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AI Fullstack Engineer

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Within Hyperskill, we run a Venture Studio — an environment where we experiment with AI-first products, launch our own startups, and bring in external founders who develop early-stage ideas, identify market signals, and validate demand together with us.
When a product shows traction, we provide pre-seed investment and support the team until they reach the stage of raising external funding.

We run multiple projects in parallel, each led by a different founder. Many of these projects require strong technical support — from rapid MVP development to ongoing product iterations and technical decision-making. This creates a broad and dynamic environment where engineers can work on diverse challenges across different domains.

We are now looking for AI Fullstack Engineers who can join these projects and help founders bring their ideas to life.

What You Will Do

Build end-to-end prototypes and early-stage applications — front-end, back-end, and AI components — using fast, iterative, experimental development cycles.
Use AI tools extensively to speed up coding, generate solutions, test ideas, and explore multiple implementation paths quickly.
Prototype fast and often: ship quick versions, validate assumptions, collect feedback, and refine without over-engineering.
Work closely with founders to define product direction, target use cases, and core value propositions based on early market signals.
Design, implement, and evaluate AI features (quality, performance, reliability, user experience) and continually improve them.
Make technical decisions independently, balancing speed and quality while keeping the product goal in focus.

What We’re Looking For

AI-Full-stack engineering background — ability to build complete prototypes and early-stage applications end-to-end: front-end, back-end, and AI components.
Experience with a wide range of AI/LLM tools and techniques — ability to use AI to code fast, explore multiple solutions quickly, and speed up development.
Hacker/entrepreneurial engineering style — shipping fast, simplifying aggressively, building scrappy versions first, and optimizing only when needed.
Comfort operating in high uncertainty — figuring out the product direction together with a founder, running experiments, testing hypotheses, and making decisions with limited information.
High ownership and autonomy — ability to take broad, ambiguous tasks and turn them into working solutions without heavy guidance.
Startup-oriented engineering approach — rapid prototyping, fast iteration cycles, resourcefulness, and willingness to work across multiple domains simultaneously.

What We Offer

Contractor agreement with a US-registered legal entity.
100% remote — work from anywhere in the world.
Competitive salary in USD + options in the product you're working on — we focus on market rates and are ready to match your expectations.
Possibility to take a Founding Engineer or Co-Founder role with equity in products that raise the next round.
Dynamic environment that values experimentation, rapid prototyping, speed of execution, and creative problem-solving.
Wide field for growth — contribute to different products, influence their direction, and see how ideas grow into real companies.

Upload your resume and tell us a few words about yourself — we’d love to hear from you!

Suvoda is seeking a skilled and driven Cloud Data Engineer to help evolve our data platform towards a data mesh architecture. In this role, you’ll design and build domain-oriented data products and support near real-time reporting.You’ll work on building and optimizing ETL/ELT pipelines using AWS Glue and PySpark, ensuring scalable, high-performance data processing across our platform.

Responsibilities:

Contribute to the design and implementation of a data mesh architecture using GraphQL APIs to expose domain-owned data products.
Build and maintain a modern AWS-based data lake using S3, Glue, Lake Formation, Athena, and Redshift.
Develop and optimize ETL/ELT pipelines using AWS Glue and PySpark to support batch and streaming data workloads.
Implement AWS DMS pipelines to replicate data into Aurora PostgreSQL for near real-time analytics and reporting.
Support data governance, quality, observability, and API design best practices.
Collaborate with product, engineering, and analytics teams to deliver robust, reusable data solutions.
Contribute to automation and CI/CD practices for data infrastructure and pipelines.
Stay current with emerging technologies and industry trends to help evolve the platform.

Requirements:

Bachelor’s degree in a technical field such as Computer Science or Mathematics.
At least 4 years of experience in data engineering, with demonstrated ownership of complex data systems.
Solid experience with AWS data lake technologies (S3, Glue, Lake Formation, Athena, Redshift).
Understanding of data mesh principles and decentralized data architecture.
Proficiency in Python, SQL
Experience with data modeling, orchestration tools (e.g., Airflow), and CI/CD pipelines.
Strong communication and collaboration skills.

Preferred Qualifications:

Master’s degree, especially with a focus on data engineering, distributed systems, or cloud architecture.
Hands-on experience in infrastructure-as-code tools (e.g., Terraform, CloudFormation).
Expertise in AWS Glue and PySpark for scalable ETL/ELT development.
Experience with event-driven architectures (e.g., Kafka, Kinesis).
Familiarity with data cataloging and metadata management tools.
Knowledge of data privacy and compliance standards (e.g., GDPR, HIPAA).
Background in agile development and DevOps practices.

Technical Interviewer Lead (Data and AI)

At Lumenalta, we create impactful software solutions that drive innovation and transform businesses. Since 2000, we’ve partnered with visionary leaders to build cutting-edge tech, solve complex challenges, and deliver results faster through our elite teams and tech-driven approach. Join us in shaping the future of technology.

Your Role

Conduct 2nd interviews that will test the technical depth of candidates and their suitability for positions available
Coordinate with hiring managers to understand the business needs promptly
Be a vital part of the recruitment team

Requirements

Senior Software Engineer with a deep understanding of data architecture, AI/ML integration, and backend systems
Strong experience designing and deploying scalable, data-driven applications
You have at least 5 years of experience working as an Engineer on projects at scale.
You have hired other engineers to join your team in the past.
You have worked in a high-growth dynamic company

Location

This is a fully remote position; however, candidates must be based in regions that align with the Pacific, Central or Eastern U.S. time zones to ensure effective collaboration with client and team schedules.

Application Deadline

This is an evergreen opening with no set deadline; we’re always excited to connect with professionals who want to help us build the future

Senior JavaScript Engineer

Ciklum is looking for a Senior JavaScript Engineer to join our team in Spain.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior JavaScript Engineer, you'll become a part of a cross-functional development team engineering experiences of tomorrow. You will be responsible for creating modern, high-performance web experiences for both our customer-facing sites and internal tools.

