Jobs

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the client:
The company is a trailblazer in the world of data-driven advertising, known for its innovative approach to optimizing ad placements and campaign effectiveness through advanced analytics and machine learning techniques. Our mission is to revolutionize the advertising sector by enabling brands to reach their audiences more effectively.

About the role:
We are seeking an experienced and motivated Senior Data Scientist to join our dynamic team. The ideal candidate will have deep expertise in supervised learning, reinforcement learning, and optimization techniques. You will play a pivotal role in developing and implementing advanced machine learning models, driving actionable insights, and optimizing our advertising solutions.
This position is based in Ukraine. The team primarily works remotely, with occasional in-person meetings in the Kyiv or Lviv office.

Responsibilities:
- Develop and implement advanced supervised and reinforcement learning models to improve ad targeting and campaign performance.
- Collaborate with cross-functional teams to identify opportunities for leveraging machine learning and optimization techniques to solve business problems.
- Conduct extensive data analysis and feature engineering to prepare datasets for machine learning tasks.
- Apply optimization algorithms to enhance the effectiveness and efficiency of advertising campaigns.
- Evaluate and refine existing models to enhance their accuracy, efficiency, and scalability.
- Utilize statistical techniques and machine learning algorithms to analyze large and complex datasets.
- Communicate findings and recommendations effectively to both technical and non-technical stakeholders.
- Stay updated with the latest advancements in machine learning, reinforcement learning, and optimization techniques.
- Work with engineering teams to integrate models into production systems.
- Monitor, troubleshoot, and improve the performance of deployed models.
- Mentor junior data scientists and contribute to the continuous improvement of the data science practice within the company.

Requirements:
- 5+ years of experience in data science or machine learning roles, with a strong focus on supervised learning, reinforcement learning, and optimization techniques.
- Technical Skills:
- Proficiency in Python.
- Strong understanding of working with relational databases and SQL.
- Experience with machine learning libraries such as scikit-learn, TensorFlow, PyTorch, or similar.
- Deep understanding of statistical modeling and supervised learning algorithms (e.g., linear regression, logistic regression, decision trees, random forests, SVMs, gradient boosting, neural networks).
- Hands-on experience with reinforcement learning algorithms and frameworks like OpenAI Gym.
- Practical experience with optimization algorithms (linear, non-linear, combinatorial, etc.).
- Hands-on experience with data manipulation tools and libraries (e.g., pandas, NumPy).
- Familiarity with cloud services, specifically AWS, is a plus.
- Practical experience building and managing cloud-based ML pipelines using AWS services (e.g. SageMaker, Bedrock) is a plus.
- Education:
- Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, Engineering, or a related field. A PhD is a plus.

Other Skills:
- Strong analytical and problem-solving skills.
- Excellent communication skills, with the ability to clearly articulate complex concepts to diverse audiences.
- Ability to work in a fast-paced environment and manage multiple priorities.
- Strong organizational skills and attention to detail.
- Ability to mentor and guide junior data scientists.
- Must be able to communicate with U.S.-based teams

The company offers:
- An opportunity to be at the forefront of advertising technology, impacting major marketing decisions.
- A collaborative, innovative environment where your contributions make a difference.
- The chance to work with a passionate team of data scientists, engineers, product managers, and designers.
- A culture that values learning, growth, and the pursuit of excellence.

We're hiring a full-time Django developer to help with rebuild of our application. We are changing our internal application from Symfony to Django, and need someone to assist with the rebuild. Currently there is 1 developer on the rebuild, and we looking to hire an additional Django developer to speed up developement.

We are looking for a developer that doesn't just do developement, but is also a product person who understands the business logic behind tasks, and how users will be using it. Also will help make architecture decisions.

Our product (BookingAgentInfo.com) connects businesses with celebrities and influencers for endorsements, brand partnerships, and event bookings.

