Jobs Backend

987
  • · 128 views · 45 applications · 10d

    Senior Full-Stack Engineer (Backend-Oriented, Node.js) to $5700

    Full Remote · Worldwide · 7 years of experience · English - B2
    Build the real-time AI governance control plane trusted by global enterprises Who we are: Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. ...

    Build the real-time AI governance control plane trusted by global enterprises

    Who we are:
    Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

     

    About the Product:

    You’ll work on a cloud-native AI governance platform designed to intercept, classify, and control high-velocity AI interactions in real time — without revealing the client’s identity.

    The platform analyzes user prompts, AI responses, coding-agent activity, and enterprise search outputs flowing across HTTP streams, IDE extensions, LLM APIs, and internal microservices. It applies need-to-know access filtering, policy transformations, and audit controls within sub-second decision windows, ensuring sensitive knowledge never crosses boundaries it shouldn’t. As enterprises adopt generative AI at scale, traditional access-control models break down. This product introduces a new security layer purpose-built for AI systems, enabling organizations to innovate quickly while maintaining strict governance over their data and models.

    You will be joining a core engineering team that is building a platform with real industry impact — one shaping how AI responsibly integrates into the modern enterprise.

     

    About the Role:
     

    We are looking for a Senior Full-Stack Engineer (Backend-focused) to join a small, high-caliber team developing the core components of this real-time governance system.

    Your primary focus will be backend development using Node.js/TypeScript — implementing scalable services, APIs, and platform features. When needed, you will support frontend development in React to deliver features end-to-end. You will collaborate closely with senior engineers, contribute to technical discussions, and take ownership of delivering reliable, high-quality features in a fast-moving, deeply technical environment.

     

    Why This Role Stands Out:

    • High-impact product defining how enterprises safely adopt AI
    • Real engineering challenges — real-time processing, distributed flows, policy logic
    • Modern tech stack: Node.js, TypeScript, React, PostgreSQL, Docker, cloud-native practices
    • Work alongside experienced engineers and grow your backend expertise
    • Strong ownership opportunities within a compact, highly collaborative team
    • Remote-first environment with strong support and flexibility

     

    What You Bring:

    • 6+ years of professional software development experience
    • 4 years of hands-on experience with Node.js and TypeScript
    • Working knowledge of React and modern frontend development
    • Understanding of backend architecture, APIs, and service-oriented design
    • Experience with relational databases (PostgreSQL or similar)
    • Familiarity with containerized and cloud-native environments
    • Strong communication skills and ability to collaborate in a distributed team
    • Ability to operate in a dynamic, fast-paced product environment
    • Excellent English communication skills (written and spoken)

     

    Nice to Have:

    • Experience with CI/CD pipelines (GitHub Actions or similar)
    • Experience with Python and/or Go
    • Production experience with TypeScript-based backend systems
    • Exposure to LLM/AI applications (LLM APIs, vector DBs, orchestration frameworks)
    • Experience integrating ML/AI models into production
    • Background in B2B or security-focused products
    • BSc in Computer Science or related field

     

    Why Us?

    We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

    We provide full accounting and legal support in all countries we operate.

    We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

    We offer a highly competitive package with yearly performance and compensation reviews.

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  • · 78 views · 12 applications · 10d

    Middle/Senior Python Developer

    Full Remote · Countries of Europe or Ukraine · 5 years of experience · English - C1
    We're hiring RL Environments Engineers to design and build MLE/SWE environments that deliver high-quality, diverse tasks with minimal supervision. You will target a specific language model, meet a defined difficulty distribution, and deliver about one...

    We're hiring RL Environments Engineers to design and build MLE/SWE environments that
    deliver high-quality, diverse tasks with minimal supervision. You will target a specific language
    model, meet a defined difficulty distribution, and deliver about one task every 10 hours. 

    The goal is to develop RL environments that teach LLMs low-level programming, kernel development, and CPU/GPU optimization.
    The job requires independence and engineering responsibility.