Responsibilities:

Develop modern, high-converting user interfaces using effective marketing and design techniques
Implement the frontend for our public sites and internal tools, ensuring compliance with web standards and full cross-browser and mobile responsiveness
Integrate frontend components with PHP-based environments (experience with Twig or similar templating engines is a plus)
Execute tests across multiple browsers and devices to ensure maximum performance and reliability
Collaborate closely with Product, Marketing, Design, QA, and Operations teams
Perform regular code reviews to maintain quality and consistency across the team
Write clean, reusable, and efficient code, adhering to established best practices and design patterns

Requirements:

5+ years of professional experience in frontend development
Strong proficiency in HTML5, CSS3, JavaScript (vanilla and jQuery), and Git
Solid understanding of PHP environments and familiarity with Twig or similar templating systems
Ability to code from scratch using modern JavaScript (ES6+)
In-depth knowledge of CSS methodologies (e.g., BEM) and preprocessors such as SASS
Comfortable using package managers (Yarn, NPM, etc.)
A passion for clean code, design patterns, and best practices
Experience with A/B test coding and comprehensive browser testing/debugging
Strong analytical and problem-solving skills
Conversational Spanish and Intermediate English communication skills are required
Proactive, flexible, self-driven, and with an entrepreneurial mindset
Demonstrated ability to work independently and take ownership of features and projects

Desirable:

Experience contributing to projects using React and/or TypeScript for scalable frontend solutions
Proven experience in mentoring junior developers and participating in code architecture discussions

What`s in it for you?

Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance and 4 additional undocumented sick leave days
Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications
Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
Flexibility: Own your schedule – you are the one to decide when to start your working day. Just don’t miss your regular team stand-up. We are there to support your work-life balance and provide 23 vacation days & short Fridays
Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential
Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
Based in Málaga, our team thrives in one of Andalusia’s leading tech hubs. Enjoy a hybrid work setup, the sunny Mediterranean vibe, and endless opportunities to grow your skills on global-scale projects.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

Jira Administrator / Developer

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Social Discovery Group

Social Discovery Group (SDG) is the 3rd largest social discovery company in the world, uniting 60+ brands with 500 million users. We solve the problems of loneliness, isolation, and disconnection by transforming virtual intimacy into the new normal. Our portfolio includes online communication platforms focusing on AI, game mechanics, and video streaming - Dating.com, DateMyAge, Cupid Media, Dil Mil, Kiseki, and others.

SDG invests in IT startups around the world. Our investments include Open AI, Patreon, Flo, Clubhouse, Woebot, Flure, Astry, Coursera, Academia.edu, and many others.

We bring together a team of like-minded people and IT professionals specializing in the creation and development of globally impactful social discovery products. Our international team of 1200 professionals and digital nomads works all over the world.

Our teams of digital nomads work remotely from Cyprus, Malta, the USA, Armenia, Georgia, Kazakhstan, Montenegro, Poland, Latvia, Serbia, Spain, Portugal, UAE, Israel, Turkey, Thailand, Indonesia, Japan, Hong Kong, Australia and many other locations.

In August 2024, we achieved Great Place to Work US Certification™! This achievement reflects our core belief that a truly exceptional workplace is built on trust, pride, and camaraderie—not just great perks.

We are looking for a Jira administrator/developer in the team named Ai&Automation.

Your main tasks will be:

1. Administration of Jira Cloud + Server + Confluence
• Managing project schemes, workflows, screens, permission schemes, and notification schemes.
• Managing users, groups, roles, and integrations with directories (AD/IdP).
• Controlling and optimizing the instance structure: projects, custom fields, workflows, permissions.
2. Jira Performance & Reliability
• Setting up and maintaining monitoring for Jira instances: uptime, latency, error rate, DB latency, etc.
• Working with Atlassian performance reports, analyzing bottlenecks (DB, indexing, custom fields, plugins).
• Planning and conducting regular performance reviews and tuning.
3. Automation & Integrations
• Creating and maintaining automation rules (Jira Automation, ScriptRunner, etc.).
• Writing Groovy/Python scripts for bulk operations, migrations, and housekeeping tasks.
• Building integrations via REST API (CI/CD, monitoring systems, internal tools).
4. Change Management & Standards
• Designing and implementing Jira configuration standards (custom field limits, workflow rules, etc.).
• Planning and executing Jira and plugin upgrades.
5. Team Support & Internal Consulting
• Collecting requirements and designing Jira solutions to support team processes.
• Troubleshooting complex incidents and non-standard scenarios.

We expect from you:

Required hard skills

• Jira Software Cloud + Server/Data Center: workflows, boards, permission/notification/screen schemes, JQL.
• Jira Service Management: queues, SLAs, request types (nice to have).
• Atlassian stack: Confluence, Bitbucket, IdP/LDAP integrations (SSO, groups).
Scripting / Coding:
• Groovy (ScriptRunner: post-functions, listeners, scheduled jobs).
• Python (utilities, migrations, bulk operations, integrations).
• Jira/Atlassian REST API (authentication, pagination, rate limits).
Performance / SRE:
• Understanding of SLI/SLO/SLA, latency, error rate, log and metrics analysis.
Infrastructure:
• Linux, Jira databases (PostgreSQL / Oracle / SQL Server), basic HA/DC concepts.
Integrations:
• CI/CD (Jenkins/GitLab/GitHub/Bitbucket), webhooks, event-driven integrations.

Required soft skills

• Systems thinking; understanding Jira as a product/platform.
• Ownership of Jira uptime, performance, and configuration quality.
• Ability to enforce standards, set limits, and say “no” with clear reasoning.
• Clear written and verbal communication with both technical and business stakeholders.
• Discipline in change management, process adherence, and post-incident analysis.