REQUIREMENTS: 

Must Have: 

- 5+ years Django/Python experience 

- Built systems from scratch (show us 2-3 examples) 

- Data migration experience (800K+ records preferred)

- Can work independently with clear requirements

- Excellent English communication (work with non-technical stakeholders) 

- Ownership mindset (this is YOUR system long-term) 

- 4+ hours overlap with US Eastern) 

- Must be upper-intermediate English speaker 

Strong Plus: 

- Experience rebuilding legacy systems 

- Django Admin customization expertise 

- API integration experience (Spotify, social platforms) 

- Interest in AI/ML (future roadmap) 

- Have owned a codebase long-term before 

- Comfortable being "the developer" on a project 

- Experience with Symfony is a plus but not required

N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software, IoT, and more to global industry leaders and Fortune 500 companies. Join us to create technology that drives real change for businesses and people across the world.

We are looking for experienced Senior Java Software Engineer to join our team. Our client is one of the world's largest fashion retailers selling in 215 markets through its online platform or its 6,477 stores in 95 markets. By working closely together as a single company globally focused on the key elements of fashion production – design, manufacture, distribution, and retail. All the production is founded on three pillars - flexibility, digital integration, and sustainability.

Responsibilities:

• Participate actively and constantly in the design and development of APIs
• Ensure the availability and resilience of its services that help the development of the company’s business
• Ensure the quality of development and code cleanliness (Clean Code)
• Automatic and manual exploratory execution during the development to verify that the acceptance criteria are covered
• Maintain and evolve automated test cases with QA
• Work in close contact with the Product Owner and support in the technical definition of product backlog items
• Guarantee continuous deployment, write qualitative, maintainable code with extensive test coverage in a fast-paced professional software engineering environment
• Suggest technical and functional improvements to add value to the product

Requirements:

• 5+ years of software development experience
• 4+ years of extensive Java development experience, Maven
• 2-3 years of Spring framework and building Spring web applications
• Understanding and experience developing and deploying microservices
• Experience developing REST interfaces, OpenApi
• Excellent design, coding, and debugging skills
• OOP, OOD, DDD. Design Patterns proficient
• Working knowledge of relational databases, NoSQL technologies – Mongo DB
• Working knowledge of Kafka, Kafka streaming (can be optional)
• Experience with different clouds – AWS, Azure
• Working knowledge of OpenShift, Kubernetes
• Familiar with GrayLog, Grafana
• Working experience in an Agile environment, a clear understanding of Agile methodologies mindset, and development practices applicable to them
• Excellent communication, organizational, and facilitation skills, product-oriented mindset, focus on team results, willingness to continuous personal and team improvements, leadership qualities, and resilience
• Upper-Intermediate/Advanced English level (there will be a lot of communication with the client)

Nice-to-have:

• ES6, React, Redux, Redux-saga TypeScript, CSS, RESTful APIs
• Frontend testing and performance optimization

• CSS3/SCSS/HTML5, modern responsive design techniques

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Hello, future colleague!

At DreamPlay, we create pixel-perfect slot games powered by our own engine. We are reinventing the gambling experience by delivering unique, high-quality games to the market.

We are a team of professionals who value quality, ownership, transparency, and collaboration. We believe in a results-driven environment where everyone has the space to grow, contribute, and make an impact.

We are currently looking for a Senior Back-End Developer (Scala) to join our team and help build scalable backend solutions for our gaming platform.

If you enjoy solving complex technical challenges and working with high-load systems, we would love to meet you.

Requirements:

Must have:

• Strong experience with Scala.
• Experience with Akka.
• Experience building high-load backend systems.
• Experience with Docker.
• Experience with CI/CD pipelines.
• Solid experience with microservices architecture.
• Experience in the iGaming industry.

Would be a plus:

• Experience with Kubernetes (K8s).
• Experience with SBT.
• Experience with distributed systems.

• English: B1+.

   

Key Responsibilities:

• Develop and maintain backend services for gaming products.
• Write clean, scalable, and maintainable code.
• Participate in architecture discussions and technical decisions.
• Collaborate closely with frontend, game developers, and product teams.
• Ensure performance, reliability, and scalability of backend systems.

• Contribute to improving engineering practices and development processes.

   

We Offer:

• Opportunity to work remotely.
• Flexible working hours — you choose when to start your day.
• Modern Mac equipment.
• Career growth within a team of iGaming professionals.
• Supportive, transparent team culture with minimal bureaucracy.
• Time-off policy that fits real life (paid vacation, sick leave, public holiday).
• Benefits for employees.

Hello, future colleague!