    Requirements:
    - Strong Python (engineering code, not just notebooks);
    - Real-world experience with LLM/GenAl in production;
    - Experience with end-to-end pipelines;
    - Docker and production thinking;
    - Ability to handle expected throughput and respond quickly;
    - Candidates with experience in one or more of the following areas are welcome;
    - Memory architecture and execution models;
    - Multithreading and concurrency;
    - JIT/AOT compilation (Triton, LLVM, MLIR, TVM, etc.);
    - Kernel frameworks (CUDA, CUTLASS, HIP, ROCm);
    - Modern C++ and low-level optimization;
    - PyTorch custom operators and backend integrations;
    - Mixed/low-precision computing;
    - English level C1/C2.

    Responsibilities:
    - Design and development of environments and tasks;
    - Working with a given model and complexity distribution;
    - Approximately 1 task per ~10 hours;
    - Quickly make edits based on client feedback.

    It will be a plus:
    - Experience with RL environments or evaluation frameworks;
    - Work in regulated or high-stakes domains;
    - Experience with MLOps, CI/CD, and monitoring;
    - Systems background (C++ / Rust / Java / Scala);
    - Understanding of RL, bandits, and agent systems.

    Working conditions:
    - Remote, contract model;
    - Project duration: 1 year or more;
    - At least 4 hours of PST (UTC-8, the winter time zone used on the West Coast of the US, Canada, and Mexico);
    - Quick onboarding, start from day one.

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  • · 167 views · 46 applications · 10d

    Middle/Senior Backend Engineer (Node.js)

    Full Remote · EU · Product · 4 years of experience · English - B2
    About Bitmedia Labs Bitmedia Labs - an international product IT company, has been in the industry since 2014, effectively functioning on a worldwide scale with a crew of 130+ ambitious and highly skilled professionals, creating successful projects in...

    About Bitmedia Labs
    Bitmedia Labs - an international product IT company, has been in the industry since 2014, effectively functioning on a worldwide scale with a crew of 130+ ambitious and highly skilled professionals, creating successful projects in domains such as online advertising systems for the crypto space, blockchain games, and NFT products.

    We are currently looking for an experienced engineer to join our R&D project, contributing to cutting-edge development and innovation within the company.

    Responsibilities:
     

    • Develop scalable marketplace platforms and backend systems from scratch with deep AI/LLM integration
    • Lead backend development using Node.js and TypeScript, implementing RESTful APIs, microservices, and background workers
    • Build and integrate RAG (Retrieval-Augmented Generation) solutions with vector databases for intelligent search and recommendations
    • Create AI agents and autonomous systems using LangChain/LangGraph frameworks
    • Write Python code when needed for AI/ML integrations, data processing pipelines, and LLM agent implementations
    • Develop frontend solutions and MVPs when required, implementing UI components and user interfaces
    • Integrate and manage databases (SQL and NoSQL), implement caching strategies, and optimize query performance
    • Mentor and guide junior and mid-level developers through code reviews, pair programming, and technical discussions

       

    Required Qualifications:
     

    • 4+ years of professional Node.js development experience and 3+ years with TypeScript
    • Expert-level knowledge of JavaScript fundamentals (event loops, closures, promises, async/await) and asynchronous programming patterns
    • Deep understanding of Node.js frameworks (Express.js, NestJS, Fastify) and architectural patterns
    • Strong experience with SQL (PostgreSQL, MySQL) or NoSQL databases (MongoDB, Redis)
    • Strong understanding of system design principles, design patterns, and software architecture best practices
    • Practical experience building AI agents beyond ChatGPT usage - demonstrated through pet projects or production work
    • Willingness and ability to learn and write Python code when needed for AI/ML integration
    • Working knowledge of front-end fundamentals (HTML5, CSS3, JavaScript) and ability to implement UI solutions when required
    • Strong strategic thinking with ability to align technical solutions with business objectives
    • Proven technical leadership and mentoring experience with ability to guide and develop team members
    • Knowledge of Docker containerization, CI/CD pipelines (GitHub Actions, GitLab CI), and DevOps practices
       

    Preferred Qualifications:
     

    • Working knowledge of AI frameworks (LangChain, LangGraph) for building autonomous agents and RAG applications
    • Experience with vector databases (Pinecone, Weaviate, Qdrant, ChromaDB) and embeddings implementation
    • Familiarity with at least one modern front-end framework (React, Vue.js, Angular)
    • Experience with cloud platforms (AWS, GCP, Azure) for application deployment and AI/ML services
    • Familiarity with observability tools (DataDog, New Relic, ELK stack) and monitoring practices
       

    Hiring process: 
     

    • Intro call with a Recruiter - Technical Interview with the Hiring team - Final Interview with the CEO - Сollection of recommendations - Offer.
       