What do we offer:

REMOTE OPPORTUNITY to work full time;
Vacation 28 calendar days per year;
7 wellness days per year (time off) that can be used to deal with household issues, to lie down and recover without taking sick leave;
Bonuses up to $5000 for recommending successful applicants for positions in the company;
50% payment for professional training, international conferences and meetings;
Corporate discount for English lessons;
Health benefits. According to the paychecks, if you are not eligible for corporate medical insurance, the company will compensate you with up to $ 1,000 gross per year per employee. This can be spent on self-purchase of health insurance or on doctor’s fees for yourself and close relatives (spouse, children);
Workplace organization. The company provides all employees with an equipped workplace and all the necessary equipment (table, armchair, wifi, etc.) in our offices or co-working locations. In the other locations, the company provides reimbursement of workplace costs up to $ 1000 gross once every 3 years, according to the paychecks. This money can be spent on the rent of the co-working room, on equipping the working place at home (desk, chair, Internet, etc.) during those 3 years;
Internal gamified gratitude system: receive bonuses from colleagues and exchange them for our merchandise, team building activities, massage certificates, etc.

Sounds good? Join us now!

Senior Frontend Developer

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Social Discovery Group

SDG invests in IT startups around the world. Our investments include Open AI, Patreon, Flo, Clubhouse, Woebot, Flure, Astry, Coursera, Academia.edu, and many others.

We are looking for a Senior Front End Developer.

Your main tasks will be:

Participation in designing the application architecture.
Development of new and finalization of current functionality.
Implementation of components and services.
Control over the quality of implementation.

We expect from you:

REQUIRED HARD SKILLS
- Excellent knowledge of JavaScript and TypeScript;
- Proficient in developing mobile applications using React Native, with a strong understanding of React's core principles and component lifecycle;
- Experience with native modules integration (both iOS and Android);
- Proven experience in mobile application architecture: ability to design, evaluate, and evolve scalable and maintainable app architectures; brings own perspective and ideas on improving structure and long-term code quality, not just following existing patterns;
- Experience and understanding of the practical application of SOLID principles and clean code practices;
- Hands-on experience with state management libraries such as Redux, Zustand, Recoil, or MobX;
- Experience with reactive programming patterns and RxJS, including working with Observables, streams, and event-driven data flows;
- Solid understanding of mobile app architecture, navigation, and performance optimization;
- Good understanding of asynchronous programming, API integration, and handling network requests efficiently;
- Familiarity with CI/CD pipelines, App Store / Google Play release processes, and app signing;
- Experience integrating In-App Purchases and payment systems (native Apple and Google payments);
- Familiarity with push notification systems such as APNs (Apple Push Notification Service) and FCM (Firebase Cloud Messaging);
- Experience working with design systems, responsive UI, and animation libraries (e.g. Reanimated, Gesture Handler);
- Understanding of testing practices (unit, integration, and E2E tests) using tools such as Jest, Detox, or React Native Testing Library.
REQUIRED SOFT SKILLS
We are looking for a team player who can effectively collaborate with colleagues and contribute to a positive work environment. The ideal candidate is adaptable and open to change, quickly learning new technologies and approaches. A strong sense of responsibility is essential, along with the ability to analyze information critically and propose effective solutions. We value proactive individuals who take initiative and seek opportunities for improvement. Strong time management skills are required to prioritize tasks efficiently. Additionally, the ability to handle conflicts constructively and maintain a professional attitude in challenging situations is highly desirable.

What do we offer:

REMOTE OPPORTUNITY to work full time;
Vacation 28 calendar days per year;
7 wellness days per year (time off) that can be used to deal with household issues, to lie down and recover without taking sick leave;
Bonuses up to $5000 for recommending successful applicants for positions in the company;
50% payment for professional training, international conferences and meetings;
Corporate discount for English lessons;
Health benefits. According to the paychecks, if you are not eligible for corporate medical insurance, the company will compensate you with up to $ 1,000 gross per year per employee. This can be spent on self-purchase of health insurance or on doctor’s fees for yourself and close relatives (spouse, children);
Workplace organization. The company provides all employees with an equipped workplace and all the necessary equipment (table, armchair, wifi, etc.) in our offices or co-working locations. In the other locations, the company provides reimbursement of workplace costs up to $ 1000 gross once every 3 years, according to the paychecks. This money can be spent on the rent of the co-working room, on equipping the working place at home (desk, chair, Internet, etc.) during those 3 years;
Internal gamified gratitude system: receive bonuses from colleagues and exchange them for our merchandise, team building activities, massage certificates, etc.

Sounds good? Join us now!

Senior Backend Developer

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Social Discovery Group

SDG invests in IT startups around the world. Our investments include Open AI, Patreon, Flo, Clubhouse, Woebot, Flure, Astry, Coursera, Academia.edu, and many others.

We are looking for a Senior Back End Developer.

Your main tasks will be:

Participation in designing the architecture of a large, high-loaded application.
Development of new and finalization of current functionality.
Implementation of components and services.
Control over the quality of implementation

We expect from you:

REQUIRED HARD SKILLS
- Excellent knowledge of C# and .NET Core
- Experience developing distributed and/or high-load applications
- Experience with RabbitMQ or other Message Brokers
- Required experience with Microsoft SQL Server, experience with NoSQL would be a plus
- Familiarity with Docker, Kubernetes, or other containerization and orchestration tools
- Experience with monitoring and observability tools (e.g. Prometheus, Grafana, ELK)
- Experience with unit testing, integration testing.
REQUIRED SOFT SKILLS
We are looking for a team player who can effectively collaborate with colleagues and contribute to a positive work environment. The ideal candidate is adaptable and open to change, quickly learning new technologies and approaches. A strong sense of responsibility is essential, along with the ability to analyze information critically and propose effective solutions. We value proactive individuals who take initiative and seek opportunities for improvement. Strong time management skills are required to prioritize tasks efficiently. Additionally, the ability to handle conflicts constructively and maintain a professional attitude in challenging situations is highly desirable.