At DreamPlay, we create pixel-perfect slot games powered by our own engine. We are reinventing the gambling experience by delivering unique, high-quality games to the market.
We are a team of professionals who value quality, ownership, transparency, and collaboration. We believe in a results-driven environment where everyone has the space to grow, contribute, and make an impact.

We are currently looking for a Lead Front-End Engineer to join our team.

In this role, you will lead the development of front-end solutions for our slot games, contribute to technical decisions, and help grow strong frontend engineering practices within the team.

If you are passionate about building high-quality gaming experiences and enjoy solving complex technical challenges, we would love to meet you.

Requirements:

Must have:

• Strong knowledge of JavaScript / React / Redux.
• Knowledge of PixiJS / SpineJS.
• Experience building complex frontend applications.
• Understanding of how graphics rendering works.
• Experience reviewing code and maintaining high engineering standards.
• Experience in iGaming or game development.

Would be helpful:

• Good understanding of graphics pipelines and rendering performance.

• TypeScript.

   

Key Responsibilities:

• Lead front-end development for slot games.
• Write, review, and maintain clean, scalable, and efficient code.
• Drive frontend architecture decisions.
• Mentor and support frontend developers in the team.
• Translate game designs, animations, and mechanics into high-quality interfaces.
• Ensure performance and stability across browsers and devices.
• Participate in solution design and architecture discussions.

• Improve frontend development standards and processes.

   

We Offer:

• Opportunity to work remotely.
• Flexible working hours — you choose when to start your day.
• Modern Mac equipment.
• Career growth within a team of iGaming professionals.
• Supportive, transparent team culture with minimal bureaucracy.
• Time-off policy that fits real life (paid vacation, sick leave, public holiday).
• Benefits for employees.

Hello, future colleague!

At DreamPlay, we create pixel-perfect slot games powered by our own engine. We are reinventing the gambling experience by delivering unique, high-quality games to the market.

We are a team of professionals who value quality, ownership, transparency, and collaboration. We believe in a results-driven environment where everyone has the space to grow, contribute, and make an impact.

We are currently looking for a Lead Back-End Developer to join our team.
As a Lead Backend Developer, you will drive backend architecture and support the growth of the backend team.
If you are passionate about building scalable backend systems for gaming products and enjoy solving complex technical challenges, we would love to meet you.

Requirements:
Must have:

• Strong experience with Java.
• Experience with Scala + Akka.
• Experience building high-load backend systems.
• Docker experience.
• Experience with CI/CD pipelines.
• Experience working in the iGaming industry.
• Understanding of slot games architecture.

Would be helpful:

• Experience with Kubernetes (K8s).
• Experience with SBT.
• Experience working with distributed systems.
• English: B1+.

Key Responsibilities:

• Lead backend development and provide technical leadership for backend solutions.
• Design and maintain scalable and reliable backend architecture.
• Write, review, and maintain clean, efficient, and maintainable code.
• Collaborate closely with game developers, frontend engineers, and product teams.
• Participate in architecture discussions and technical decision-making.
• Ensure performance, stability, and scalability of backend services.
• Contribute to improving development processes and engineering standards.
• Estimate tasks and ensure timely delivery of backend features.

We Offer:

• Opportunity to work remotely.
• Flexible working hours — you choose when to start your day.
• Modern Mac equipment.
• Career growth within a team of iGaming professionals.
• Supportive, transparent team culture with minimal bureaucracy.
• Time-off policy that fits real life (paid vacation, sick leave, public holiday).
• Benefits for employees.

As a Senior Flutter Developer, you will lead the development of high-performance, visually appealing, and scalable mobile applications. You will collaborate closely with UI/UX designers, backend developers, and product managers to deliver seamless and engaging user experiences across iOS and Android platforms.

Key Responsibilities

• Develop, and maintain high-quality mobile applications using Flutter.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.
• Mentor and guide junior developers, promoting best practices and code quality.
• Participate in code reviews, troubleshooting, and debugging.
• Keep up-to-date with emerging mobile technologies and frameworks, recommending enhancements to the team.

• Optimize applications for maximum speed, scalability, and maintainability.