    We offer:

    • Flexible work environment - you can work remotely;
    • The 8-hour working day with a flexible schedule;
    • Competitive salary based on your experience;
    • Regular performance review and annual salary review;
    • Paid sick leaves, vacation, and holidays;
    • Professional development tools (reimbursement of educational courses or workshops, conferences around the world);
    • Ambitious team with transparent communication and a friendly atmosphere, no micromanagement;
    • Apple equipment;
    • Memorable gifts for holidays.


     

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  • · 96 views · 26 applications · 10d

    Middle/Senior Python Developer

    Full Remote · Ukraine · 5 years of experience · English - B2
    Description We have an exciting opportunity for an experienced and passionate Python developer to join our growing technology team, focusing on building technology products for some of the world’s leading media agencies. The successful candidate will work...

    Description

    We have an exciting opportunity for an experienced and passionate Python developer to join our growing technology team, focusing on building technology products for some of the world’s leading media agencies. The successful candidate will work alongside developers and other members of the scrum teams.

     

    About the division:

    Our client is a part of global data products and technology company. Where they are on a mission to transform marketing by building the fastest, most connected data platform that bridges marketing strategy to scaled activation.

     

    They work with various agencies and clients to transform the value of data by bringing together technology, data and analytics capabilities. They deliver it through their own AI-enabled media and data platform for the next era of advertising.

     

    They are endlessly curious. Team of thinkers, builders, creators and problem solvers are over 1,000 strong, across 20 markets around the world.

     

    Requirements

    • 5+ years of web development experience
    • Strong knowledge of Python
    • Strong OOP knowledge
    • Experienced in REST API
    • Good understanding of complex web services
    • Hands-on experience in using Docker and GoogleCloud will be a plus
    • Intermediate English is a must

     

    Job responsibilities

    • Developing new modules and features
    • Fixing defects
    • Writing unit tests
    • Performing code review
    • Testing the code on all levels (unit, integration, system, e2e)
    • Take part in calls with customer
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  • · 113 views · 7 applications · 10d

    Trainee Node.js Developer

    Office Work · Ukraine (Lviv) · English - B1
    We are looking for a talented Trainee Node.js developer to join our team and develop innovative projects using JavaScript, Node.js, and different databases. Ideally, you need to have a passion for programming, great soft skills, and good English. It is...

    We are looking for a talented Trainee Node.js developer to join our team and develop innovative projects using JavaScript, Node.js, and different databases.

    Ideally, you need to have a passion for programming, great soft skills, and good English.

     

    It is a full-time position in our Lviv office.

    Requirements:

    - Solid understanding of Node.js

    - Proficiency with JavaScript

    - Working with SQL/NoSQL databases: Redis, MongoDB, and MSSQL

    - Knowledge of OOP

    - English level: Intermediate+ (written, spoken)

    - Desire to work and study new technologies, approaches, and best practices

    - Attentive to details

     

    Responsibilities:

    - Write clean and maintainable code using Node.js

    - Testing modules and integration
    - Development of the server part of the application

    - Implement back-end functionality according to requirements

    - Staying current on new technologies and best practices

    - Communicate with the customer and team members

     

    We offer:

    - IT Club membership

    - 18 days of vacation + 8 days of paid state holidays

    - Health insurance

    - Compensation for: health insurance, educational courses, certificates and sport activities

    - Mentorship program

    - Reading club
    - Cozy and pet-friendly office

    - Weekly sweets & fruits office days

    ▪️ Office relax zone with PS4, VR, table games, table tennis, aero hockey, mini football table, and gymnastic ladder.

     

    We are looking for a team player!

    Are you interested? We would be glad to receive your CV.