What do we offer:

REMOTE OPPORTUNITY to work full time;
Vacation 28 calendar days per year;
7 wellness days per year (time off) that can be used to deal with household issues, to lie down and recover without taking sick leave;
Bonuses up to $5000 for recommending successful applicants for positions in the company;
50% payment for professional training, international conferences and meetings;
Corporate discount for English lessons;
Health benefits. According to the paychecks, if you are not eligible for corporate medical insurance, the company will compensate you with up to $ 1,000 gross per year per employee. This can be spent on self-purchase of health insurance or on doctor’s fees for yourself and close relatives (spouse, children);
Workplace organization. The company provides all employees with an equipped workplace and all the necessary equipment (table, armchair, wifi, etc.) in our offices or co-working locations. In the other locations, the company provides reimbursement of workplace costs up to $ 1000 gross once every 3 years, according to the paychecks. This money can be spent on the rent of the co-working room, on equipping the working place at home (desk, chair, Internet, etc.) during those 3 years;
Internal gamified gratitude system: receive bonuses from colleagues and exchange them for our merchandise, team building activities, massage certificates, etc.

Sounds good? Join us now!

🏠 Remote & ✈️ Relocation

Tabby creates financial freedom in the way people shop, earn and save by reshaping their relationship with money. Over 15 million users choose Tabby to stay in control of their spending and make the most out of their money.

The company’s flagship offering allows shoppers to split their payments online and in-store with no interest or fees. Over 40,000 global brands and small businesses, including Amazon, Noon, IKEA, and SHEIN use Tabby to accelerate growth and gain loyal customers by offering easy and flexible payments online and in stores.

Tabby generates over $10 billion in annual transaction volume for its partner brands and is the highest-rated, most-reviewed, largest, and fastest-growing FinTech in the GCC region.

Tabby launched in 2019 and has since raised +$1 billion in equity and debt funding from global and regional investors, and is now valued at $4.3 billion.

We are hiring a Data Partner who will become a key part of our evolving data culture and help business users extract the full value from the DWH data.

Key Responsibilities:

Development of data models for analytics, reporting, and use of data for ML and Backend services
Development of Data Mesh, creation and maintenance of Data Products within the domain, from requirements gathering to implementation
Ensuring data quality through the development of automated checks (Data Quality Tests)
Optimizing the cost of data consumption, improving computational resource usage efficiency, and developing Data Products through metrics

What you’ll bring:

3+ years of experience as a Data Engineer or Data Analyst
Data modeling: SCD forms, Normal forms, Star / Snowflake Schema, Data Vault
Good knowledge of Python
Good knowledge of SQL
Familiar with tech stack as Airflow, dbt, BigQuery, Clickhouse, GitLab(CI/CD)
Familiar with BI tools as Looker, Tableau, Metabase
Best practices for data processing and data storing
Experience on Google Cloud Platform
Strong communication skills in English

What we offer:

Full-time B2B contract
Fully remote setup, work from anywhere in Europe
Up to 20% tax allowance
22 paid leave days annually
Stock options (ESOP) in a fast-scaling, pre-IPO company
Flexi benefits you can use for wellness, travel, or learning
Work alongside a high-performing, international engineering team in a global fintech unicorn

Relocation support is available to our hubs in Armenia, Georgia, Serbia, Portugal, and Spain, including flights, temporary accommodation, legal setup (if needed)

Senior Infrastructure Engineer (Runtime Systems)

We are looking for an engineer to build geo-distributed infrastructure and develop a PaaS platform, ensuring high reliability and performance of services as well as uninterrupted operation of the network connecting multiple data centers and cloud environments. The role involves participation across the full project lifecycle, process automation, and working with a modern tech stack: Linux (Ubuntu, Amazon Linux), Kubernetes, Docker/Containerd, CI/CD, Ansible/Saltstack, Git, multi-cloud solutions (AWS, GCP), and networking technologies (BGP, Bird, StrongSwan).

Responsibilities

Building a geo distributed infrastructure, ensuring maximum performance and reliability of our services
Creation of PaaS platform
Participation in the life cycle of projects at all stages, including the design and development of services, resource planning and maintenance
Improving processes related to system maintenance (fault tolerance, scaling, postmortems, finding and eliminating bottlenecks)
Automation of build, test and application delivery processes
On call duty
Development of services and infrastructure management tools
Understanding of BGP protocol principles experience with network connectivity in multicloud and on premise solutions experience working with solutions based on Bird and StrongSwan

Qualifications

Deep knowledge and understanding of Linux OS (we use Ubuntu, Amazon Linux)
Knowledge and experience with Kubernetes clusters
Experience with public and private clouds (AWS, GCP, Yandex.Cloud)
Deep knowledge of Docker / Containerd containerization technologies
Experience in building CI/CD Pipelines
Experience in using Ansible / Saltstack and writing roles / playbooks / states / pillars.
Strong command of Git
Ability to independently decompose tasks and bring them to the end
Еnsuring uninterrupted operation and improvement of the network connecting multiple data centers and cloud infrastructure

Conditions & Benefits

Stable salary, official employment
Health insurance
Hybrid work mode and flexile schedule
Relocation package offered for candidates from other regions
Access to professional counseling services including psychological, financial, and legal support
Discount club membership
Diverse internal training programs
Partially or fully payed additional training courses
All necessary work equipment

An exciting opportunity to make a huge impact on our data platform as we transition to a more scalable and efficient architecture. Ally if you thrive on solving complex data challenges with us!

At Sweatcoin, we're driven by a shared mission to make the world more active, and we value creativity, collaboration, and a passion for solving complex problems.

Our iOS and Android apps have more than 200M installs, 15M+ active users, more than 500 commercial partners and confirmed by the independent academic research ability to make our users up to 20% more active.

The most downloaded Health app of the year (2022), having been No.1 Overall App in 56 countries and counting!

This is an exciting opportunity to make a huge impact on our data platform as we transition to a more scalable and efficient architecture. If you thrive on solving complex data challenges and want to be part of a high-performing team, we’d love to hear from you!