   

Requirements

• 5+ years of experience in mobile development, with at least 2+ years in Flutter.
• Strong understanding of Dart, Flutter framework, and mobile design patterns (MVVM, BLoC, Provider, Riverpod).
• Experience building apps for both iOS and Android platforms.
• Knowledge of RESTful APIs, GraphQL, and integrating with backend services.
• Solid understanding of state management, animations, and responsive UI design.
• Familiarity with version control systems (Git) and CI/CD pipelines.
• Excellent problem-solving skills and attention to detail.

• Strong communication skills and ability to work collaboratively in a team.

   

Nice-to-Have

• Experience with native mobile development (Swift, Kotlin/Java).
• Knowledge of Firebase, push notifications, and app analytics.
• Exposure to testing frameworks and automated UI testing.

• Open-source contributions in Flutter or mobile development communities.

   

About the Job

We are seeking a skilled Core Developer (Rust/ C++) for Swarm Robotics & Sensor Control with over 5 years of professional experience to join our dynamic development team. You will play a key role in building and optimizing the core architectures for the real-time control and management of robotic swarms and sensor systems. This position offers the opportunity to work with cutting-edge technologies and contribute to complex, mission-critical systems in a collaborative environment.

What is your Day to Day Mission:

• Design, develop, and maintain robust and scalable systems for swarm control and sensor management.
• Implement efficient communication protocols and real-time processing solutions for robotics.
• Collaborate closely with cross-functional teams to integrate backend components with robotics software and sensor networks.
• Optimize system performance, scalability, and reliability in a distributed robotics environment.
• Solve challenging problems using modern programming languages such as C++ and Rust.

• Participate in code reviews, architecture discussions, and software design decisions.

   

What you bring to the team:

• 5+ years of professional experience in backend development with a strong focus on real-time systems.
• Proficiency in Rust and C++, with a solid understanding of modern software development practices.
• Experience in building and optimizing backend architectures for distributed systems.
• Familiarity with network protocols, multithreading, and low-latency data processing.
• Knowledge of system architecture design, performance optimization, and resource management.

• Ability to work independently, solve complex technical problems, and thrive in a fast-paced startup environment.

   

Nice-to-Have:

• Experience in robotics, swarm control, or sensor integration.
• Familiarity with cloud platforms, Docker, or Kubernetes for scalable deployments.

• Understanding of embedded systems or real-time operating environments.

   

Why Quantum-Systems:

• We Stand with Ukraine
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.
• We promise to be your runway for individual and professional growth.

About the Company

Established in 2004, ALLSTARSIT was founded with a clear vision: to enhance the landscape of global IT employment by bridging the gap between companies and skilled professionals. The core belief was that assembling a team shouldn't be hindered by geographical constraints. Fast forward to the present day, ALLSTARSIT stands as an international outstaffing service provider committed to change the way businesses recruit, compensate, and oversee top talent worldwide. 

With operational hubs scattered across Europe, Asia, and LATAM, and its headquarters situated in San Francisco, US, the company boasts a workforce of over 1,000 adept professionals. Spanning across more than 20 countries, ALLSTARSIT offers a diverse range of skilled employees across various verticals, including AI, cybersecurity, healthcare, fintech, telecom, media, and so on.

About the Project

The client’s company is revolutionizing the way new drugs and vaccines are approved for market by replacing manual processes with deep tech. Their core product, the project, is an AI-powered statistical analysis workspace designed to improve workflows and accelerate regulatory approval processes.
Accurate analysis of clinical research data is critical to helping millions of people receive safe and effective medical treatments faster. The project provides assurance that the data underpinning these analyses are of the highest integrity. By joining the client’s team, you can directly impact the speed at which new medications reach patients—many of whom may be your family or friends. You will also help drive the translation of meaningful ideas into beneficial products with the support of an inclusive and diverse group of highly talented professionals.
We are seeking a highly motivated and experienced Senior Data Engineer to join the client’s team.