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  • · 218 views · 15 applications · 10d

    Middle Golang Engineer

    Full Remote · Ukraine · 4 years of experience · English - B2
    As a Software Engineer, you will play a critical role in designing, developing, and maintaining functionality of one of our flagship products. You will work closely with other engineers across the company, adhering to industry best practices. Your...

    As a Software Engineer, you will play a critical role in designing, developing, and maintaining functionality of one of our flagship products. You will work closely with other engineers across the company, adhering to industry best practices. Your expertise in building cloud-ready products will be instrumental in driving successful outcomes.

     

    The team is integrated and allocated in Poland, Ukraine, United Kingdom and India. Team members use GitHub Issues to work with backlog and prioritize items. Communication mainly consists of daily meetings and interpersonal communication via Slack and Microsoft Teams. We’re following the Scrum process and practicing the Agile Way of Working in close, day-to-day collaboration with each other.

     

    Technologies and Tools

    Backend Golang

    Frontend Typescript, JavaScript, HTML/CSS

    Testing Playwright with TypeScript

    Databases MS SQL Server, PostgreSQL

    Cloud Platform AWS, Azure

    Repository GitHub

    Tools GitHub Actions, GitHub Issues, Docker, Postman, Terraform, Playwright

     

    Responsibility

    • Design, develop, test, and maintain essential software systems using Go (Golang)
    • Implement continuous integration/continuous deployment (CI/CD) pipelines for automated testing, build, and deployment processes
    • Collaborate with technical product managers, designers, and other engineers to identify system requirements and develop technical solutions
    • Develop API-based interfaces for our products, ensuring high quality standards and compliance with industry regulations
    • Participate in code reviews, provide constructive feedback, and improve the overall quality of our engineering output
    • Troubleshoot complex issues using log analysis, profiling tools, and collaborative debugging techniques
    • Stay up to date with the latest features, libraries, and best practices; apply this knowledge to drive innovation within our engineering team
    • Take ownership of outcomes, not just output
    • Be proactive and propose reasonable decisions
    • Be flexible and able to align with priorities coming from the business

       

    Qualifications and Skills

    • 4+ years of professional experience in developing software using Go (Golang)
    • Proficiency in writing high-quality, readable, and maintainable code using Go
    • Experience designing and developing RESTful APIs, microservices architectures, and event-driven systems
    • Familiarity with cloud platforms (Azure or AWS), containerisation tools (e.g. Docker), and orchestration frameworks (e.g. Kubernetes)
    • Experience working with relational databases, caching layers, and messaging queues
    • Proven experience in testing principles and practices, applying this knowledge to drive innovation within our Engineering team
    • Experience with Agile development methodologies (Scrum, Kanban).
    • Proven experience working in agile teams with short development cycles (Scrum, Kanban)
    • Good communication and interpersonal skills
    • Upper-Intermediate English level or higher (both verbal and written)

       

    Engineering Practices

    • Agile Methodology
    • Code Review
    • CI/CD
    • Containerization

       

     We offer

    • Work your way — anywhere, anytime. Our remote-first approach lets you choose where and how you work best!
    • Experience working with diverse teams and gaining international expertise
    • A friendly, supportive team and an enjoyable work environment where your ideas matter
    • A chance to work on exciting, challenging projects using cutting-edge technologies that make a real impact
    • Comprehensive health insurance, corporate psychologist access, and partial sports activity coverage
    • Free training programs, reimbursement for certifications, and access to online learning platforms to fuel your growth
    • Free group English classes and discounted individual lessons
    • Paid vacation, public holidays, and sick leave are fully covered by Forte Group
    • Referral bonuses, regular performance reviews, and full support for business trips
    • Corporate events and holiday presents

     

    Join a team that invests in your well-being, growth, and success!

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  • · 206 views · 18 applications · 10d

    Junior Full-stack Developer (Node.js)

    Office Work · Ukraine (Lviv) · Product · 1 year of experience · English - None Ukrainian Product 🇺🇦
    Join us in shaping the future of work. Spacebring is a Ukrainian product company backed by Google. It transforms coworking space operations by eliminating bottlenecks, automating bookings, billing, and daily tasks. Today, Spacebring powers hundreds of...