What we offer:

A team of exceptional people who celebrate our community by being supportive and creative all the way. The head of data once was developing mind-reading helmet; a software developer has his certified psychological practice; QA-vet; QA-skipper; and a number of musicians that might allow us to start our own band. All together we’re multiplying each other’s talents which inspire us to develop a product we’re all proud of.
A product that promotes health and fitness in 100 countries. Sweatcoin has proven to help people and create multiple inspiring stories like this one.
A startup that actually works. We are completely self-sufficient yet our investors are excited to provide us with even more resources to keep growing. We recently broke our record of 10M new users each week.
Models that help us to verify steps so there is no cheat way a dog can earn coins for an owner.
Automatised A/B tests, analytics that are deeply integrated into the product, a modern data stack (jupiter, bigquery, airflow, looker).

We are looking for a Senior Data Engineer to join our team and play a key role in migrating our data infrastructure to a new architecture. You will work alongside two other engineers on this large-scale migration and help shape the future of our data platform. Over time, our team will evolve into a platform-focused group, building automation tools, improving performance, ensuring data pipeline resilience, and strengthening data governance.

What you will do:

Lead and execute the migration from Firebase-BigQuery-Looker to a self-hosted stack including Snowplow, Kafka, ClickHouse, Trino, Spark, S3, and Redash.
Design, develop, and optimise scalable, high-performance data pipelines.
Automate data processing and workflow orchestration.
Enhance data infrastructure reliability, scalability, and cost-efficiency.
Collaborate with engineers and analysts to define best practices for data processing, storage, and governance.
Develop internal tools for data quality monitoring, lineage tracking, and debugging.
Optimize query performance and ensure efficient data modeling.

What we expect from you:

Expertise in Data Engineering: Strong experience building, maintaining, and optimizing ETL/ELT pipelines.
Strong Coding Skills: Proficiency in Python and SQL for data processing and analytics.
Distributed Systems Experience: Hands-on experience with Kafka, Trino, ClickHouse, Spark, or similar.
Cloud & Storage: Experience with S3 or equivalent object storage solutions.
Infrastructure & Tooling: Proficiency with Docker, Kubernetes, Git, and CI/CD pipelines.
Orchestration & Automation: Familiarity with workflow orchestration tools like Airflow or dbt.
Analytical Thinking: Ability to optimize system performance and troubleshoot complex data issues.
Self-Starter Mentality: Comfortable working in a fast-paced, evolving environment with minimal supervision.
Strong Communication Skills: Fluent English to ensure smooth collaboration within the team.

Nice to have:

Experience with Snowplow for event tracking and data collection.
Knowledge of data governance and security best practices.
Familiarity with machine learning pipelines and real-time analytics.

What you get in return:

Remote-friendly & Flexible working hours. The flexibility is incredible, performance is based on output, rather than hours spent working, you can be wherever you want!
Apple devices for work
Team buildings abroad in exciting locations!
Health insurance coverage
WellBeing program, which supports up to 2 counselling sessions per month
Unlimited time-off policy

If you feel that that’s a match we would be excited to have you on our team!

TON Connect is an infrastructure product that provides secure and seamless integration between wallets and decentralized applications within TON ecosystem.

Our mission is to build a standardized and scalable connectivity framework that:

Is developer-friendly and easy to integrate with dApps.
Supports multiple wallet providers with flexible configurations.
Can handle millions of users efficiently.

Our goal is to enhance the infrastructure and improve the protocol with the help of talented engineers.

We are seeking a talented Software Engineer to join our portfolio project, TON Connect, and become a key part of its innovative journey.

Responsibilities:

Develop, maintain, and optimize the Wallet Ranking Service.
Build and maintain an in-house high-performance bridge for connecting wallets and dApps, capable of handling 10M+ TPS.
Optimize existing infrastructure, reducing packet loss and improving scalability.
Develop a SaaS solution for the automated deployment of wallet bridge infrastructure.
Provide technical support for TON Connect Bridge operations.
Work on protocol improvements, including the development of new APIs.

Requirements:

5+ years of experience in backend development, working with high-load distributed systems.
Proficiency in Go (TypeScript is a plus).
Experience with PostgreSQL, TimescaleDB, ClickHouse, and database sharding.
Experience with high-load architectures (handling 1M+ RPS).
Strong DevOps skills: experience with Docker, Kubernetes, CI/CD.
B2+ English proficiency (for external communication).

Why it is a fantastic opportunity:

Our business is growing at an exponential scale.
Non-bureaucratic management that focuses on results.
Regular performance reviews to assess your progress.
Remote setup with access to our hubs in Dubai, Yerevan, London and Belgrade.
Compensation for medical expenses.
Provision of necessary equipment.
20 working days of paid vacation annually.
11 days off per year.
14 days of paid sick leave to support your health and recovery when needed.
Access to internal conferences, English courses and corporate events.

Software Engineer (AI Editing Framework)

We’re looking for a Software Engineer to join our engineering team and play a key role in designing and developing Prezi, a full-cycle presentation platform used by millions worldwide.

Why Join Us?

This role focuses on developing the cutting-edge, AI-driven presentation creation workflow of Prezi Present (our flagship product) along with crafting tooling, system design and architecture to support it.

What You’ll Do

Work on the next generation framework and architecture of the Prezi Present Editor, enabling teams across Prezi to build agentic features.
Expand and maintain the framework to support an AI-driven contextual editing flow.
Write high-quality code in a complex codebase to ensure a smooth, optimal user experience, even in low-resource environments or poor network conditions.

Your efforts will directly impact millions of presenters and audiences, helping them craft and deliver compelling visual stories. You’ll work in a cross-functional team and report to Ashutosh Kumar Jha, our Senior Engineering Manager.

We’d love to talk to you if you:

Have experience in software development with statically typed languages (e.g., C++, C#, Java, or TypeScript).
Are passionate about AI-driven products and have a deep product mindset.
Are excited to learn other coding languages or tech stacks as needed.
Are self-driven and bring a thoughtful, structured approach to your work.
Communicate effectively in English with both technical and non-technical teams.
Exhibit a high sense of self-sufficiency and ownership in your work.

While not required, experience with the following will make you stand out:

Familiarity with AI APIs, frameworks and tools.
Background in backend technologies like Node.js and cloud services.
Systems that prioritize async communication, memory usage efficiency, and performance.

Why Prezi?

At Prezi, diversity and creativity matter. We believe in building inclusive tools for everyone by employing and celebrating people from every background.