Required skills:

• 3+ years of experience in Python development (or 1+ year of Python plus 2+ years in another language)
• 2+ years of experience in production data environments
• Strong experience with modern data engineering tools and libraries (e.g., Pandas, PySpark, SQLAlchemy)
• Hands-on experience with Databricks or other distributed data processing frameworks
• Proficiency in working with structured and semi-structured data from various sources (databases, APIs, files, etc.)
• Experience with Agile methodologies and tools
• Familiarity with data modeling, data warehousing, and performance optimization
• Excellent analytical and problem-solving skills
• Strong English communication skills, both written and verbal
• Team player with strong collaboration and interpersonal abilities

Advantages

• Experience with Databricks or similar platforms for large-scale data processing and analytics, as well as data orchestration tools and MLOps frameworks
• Experience delivering AI-ready datasets and knowledge of AI/ML frameworks
• Proficiency with regular expressions
• Experience with NoSQL databases (e.g., MongoDB)
• Familiarity with cloud services (AWS and/or Azure)
• Hands-on experience with Python testing and debugging tools such as PyTest
• Experience building and maintaining CI/CD pipelines
• Background in the pharmaceutical or life sciences industry
• Bachelor’s degree in Computer Science, Engineering, a related technical field, or equivalent practical experience

Scope of work:

• Design and implement robust, scalable data pipelines and workflows using modern data engineering frameworks
• Collaborate closely with Data Scientists, Analysts, Developers, and Product Managers to support data needs and model deployment
• Take ownership of data quality, data architecture, and production readiness across systems
• Build and optimize data extraction, transformation, and loading (ETL) processes across structured and unstructured datasets
• Develop reusable data processing components and libraries
• Troubleshoot data issues, performance bottlenecks, and maintain high data integrity across environments
• Contribute to the evolution of the client’s cloud-based data infrastructure
• Document data workflows and participate in the development and execution of test strategies for data systems

Workload: full-time/part-time
Location: Israel, Tel Aviv!
Start: in a couple of weeks
English: B2

Company Description
Our company develops advanced AI solutions for life science, pharmaceutical, and biotech organizations. The company helps clients design practical, high-impact AI systems that improve research, development, knowledge management, and business processes. A key focus is building AI Knowledge Libraries that enable companies to structure, connect, and use their organizational knowledge more effectively with AI:

Role Description
This is a remote contract role for an AI Architect. The AI Architect will be responsible for designing and implementing enterprise AI solutions to specific use-cases, with a strong focus on designing AI Knowledge Libraries for companies in the life science, pharmaceutical, and biotech sectors.

Qualifications
Expertise in Architecture and Architectural Design for scalable and efficient AI systemsStrong experience with Microsoft AzureStrong experience with Microsoft 365 Copilot / Copilot StudioExperience designing and implementing enterprise AI solutionsGreat person to discuss on AI strategy, innovation and practical business opportunities

Responsibilities

• Design, develop, and maintain complex applications on the Creatio platform
• Implement and extend business logic using Creatio configuration tools and server-side development
• Develop backend logic using C# and SQL
• Build integrations with enterprise systems via REST / OData APIs and web services
• Implement data models, workflows, and UI components
• Ensure solution performance, scalability, and maintainability
• Review code and contribute to development best practices
• Participate in architecture discussions and technical decision making
• Collaborate with consultants and project leads to translate business requirements into technical solutions
   

Requirements

• 5+ years of experience with Creatio development
• Strong knowledge of Creatio architecture, configuration, and customization
• Strong experience with C#, JavaScript, SQL
• Experience integrating enterprise systems using REST or OData APIs
• Experience with relational databases (MS SQL Server, PostgreSQL)
• Experience with version control systems (Git)
• Understanding of integration patterns and data synchronization
• Experience with CI/CD pipelines and deployment automation
• Ability to design maintainable and scalable solutions
• English B2 or higher. German will be a plus

Meet the YozmaTech

YozmaTech isn’t just another tech company — we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.

Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family — you’ll feel right at home with us.

Our client is a fast-growing product company that helps photographers and creators dramatically accelerate professional post-production workflows — reducing editing time by up to 95%. Their platform processes large RAW photos and videos, interacts with professional creative tools like Lightroom and Premiere (including non-standard integrations and reverse engineering), and delivers advanced, highly polished user experiences relied on by creators worldwide.

You will join a small, highly collaborative core engineering team that is scaling a global product built on modern technologies, complex UI flows, and heavy data processing. The environment is direct, fast-paced, and product-driven, with quick iteration cycles and a strong focus on shipping meaningful results.