    Join us in shaping the future of work.

     

    Spacebring is a Ukrainian product company backed by Google. It transforms coworking space operations by eliminating bottlenecks, automating bookings, billing, and daily tasks. Today, Spacebring powers hundreds of spaces across 55+ countries — including well-known names like Kooperativ, Creative States, Diia Business, Google for Startups, Impact Hub, and many more.

     

    We are looking for a skilled junior software engineer to work with our product team. A passion for programming and excellent problem-solving skills are a must.

     

    Our tech stack: stackshare.io/spacebring/spacebring

     

    Required

    • 1+ year of experience with JavaScript, Node.js.
    • Experience with React.
    • Good problem-solving skills.
    • Good knowledge of SQL.
    • Good understanding of REST API.
    • Good knowledge of Git.
    • Technical education.

     

    As a plus

    • Knowledge or experience in functional programming.
    • Knowledge or experience using AWS Lambda, DynamoDB, API Gateway, EventBridge, and CloudWatch.
    • Experience with React Native.

     

    We offer

    • Work on a cutting-edge product and see your impact.
    • Learn from a team of experts eager to share knowledge.
    • Career growth in a fast-paced company.
    • Opportunity of hybrid work and flexible schedule.
    • Due vacation & sick leave.
    • Regular salary reviews and stock options.
    • Employee benefits: language courses, skill development, gym.
    • Team retreats, camps, offsites, and social events.
    • Comfortable coworking space in central Lviv.
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  • · 79 views · 12 applications · 10d

    Senior Java Developer

    Full Remote · Ukraine · 5 years of experience · English - B2
    Project Description: One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain. Product being developed is a cloud solution for interpretation...
    • Project Description:

      One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
      Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
      Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
      Work supposes close cooperation with Customer team located in Houston and following Agile principles.
      Our team is senior, supportive and friendly.
       

    • Responsibilities:

      • Collaborate closely with geophysicists, data scientists, and software engineers to
      translate scientific domain requirements into robust on-prem or Cloud software
      solutions.
      • Design, develop, and maintain high-performance applications for geophysical and
      geological data analysis, interpretation and visualization (e.g., seismic, horizon,
      fault, velocity model, etc.)
      • Present architectural designs and technical proposals to the architecture review
      board.
      • Ability to break down development tasks and lay out clear implementation
      roadmaps.
      • Implement and optimize computation algorithms
      • Design and develop both thin and thick client applications that interact with cloud-
      based microservices.
      • Ensure high code quality through unit testing, code reviews, security hardening and
      continuous integration with other domain tools
      • Provide technical support and lead user troubleshooting sessions to resolve issues
      and ensure smooth operation of DSG application.
      • Mentor junior developers and actively contribute to architectural and
      implementation decisions.
      • Embrace Agile/Scrum methodologies, delivering and demonstrating working
      solutions at the end of each sprint
      • Stay current with emerging technologies and trends in geophysical computing and
      software development.
       

    • Mandatory Skills Description:

      5+ years in Java development
      Strong Java Core knowledge
       

    • Nice-to-Have Skills Description:

      Experience with desktop development (Swing, SWT or Eclipse RCP)
      C++ development
      Practical experience with Eclipse RCP framework
      OSGI knowledge is a plus
      Oil&Gas domain experience is a plus

    More
  • · 24 views · 3 applications · 10d

    Senior Visualization Application Developer (Java or C++, OpenGL)

    Full Remote · Ukraine · 5 years of experience · English - B2
    Project Description: The SEM product is embedded within the Geosciences Suite of Applications. This application has multiple views consisting of both 2D and 3D visualizations. The current data visualization is not sufficient for what we would like it to...
    • Project Description:

      The SEM product is embedded within the Geosciences Suite of Applications. This application has multiple views consisting of both 2D and 3D visualizations. The current data visualization is not sufficient for what we would like it to be. This role is expected to work with the lead and the product owner to understand the current shortcomings, investigate and research potential solutions, propose these solutions to the teams, and then work on the implementation of the agreed upon work. To get to this stage, the developers will also need to learn the inner workings of the visualization framework within Geoscience.