Our mission to revolutionize knowledge sharing begins with empowering people—including you. If you care about visual communication, team collaboration, and empowering users, you’ll love working with us.

What benefits are waiting for you?

Employment contract via Remote.com
Flexible working hours
Paid sick leave
Paid flexible PTO
Prezi holidays
Laptop
Home office setup subsidy - budget for purchasing extra equipment for your home office
Monthly contribution towards your internet bills
Stock options

Taking care of yourself:

Private medical care
Gym perk
PsychCom— supporting you with legal, financial and personal support advice

Events connecting us together:

PowerWeek - annual event for the whole company organised in an exciting EU location
Game nights
Cooking events

*Benefits package varies by location and complies with local regulations

Senior Backend AI Engineer

This is a remote position.

Design and implement robust, scalable, and secure backend services for AI-powered products
Work closely with data scientists and ML engineers to integrate models into production systems
Build and optimize APIs, microservices, and data pipelines for real-time and batch processing
Ensure low-latency inference, efficient model deployment, and resource management
Maintain and improve CI/CD pipelines, containerization (Docker/Kubernetes), and cloud infrastructure
Monitor, debug, and optimize backend systems for performance, scalability, and reliability
Collaborate with cross-functional teams to define system architecture and technical standards
Stay current with AI infrastructure trends, tools, and best practices

Requirements

5+ years of backend software development experience, ideally in Python, Go, or Java
2+ years of experience deploying and scaling machine learning models in production
Solid understanding of RESTful APIs, gRPC, message queues, and microservice architectures
Experience with ML frameworks (e.g., TensorFlow, PyTorch, ONNX) and serving tools(e.g., TorchServe, Triton, FastAPI)
Strong knowledge of Docker, Kubernetes, and cloud platforms (AWS, GCP, or Azure)
Familiarity with data pipelines, distributed systems, and model versioning (MLflow or similar)
Proficiency in SQL and NoSQL databases (e.g., PostgreSQL, Redis, MongoDB)

We're seeking junior+ level Machine Learning Engineer to join our team. This is your chance to apply your skills to a project with real-world impact.

About Us

Mad Devs is a full-stack team specializing in developing and administering large-scale IT products across diverse industries. Many of our products operate in Europe, the USA, and countries across Southeast Asia. We are passionate about tackling complex challenges and delivering innovative solutions that make a meaningful impact globally.

Responsibilities:

Develop and implement machine learning algorithms
Transfer machine learning models from development to real-world application
Compare different approaches to solve complex business problems
Collaborate with customers to identify their problems and opportunities for solving them\ using machine learning tools
Develop algorithms for recommendation and ranking systems
Develop intelligent assistants
Keep models and instructions for language models up to date

Our expectations:

Minimum 1,5+ year in startups or professional services firms
Familiarity with software development and delivery processes. Understand the key steps involved
Customer negotiation skills to actively participate in identifying their needs and objectives
Ability to gather and analyze requirements and translate business requirements into technical specifications
Can generate clear and achievable goals for machine learning tasks/projects
Can conduct regular demos for customers and explain technical aspects and achievements in an accessible manner
Knowledge and experience in developing and tuning machine learning models for various tasks such as classification, regression, clustering, etc. Integration of off-the-shelf solutions
Experience working with big data and systems to process it
Know how to use data analysis to identify insights and patterns that can help solve business problems
Mathematical background
Knowledge of basic machine learning algorithms and metrics
Experience implementing machine learning models in a production environment
Experience working towards natural language processing (NLP)
Experience with large language models (LLM)
Experience developing agent systems based on popular frameworks (LangChain, LangGraph). Experience implementing multi-tool and multi-agent systems.
B2 English level, fluent Russian
Tech stack: Python, SQL, PostgreSQL, Pandas, FastAPI/Flask/Django, Pydantic, SQLAlchemy, Sklearn, PyTorch, Transformers, Git, BitBucket, CI / CD, conflict resolution, Docker, OpenAI API, LangChain, LangGraph, LangSmith, Airflow, BigQuery

Why join us

At Mad Devs, you'll join a passionate team dedicated to solving complex challenges and delivering innovative solutions. Our projects span Europe, the USA and South East Asia, giving you the opportunity to make a global impact. We value flexibility, remote working and professional development, ensuring you thrive in an inspiring environment. Join us in revolutionizing the legal industry with AI!

Senior Fullstack Engineer

X-FLOW is a mobile game development company established in 2018. We gained recognition after the release of Happy Color, the most popular digital coloring book and one of the most successful ad-driven mobile apps in the world. We take pride in our diverse and talented team and partners, spread across the UK, Cyprus, the Netherlands, and other regions worldwide.

We are currently looking for a Senior Fullstack Engineer for our flagship project, Happy Color.

Key Responsibilities:

Design and develop microservices in Go/PHP (REST/gRPC), public and internal APIs.
Develop frontend using TypeScript (React) with a focus on performance and Developer Experience (DX).
Integrate with external services, develop contracts.
Optimize performance, profiling, reduce latency, and scale systems.
Design database schemas, perform migrations, indexing, and query optimization.
Implement and maintain CI/CD, cloud infrastructure (AWS) with Docker/Kubernetes.
Ensure quality: writing tests (unit/integration/e2e), code reviews, automation of checks.
Ensure observability and reliability: logging, metrics, alerting, tracing.
Participate in architectural design, RFCs/ADRs.

Requirements:

3+ years of commercial development experience, including 3+ years with Golang/PHP and 3+ years with TypeScript.
Strong frontend skills with TypeScript: React, state management (Redux Toolkit), routing, bundle formation, and optimization.
Databases: PostgreSQL/MySQL, Redis; design, indexing, transactions.
Queues/Buses: Kafka/NATS — experience in designing event-driven integrations.
CI/CD: GitLab CI, feature flags, migrations, blue‑green/rolling deployments.
Security: OAuth2, JWT.
Understanding of DDD principles, SOLID, 12-factor methodology, observability (Prometheus/Grafana, OpenTelemetry).
Russian - С1/higher, English - B1.