Key Requirements:

Frontend:
🔹 Professional experience with Vue.js 3 (at least some hands-on work in a production environment);
🔹 TypeScript, HTML, CSS;
🔹 Experience with React or Angular is a plus, but Vue.js experience is required;

Backend:
🔹 Python (main backend language);
🔹 FastAPI (main backend framework; some services may use other frameworks);
🔹 Experience with AWS is a plus;
🔹 Experience with MongoDB and SQL databases;
🔹 Experience working with microservices architecture;

General:
🔹 Experience working on both frontend and backend (fullstack);
🔹 Previous experience in multiple projects and companies is valued;
🔹 Ability to quickly start contributing without a long onboarding period;
🔹 English — Upper-Intermediate or higher.

Will be plus:
🔹 Experience with Node.js or Python;
🔹 Familiarity with Electron.js;
🔹 Experience with SQL or NoSQL databases;
🔹 Background in handling large media files or integrations with creative software;

What you will do:
🔹 Develop and deliver features end-to-end, including frontend, backend, and database components;
🔹 Work on a web application that interacts with multiple backend services;
🔹 Handle features from initial requirements through to deployment;
🔹 Perform database migrations as needed;
🔹 Participate in clarifying requirements and collaborating with the product team;
🔹 Integrate into a small development squad as the third developer;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview;
🔹 Final interview;
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products — and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining — and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Meet the YozmaTech

YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.

Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family - you’ll feel right at home with us.

Our client builds technology that empowers media companies to strengthen their businesses and deliver better experiences to their audiences. What began as tools to enhance audience engagement has grown into a global operation focused on driving large‑scale video growth for leading media brands. Their machine‑learning‑powered video platform maximizes revenue across web, mobile apps, CTV, and DOOH, giving publishers greater control, efficiency, and transparency.

The platform is fully demand‑agnostic, with supply path optimization at its core, ensuring partners capture more value without unnecessary intermediaries. Guided by a consistent philosophy of putting media companies first, the team acts as a true partner-listening, adapting, and delivering smarter video solutions that evolve with the fast‑changing digital landscape.

Key Requirements:
🔹 Bachelor’s degree in Computer Science, Engineering or equivalent technical field (or 4+ years of equivalent experience);
🔹 5+ years hands-on experience in technical support environment, implementing and debugging JavaScript/HTML/CSS in production environments;
🔹 Solid command of browser DevTools, network-trace analysis and console debugging;
🔹 Experience with version control systems such as Git, and understanding of SQL or ability to query and interpret data sets;
🔹 Ability to document technical issues and solutions clearly and concisely
🔹 Experience working in multicultural environments, particularly with U.S.-based teams, is an advantage;
🔹 Ability to effectively communicate and collaborate remotely across time zones, demonstrate proactive self-management, and maintain strong independent working habits;
🔹 English - Upper-Intermediate or higher.

What you will do:
🔹 Support the seamless onboarding of new clients by managing technical configurations, troubleshooting integration issues, and ensuring smooth implementation;
🔹 Troubleshoot technical implementation issues and meet response time targets;
🔹 Maintain expertise in EX.CO products and features, sharing knowledge and best practices with internal teams;
🔹 Monitor technical performance, identify issues and resolve proactively;
🔹 Write and maintain technical documentation, integration playbooks, and internal knowledge base articles;
🔹 Diagnose and resolve technical issues effectively, collaborating with the engineering and Product teams to address bugs, design, and client requests;
🔹 Manage platform configurations, including content setup, video player settings, and basic advertising integrations;
🔹 Conduct post-launch QA focused on validating technical performance and expected behaviors;
🔹 Perform validation checks on integration files and ensure configuration accuracy across environments;
🔹 Collaborate with developers and product teams to implement and test new integrations, including third-party APIs and SDKs.
🔹 This role follows a hybrid work model with three days in the office. The team works in rotating weekly shifts that align with both U.S. and European time zones. One week you’ll work the early daytime schedule (9:00–18:00 EET), and the next week you’ll switch to the later afternoon–evening shift (13:30–22:30 EET)

Interview stages:
🔹 HR interview;
🔹 Technical & general interview;
🔹 Home assessment;
🔹 HR interview;
🔹 Reference check;
🔹 Offer.

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products - and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining - and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Hello.