    • Responsibilities:

      • Design, develop, and maintain graphics-intensive modules within the Geoscience platform using Java and OpenGL.
      • Implement advanced 2D and 3D visualization features for seismic, geological, and geospatial data.
      • Optimize rendering performance and ensure cross-platform compatibility, particularly in Linux environments.
      • Collaborate with geoscientists and software engineers to translate domain-specific requirements into technical solutions.
      • Participate in code reviews, testing, and documentation to maintain high-quality software standards.
      • Stay updated with the latest developments in graphics technologies and geoscience applications.

    • Mandatory Skills Description:

      • Bachelor's or Master's degree in Computer Science, Geoscience, or a related field.
      • 5+ years of professional experience in Java OR C++ development with a focus on graphics programming.
      • Proficiency in OpenGL and related graphics libraries for rendering complex datasets.
      • Strong experience working in Linux environments, including shell scripting and system optimization.
      • Excellent problem-solving skills and the ability to work collaboratively in a multidisciplinary team.

    • Nice-to-Have Skills Description:

      • Experience with geoscience software platforms.
      • Familiarity with geoscience data formats and visualization techniques.
      • Knowledge of additional programming languages such as Python, Java.
      • Understanding of GIS technologies and spatial data analysis.
      • Experience with agile development methodologies and version control systems like Git

    • Languages:
      • English: B2 Upper Intermediate
    More
  • · 448 views · 68 applications · 10d

    Full Stack Node.js developer

    Full Remote · Ukraine · Product · 1 year of experience · English - B1
    Skills Commercial experience in software development projects Working experience with Next.js, React, Tailwind, PostgreSQL, Prisma Strong knowledge of JavaScript, Data Algorithms and Structures Hard-working, smart, proactive, goal oriented, open in...

    Skills

    • Commercial experience in software development projects
    • Working experience with Next.js, React, Tailwind, PostgreSQL, Prisma
    • Strong knowledge of JavaScript, Data Algorithms and Structures
    • Hard-working, smart, proactive, goal oriented, open in communication, not afraid to voice your own opinion
    • Willing to take part in business and design decisions and analysis
    • Experience with Python - preferable
       

    Do not hesitate to apply if you are missing specific experience.

     

    We Offer

    • WFH and flexible working hours

     

    Requirements

    • Develop new features and improve existing ones for Valid-X 's products.
    • Proactively take part in design and marketing discussions, take responsibility for products from the technology side.

       

    Project description

    • Social wiki platform website 
    • Tech stack: Next.js, Node.js, PostgreSQL, Prisma, Vercel
    • Other projects

       

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  • · 423 views · 90 applications · 10d

    Senior Laravel Developer (with Node.js/NestJS)

    Full Remote · Countries of Europe or Ukraine · Product · 7 years of experience · English - B1
    We are an international developer of IT products for medicine and related services. Our products are used by more than 5,000 doctors and more than 1,000 clinics in Europe. The goal is to attract the largest possible audience to the main projects -...

    We are an international developer of IT products for medicine and related services. Our products are used by more than 5,000 doctors and more than 1,000 clinics in Europe.

    The goal is to attract the largest possible audience to the main projects - clinics and doctors up to 3 million. As well as expanding unique traffic to 10 million per day until 2025. We are looking for Senior Back-End Developer with 7+ years of Laravel development experience. Good experience with Node.js (NestJS) will be an advantage.

    Must-have skills are:
    - Laravel (7+ years).
    - Experience of building highload applications.

    - Deep expertise in application security, including secure architecture design and protection against common vulnerabilities.

    - Experience in SaaS platform design and development:

    • multi-tenant architecture (tenant data isolation);
    • subscriptions/plans, limits, billing logic (at least at the structure level).

    - Integration with external services via OAuth2/OIDC.
    - Practical working experience with sensitive personal data and GDPR/DSGVO requirements.
    - Understanding of WebRTC (ICE/STUN/TURN), room/session management.
    - Experience with Linux (shell/bash).