Nice to have:

Testing: Jest, Playwright; for Go — testing/testify, integration/e2e.
Data architecture: CQRS/Event Sourcing, idempotency, deduplication.
Experience building BFFs, WebSockets.
Feature flags, experiments/A-B testing, product metrics.

Technology Stack (Primary):

Backend: Go, PHP, gRPC/REST, PostgreSQL, Redis, Kafka.
Frontend: TypeScript, React, Redux Toolkit, Playwright.
DevOps: GitLab CI, Docker, nice to have: Kubernetes, AWS, Helm.
Observability: Prometheus, Grafana, Loki, OpenTelemetry, Sentry.

What We Offer:

Competitive salary and benefits package.
Opportunity to work with a talented and passionate team in a creative and dynamic environment.
Flexible working hours and remote/office work options.
Career growth and professional development opportunities.
A fun and inclusive company culture that celebrates diversity and creativity.

Join us and let’s create great product together!

Join SalesApe, one of the fastest-growing AI companies, recognised as a leader in cutting-edge AI technology and backed by over $20 million from top VCs.

We’re at the dawn of a powerful evolution, set to transform society with our tech. Our mission? To tackle inequality by empowering a huge market of non-tech SMBs—93% of all businesses, think construction, automotive, real estate, and more. While the tech industry has compounded its growth with computing power, these businesses have been technically starved.

With AI agents and our natural language interface technology, we’re unlocking huge productivity gains for our clients. It’s deeply rewarding to see firsthand the transformation in small businesses as they embrace their agent—not just as a tool, but as a trusted, hard-working member of their team. The emotional bond our clients feel toward their agent is undeniable—they often tell us their ‘Ape’ has become part of the family. Our vision is to become the ‘ brain’ of a business spinning out agent worker, freeing up time and simplifying operations, to ensure humans spend more time in real-life interaction.

If you’re ready for intense, high-energy, meaningful work, come make a real impact with us at SalesApe

Our Mission and Purpose:

As we started building with large language models and AI-powered natural language interfaces, I had an aha moment. It hit me just how significant this inflection point is: compute—the raw power of computers—is now accessible to people who don’t use computers."

"And when I thought about that, I realized the closest invention humanity has seen to this shift was electricity. When electricity arrived, it didn’t just light up homes—it transformed industries, democratized wealth, and empowered everyone, from factory owners to farmers, to grow and thrive. Today, with AI, we have the opportunity to do the same for the real economy."

"For the last two decades, the tech industry has had an incredible advantage. Computers have been like co-pilots for us, quietly amplifying our productivity and enabling us to grow faster than ever before. But 95% of businesses—builders, plumbers, and real estate agents—have been technically starved. These businesses make up 50% of GDP, five times larger than the entire tech industry, but they’ve never had access to the tools they need to compete."

"This is the inequality we’re solving. APE AI is democratizing technology, bringing the power of compute to businesses that have been left behind. And what’s so rewarding is that we’re not just helping faceless corporations—we’re empowering real people. Small business owners who pour their hearts into their work. People whose success directly impacts their families, their communities, and society at large. It’s deeply rewarding to see firsthand the transformation in small businesses as they embrace their agent—not just as a tool, but as a trusted, hard-working member of their team."

"For me, this mission is personal. I’ve spent my career building companies that encourage people to connect in real life, to be physically active, and to engage with their communities. This isn’t just about productivity—it’s about health, happiness, and thriving societies. Humans weren’t built to spend their lives staring at screens. We’re wired to interact, to move, to be part of the real world. And what excites me is that Ape AI is helping to make this possible—empowering businesses that create real-world value to thrive at the same pace as the tech giants."

"This isn’t just about technology. It’s about fairness. It’s about giving the power of compute to the people who need it most, so they can grow, thrive, and make a difference. That’s our mission, and it’s something we can all be proud of."

The Role:

We are currently recruiting for an experienced Full Stack Developer to work on an exciting AI product. You will be reporting to the Head of Engineering and working with a small but experienced product team to deliver groundbreaking products to market.The work will be challenging but varied and rewarding. We are looking for someone who isn’t afraid to take on new challenges and is able to collaborate well with the team to solve complex problems.

Experience working with Typescript / JS and Python
5/7+ years of experience developing with backend web technologies, such as Django, FastAPI, Flask etc
Experience developing with modern frontend technologies, such as React, Angular or Vue
Experience working with fast-paced startup teams
Proficient working with Github
Ideally an interest in LLMs, prior experience here is a bonus

Middle Java Developer (Bank)

Join FxPro: a leading international fintech company. Be a part of our expanding international team, with offices in Limassol, London, Nassau, and Dubai. FxPro boasts a diverse workforce of over 500 employees representing 40 nationalities, making it an exciting and dynamic workplace. At FxPro, we see each team member as an integral part of our success story.

As a Middle Java Developer, you will be a part of our rapidly growing IT department.‍

Responsibilities

Develop and support backend services
Design and develop new functionalities in line with business requirements, following company standards (code quality, test coverage, TDD, BDD, performance requirements)
Proactively identify and report issues, vulnerabilities, and other technical problems that exist or might appear in the company's code
Collaborate with team members, other teams, project managers, and business analysts to meet the company goals

Requirements

Minimum 3 years experience as a Java Developer (Java 17+) with Spring (Spring / Spring Boot)
Bachelor's degree. A degree in Computer Science or other IT-related discipline is an advantage
Experience with CI/CD automation
Knowledge of Object-Oriented programming and S.O.L.I.D. principles
Strong development skills (decomposition, development, testing)
Experience with the development of microservices, Spring Boot, Apache Kafka, Docker, Kubernetes
Experience in SQL Databases / PostgreSQL / Hibernate
TCP/IP networking programming experience(HTTP, gRPC)
Intermediate or above level of the English Language. Greek and/or Russian is an advantage.
Relevant Experience in FinTech is considered an advantage (Stock trading, Forex, Investments, etc.) will be advantage

Our benefits

Competitive compensation package
Hybrid work schedule
Medical insurance
Provident fund
In-house gym with a personal trainer
Free daily lunch catering, snacks, and beverages
Company discount card for various products & services
21 days of annual leave and 10 days of sick leave annually
Shuttle bus service from Limassol
Birthday gift
Relocation bonus and visa/work permit support

Senior React Developer

•

Social Discovery Group

SDG invests in IT startups around the world. Our investments include Open AI, Patreon, Flo, Clubhouse, Woebot, Flure, Astry, Coursera, Academia.edu, and many others.