We are looking for a Middle+/Senior Node.js Developer to join Ohayu (https://ohayu.com). We are building the easiest way for travelers to stay online anywhere in the world. We’re a fast-scaling B2C mobile + web app (iOS/Android/Web) that lets people buy eSIM data plans in minutes - cheaper than roaming, no SIM shops, no hassle. Thousands of travelers already use Ohayu worldwide, and we’re just getting started.
Our ambition is bigger than eSIM: we’re evolving Ohayu into a full Travel App that makes every journey smoother.

What you’ll do:

This role is for someone who wants real ownership and real product impact.

• Own integrations with third-party APIs (telco/eSIM providers, payments, analytics, etc.) - abstraction layers, reliability, observability, edge cases, scale.
• Shape backend direction: architecture decisions, technical standards, and how we build/ship safely at speed.
• Enable rapid experimentation: implement backend changes for A/B tests and product iterations that directly impact conversion and retention.
• Build and maintain production-grade services: migrations, logging, alerts, uptime, and smooth releases.

What we’re looking for:

• 5+ years of backend with OOP experience
• 5+ years with Node.js + TypeScript
• 2+ years with NestJS
• 5+ years with MySQL / MariaDB / PostgreSQL
• Hands-on production experience: migrations, monitoring/logging, alerts, process managers (pm2/supervisor), incident mindset
• You work independently, communicate clearly, and take responsibility end-to-end
• At least intermediate English level (all work communication is in English)

Nice to have:

• Experience with high-load systems
• Experience supporting A/B testing and experimentation platforms/pipelines

Why to join us:

• Direct product impact: what you ship gets used immediately by real travelers.
• Ownership: you’re not “a contributor,” you’re a builder helping set the backend direction.
• Product engineering culture: we care about UX and conversion as much as we care about clean code.
• Fast pace, real learning: constant iterations, clear feedback loops, real-world constraints.
• Genesis ecosystem: access to strong expertise, resources, and networking.
• Benefits: health insurance, 20 paid vacation days, annual performance review with clear salary progression.

Work format: Possibility to work fully remotely or from our offices in Warsaw, Kyiv or Lviv.

Join us in reshaping the future of connectivity.

ORIL is looking for an experienced Full-Stack Engineer with DevOps skills to support a business-critical aviation operations system. The engineer will be responsible for investigating and resolving critical issues across application, database, infrastructure, and integrations, ensuring the system operates smoothly at all times.

This role focuses on production reliability, incident response, and system stability outside regular working hours. This role requires weekday on-call availability from 7:00 PM to 7:00 AM EET (12:00 PM – 12:00 AM ET). Also the engineer is expected to handle incidents during weekends and holidays when needed, ensuring reliable support coverage for critical system issues. 

What are we looking for?

— 5+ years of experience building production systems.

— Strong Node.js / NestJS backend development skills.

— Experience with Angular frontend development.

— Knowledge of PostgreSQL and Redis.

— Experience with CI/CD pipelines (Azure Pipelines or similar).

— Understanding of DevOps practices and infrastructure troubleshooting.

— Experience supporting production systems and handling live incidents.

— Ability to troubleshoot across code, database, integrations, and infrastructure.

— Strong debugging and problem-solving skills under pressure.

— Upper-Intermediate English (B2+) for communication with international teams.

Nice to have:
— Experience in SRE or production support roles.
— Experience with high-availability or mission-critical systems.
— Experience with WebSockets or real-time applications.
— Experience troubleshooting external API integrations.

What will you do?

— Provide on-call support for production incidents, including emergency fixes.
— Investigate and resolve critical issues affecting system stability.
— Perform incident triage, root cause analysis, and mitigation actions.
— Troubleshoot problems across frontend, backend, database, infrastructure, and integrations.
— Support deployments and infrastructure troubleshooting.
— Collaborate with engineering teams to resolve complex incidents.
— Document incidents and solutions to improve system reliability.

Engagement Model:

— Weekdays 7:00 PM to 7:00 AM EET (12:00 PM – 12:00 AM ET).

— Full weekend and holiday coverage for critical incidents

— Monthly retainer for availability.

— Hourly compensation for actual incident work.

— Long-term engagement (6+ months expected).

If you are ready to work in a role that includes after-hours support and occasional shifts aligned with the ET timezone, we would love to hear from you!