    Will be an advantage if you have (it's just a bonus skills, not mandatory):
    - Experience with Microsevices.
    - Experience with Node.js (NestJS).
    - Experience with service infrastructure.
    - Understanding of front-end.
    - Understanding of DICOM/DICOMweb (QIDO‑RS/WADO‑RS/STOW‑RS).
    - Design of storage/access to results of researches (PACS-like scenarios, object storage).

     

    What we offer:
    - Paid holiday for 28 working days.
    - Transparent incentive system.

    Working with us means:
    - Unique technological and innovative projects.
    - Gaining experience in modern western world practices in security, scalable architecture, etc.
    - In-depth knowledge of telemedicine.
    - Working with Big data, high load, distributed computing and data buses.
    - Socially important projects.
    - Opportunity to influence both technology and product solutions.
    - Profitability and stability of a large European company.

    More
  • · 93 views · 6 applications · 10d

    Full-Stack Developer CRM Creatio

    Office Work · Ukraine (Kyiv) · Product · 3 years of experience · English - B1 MilTech 🪖
    Quantum Systems next-generation unmanned solutions across air, land, and sea. From advanced aerial drones to underwater and ground platforms, our systems combine cutting-edge hardware with AI-driven software for seamless control and real-time data...

    Quantum Systems next-generation unmanned solutions across air, land, and sea. From advanced aerial drones to underwater and ground platforms, our systems combine cutting-edge hardware with AI-driven software for seamless control and real-time data insights. Trusted by defense, security, and public sector clients worldwide, we redefine mission versatility and performance.

    Quantum-Systems is a strong supporter of Ukraine and has it’s local Ukrainian office since 2022.

    As Full-Stack Developer CRM Creatio (.NET), you will be responsible for developing, maintaining, and optimizing business-critical solutions on the Creatio platform. You’ll design and implement custom business processes, build integrations with external systems, and adapt the platform to meet evolving business needs—ensuring our internal systems support mission-critical operations with the same precision and reliability as our unmanned solutions.
     

    What is your Day to Day Mission:

    • Develop and customize Creatio solutions: build functional modules, business processes, and user interfaces
    • Create integrations with external systems: implement REST/SOAP APIs and custom business logic using C# and JavaScript
    • Design and optimize system architecture: contribute to technical decisions and improve existing solutions
    • Manage data and databases: work with MS SQL/Oracle/PostgreSQL to ensure smooth data operations
    • Collaborate and support: work with cross-functional teams and maintain implemented solutions
       

    What you bring to the team:

    • Hands-on experience with Creatio CRM/BPM platform
    • Strong .NET (C#) and JavaScript development skills
    • Experience with relational databases (MS SQL/Oracle/PostgreSQL)
    • Knowledge of REST/SOAP integrations and business process modeling (UML, BPMN)
    • Git version control experience
    • Independent, responsible, and results-oriented
    • English B1
       

    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.
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  • · 33 views · 3 applications · 10d

    Senior Scala Engineer (Scala / Spark, Azure, Databricks)

    Full Remote · Countries of Europe or Ukraine · 5 years of experience · English - C1
    We are looking for a Senior Scala Engineer to join a data-driven engineering team working on large-scale distributed data processing platforms. The role focuses on building, optimizing, and maintaining high-performance data pipelines using Scala, Apache...

    We are looking for a Senior Scala Engineer to join a data-driven engineering team working on large-scale distributed data processing platforms. The role focuses on building, optimizing, and maintaining high-performance data pipelines using Scala, Apache Spark, and Databricks within a Microsoft Azure cloud environment.

    You will work closely with data engineers, architects, and product teams to deliver reliable, scalable solutions that process massive volumes of data and support business-critical analytics and decision-making.

     

    Details

    Location: Remote 

    Employment Type: Full-time

    Start Date: ASAP

    Language Requirements: English — Upper-Intermediate or higher

     

    Key Responsibilities

    Design, develop, and maintain scalable data processing solutions using Scala and Apache Spark

    Build and optimize ETL / ELT pipelines on Databricks

    Work with large datasets, ensuring performance, reliability, and fault tolerance

    Deploy and operate data workloads in Azure (ADLS, Azure Data Factory, Azure SQL, etc.)