We are looking for a React/react-native developer.

Your main tasks will be:

Evaluate, design, and develop new functional modules for React and React Native applications.
Collaborate closely with Backend, QA, UI/UX, and BA teams throughout the entire development lifecycle.
Participate in architectural decision-making and proactively contribute technical improvements.
Monitor, diagnose, and quickly resolve production issues.
Perform code reviews and ensure high quality of frontend code.
Optimize application performance, conduct profiling, and improve overall stability.

We expect from you:

5+ years of professional experience developing and scaling modern mobile/web applications.
Deep expertise in JavaScript/TypeScript and strong hands-on experience with React, React Native, HTML/CSS.
Solid understanding of architectural patterns, OOP, SOLID principles, and scalable client-side application design.
Experience integrating with REST/GraphQL APIs, state management (Redux Toolkit, RxJS), and WebSocket.
Practical experience in performance optimization, profiling, and enhancing application stability.
Proven end-to-end project ownership and effective collaboration within cross-functional teams.
Excellent communication skills: ability to align with stakeholders, write clear technical documentation, and give/receive constructive feedback.
High level of ownership, pragmatic decision-making, and strong results orientation.
Structured thinking and focus on outcomes.

What do we offer:

REMOTE OPPORTUNITY to work full time;
Vacation 28 calendar days per year;
7 wellness days per year (time off) that can be used to deal with household issues, to lie down and recover without taking sick leave;
Bonuses up to $5000 for recommending successful applicants for positions in the company;
50% payment for professional training, international conferences and meetings;
Corporate discount for English lessons;
Health benefits. According to the paychecks, if you are not eligible for corporate medical insurance, the company will compensate you with up to $ 1,000 gross per year per employee. This can be spent on self-purchase of health insurance or on doctor’s fees for yourself and close relatives (spouse, children);
Workplace organization. The company provides all employees with an equipped workplace and all the necessary equipment (table, armchair, wifi, etc.) in our offices or co-working locations. In the other locations, the company provides reimbursement of workplace costs up to $ 1000 gross once every 3 years, according to the paychecks. This money can be spent on the rent of the co-working room, on equipping the working place at home (desk, chair, Internet, etc.) during those 3 years;
Internal gamified gratitude system: receive bonuses from colleagues and exchange them for our merchandise, team building activities, massage certificates, etc.

Sounds good? Join us now!

Senior Java Developer

As a Senior Java Developer, you will be a part of our rapidly growing IT department.‍

Responsibilities

Develop and support backend services
Design and develop new functionalities in line with business requirements, following company standards (code quality, test coverage, TDD, BDD, performance requirements)
Proactively identify and report issues, vulnerabilities, and other technical problems that exist or might appear in the company's code
Collaborate with team members, other teams, project managers, and business analysts to meet the company goals

Requirements

Minimum 5 years experience as a Java Developer (Java 17+) with Spring (Spring / Spring Boot)
Bachelor's degree. A degree in Computer Science or other IT-related discipline is an advantage
Experience with CI/CD automation
In-depth knowledge of Object-Oriented programming and S.O.L.I.D. principles
Strong development skills (decomposition, development, testing).
Experience with the development of microservices, Spring Boot, Apache Kafka, Docker, Kubernetes
Experience in SQL Databases / PostgreSQL / Hibernate
TCP/IP networking programming experience(HTTP, gRPC)
Intermediate or above level of the English Language. Greek and/or Russian is an advantage.
Relevant Experience in FinTech is considered an advantage (Stock trading, Forex, Investments, etc.) will be advantage

Our benefits

Competitive compensation package
Hybrid work schedule
Medical insurance
Provident fund
In-house gym with a personal trainer
Free daily lunch catering, snacks, and beverages
Company discount card for various products & services
21 days of annual leave and 10 days of sick leave annually
Shuttle bus service from Limassol
Birthday gift
Relocation bonus and visa/work permit support

Senior Frontend Developer (React)

Join FxPro – a leading international fintech company. Be a part of our expanding international team, with offices in Limassol, London, Nassau, and Dubai. FxPro boasts a diverse workforce of over 500 employees representing 40 nationalities, making it an exciting and dynamic workplace. At FxPro, we see each team member as an integral part of our success story.

As a Senior Frontend Developer, you will be a part of our rapidly growing IT department and join the Web team.‍

Tech Stack: React, SCSS, NodeJS, Express

Responsibilities

Design and develop flexible front-end solutions within the current infrastructure
Collaborate with involved teams during the design, development, and release process
Develop Single-page applications using cutting-edge web technologies
Proactively investigate issues and offer technical improvements for the applications
Perform code reviews for other team members

Requirements

5+ years of continuous development as a Front-End Developer
Solid knowledge of SPA Framework: React and Angular (would be a plus)
Bachelor’s Degree in Computer Science or any other related field
Fluent in English
Experience with Client-side design patterns
Understanding of Git version control software, RESTful web services, and features of Typescript
Familiarity with CI/CD process, tools, and code review procedure
Experience with SSR and multilingual websites is an advantage
Ability to study and apply up-to-date technologies to improve the company's processes/products
Hands-on Agile Software Development approach
Experience with Node.js, Express, and Fastify would be considered a plus

Our benefits

Competitive compensation package
Medical insurance
Provident fund
In-house gym with a personal trainer
Free daily lunch catering, snacks, and beverages
Company discount card for various products and services
21 days of annual leave and 10 days of sick leave annually
Shuttle bus service from Limassol
Relocation bonus and visa/work permit support