    Collaborate with data architects on data modeling and pipeline design

    Optimize Spark jobs for cost, performance, and scalability

    Implement best practices for data quality, monitoring, and logging

    Participate in code reviews, technical discussions, and architectural decisions

    Troubleshoot and resolve production data issues

     

    Requirements

    Strong hands-on experience with Scala in production environments

    Solid expertise with Apache Spark (batch and/or streaming)

    Proven experience working with Databricks

    Experience with Microsoft Azure data services

    Strong understanding of distributed systems and data processing concepts

    Experience with SQL and data warehousing concepts

    Familiarity with CI/CD pipelines and version control (Git)

    Ability to work independently and take ownership of complex components

    Strong communication skills and ability to collaborate in cross-functional teams

     

    Nice to Have

    Experience with Spark Structured Streaming

    Knowledge of Delta Lake

    Experience with data governance and security in cloud environments

    Background in analytics, fintech, AdTech, or large-scale enterprise data platforms

    Exposure to Infrastructure-as-Code (Terraform, ARM, Bicep)

     

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  • · 83 views · 7 applications · 10d

    Senior Node.js Engineer (Poland)

    Full Remote · Poland · 5 years of experience · English - C1
    Company is looking for a Senior Backend Engineer to help build the infrastructure that secures the world’s software supply chains. You’ll work closely with top-tier engineers to design and ship high-performance, secure systems at scale. This role is a...

    Company is looking for a Senior Backend Engineer to help build the infrastructure that secures the world’s software supply chains. You’ll work closely with top-tier engineers to design and ship high-performance, secure systems at scale.

    This role is a great fit for someone who thrives in fast-moving environments, enjoys solving deep technical challenges, and wants their work to have real impact.

        Responsibilities

    • Design, build, and maintain scalable backend services and APIs
    • Develop reliable, secure, and high-performance systems in a production environment
    • Work with SQL and NoSQL databases to support application needs and performance goals
    • Collaborate with engineers to design and improve microservices - based architecture
    • Contribute to clean, maintainable codebases and strong engineering standards
    • Troubleshoot and resolve complex issues across services and infrastructure

       

      Requirements

    • Bachelor’s degree in Computer Science or a related field
    • 5+ years of backend development experience building scalable applications
    • Strong proficiency in Node.js
    • Solid experience with SQL and NoSQL databases
    • Familiarity with cloud services and microservices architecture
    • Excellent problem-solving skills and a commitment to clean, maintainable code
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  • · 171 views · 53 applications · 10d

    Senior Full Stack PHP Developer (Symfony)

    Full Remote · Worldwide · 5 years of experience · English - B1
    We are currently looking for a Senior Full Stack PHP Developer to join a professional German-based product company team that designs innovative eHealth solutions for hospitals. You will work on a stable healthcare product, contributing to backend...

    We are currently looking for a Senior Full Stack PHP Developer to join a professional German-based product company team that designs innovative eHealth solutions for hospitals.

    You will work on a stable healthcare product, contributing to backend architecture and supporting frontend functionality where needed.

     

    Qualifications:

    • 5 years of experience with PHP development (8.4 is used)
    • 3 years of experience with Symfony 4 or higher (6.4 is used)
    • Experience with Doctrine, MariaDB
    • Experience with Twig
    • Experience with REST API
    • Experience with Linux/Debian
    • Knowledge of JavaScript, jQuery (up to 10–20% of tasks)
    • Knowledge of SASS
    • Good English language skills both written and spoken

     

    Nice to have:

    • Experience with Cypress
    • Experience with Unit tests

     

    Your tasks:

    • Develop top-notch and maintainable software solutions, implementing modern engineering practices to ensure high product quality
    • Engage in technical discussions to identify the best solutions and proactively propose innovative ideas
    • Collaborate effectively with team members and management

     

    What you can expect from us:

    • Flexible working hours and a healthy work-life balance
    • 24 paid vacation days per year + 11 public holidays + paid sick leave
    • Fully remote cooperation (Ukraine or any EU country)
    • PE accounting support (Cooperation is possible via Ukrainian PE (FOP) only)
    • Modern equipment and a powerful laptop
    • Flat structure with short decision-making cycles
    • Direct collaboration with a German product company
    More
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