Jobs Node.js

155
  • Β· 89 views Β· 31 applications Β· 2d

    Senior Node.js Developer (Fintech Project)

    Full Remote Β· EU Β· 5 years of experience Β· English - B2
    We are seeking a highly skilled Node.js expert, who excels as a collaborative team member. The role goes beyond coding, encompassing responsibilities such as handling feature aspects, specifications, technical design, development, testing, documentation,...

    We are seeking a highly skilled Node.js expert, who excels as a collaborative team member. The role goes beyond coding, encompassing responsibilities such as handling feature aspects, specifications, technical design, development, testing, documentation, and maintenance.

    Customer:

    Our client has rapidly become one of Europe’s most swiftly expanding FinTech companies. They oversee all aspects of financial operations, from generating virtual cards to facilitating wire transfers and maintaining customer account balances. As a payment institution, our client provides a platform that integrates financial services into its product, offering features such as account management, card payments, bank transfers, and additional services.

    Requirements:

    • Over 5 years of experience in Back-end software development
    • At least 3 years of experience with TypeScript
    • Over 4 years of experience working with Node.js
    • Strong experience in designing distributed and secure systems
    • Good Front-end development skills
    • Good understanding of microservices architectures
    • Experience in designing, building, and maintaining APIs
    • Experience in building and consuming REST and/or GraphQL APIs
    • Familiarity with DevOps practices
    • Strong experience working with AWS
    • Good knowledge of testing best practices
    • At least an Upper-Intermediate level of English

    Responsibilities:

    • Design and implement large-scale software solutions and components using multiple technologies, with a primary focus on React and Node.js
    • Keep consistently high level of quality throughout all stages of the development
    • Communicate effectively to actively collaborate with the team and get context for complex tasks
    • Follow best engineering practices and company and client guidelines
    • Play supervisory, advisory, and coaching roles for less-experienced engineers on the team
    • Promote clean code and design patterns and principles

     

    More
  • Β· 125 views Β· 23 applications Β· 2d

    Senior Backend Developer (Node.js) to $3800

    Full Remote Β· Countries of Europe or Ukraine Β· 4 years of experience Β· English - B2
    About Us: LineUp is a fast-growing IT outsourcing company with 13 years of experience. We are currently looking for a Senior Backend Develope to join a long-term product project. You will become part of the Smart City ecosystem - a large-scale software...

    About Us:

    LineUp is a fast-growing IT outsourcing company with 13 years of experience. We are currently looking for a Senior Backend Develope to join a long-term product project.

     

    You will become part of the Smart City ecosystem - a large-scale software product for the Middle East market. This is a fully agile, product-oriented environment with real users and a tangible impact on urban infrastructure.

     

    Key Responsibilities:

    • Architect and develop robust backend applications using Node.js and NestJS in a monorepo and microservices environment.
    • Design, implement, and manage highly scalable database solutions using PostgreSQL (AWS RDS) and caching strategies with Redis.
    • Develop and maintain integrations with various AWS services including SQS, S3, Lambda, IAM, System Manager, EC2, and EKS/ECS for cloud-native applications.
    • Manage and optimize containerization and deployment processes with Docker, including building and pushing to registries, and implementing CI/CD pipelines using GitLab runners.
    • Implement monitoring and observability using Prometheus and Grafana to ensure system reliability and performance.
    • Collaborate with stakeholders to gather business requirements and translate them into technical solutions, driving discussions at the architecture and implementation levels.
    • Lead troubleshooting and debugging efforts to resolve complex backend issues and optimize system performance.
    • Stay current with the latest technologies and best practices, and promote continuous learning and self-development within the team. Mentor other team members, providing guidance and sharing your knowledge.
    • Participate in the agile development process, contributing to scram events, fostering a collaborative and cross-functional team environment.
    • Development and maintenance of a high-level engineering culture within the team.

    Qualifications:

    • Minimum of 5 years of experience in backend development with strong proficiency in Node.js, NestJS, and related technologies.
    • Expertise in building and managing microservices architectures and a monorepo setup.
    • Extensive experience with PostgreSQL (AWS RDS), Redis, and other backend data storage and caching technologies.
    • Strong proficiency in AWS cloud services including but not limited to SQS, S3, Lambda, IAM, EC2, and EKS/ECS.
    • Solid understanding of Docker, CI/CD pipelines, and experience with GitLab runners.
    • Experience with monitoring tools such as Prometheus and Grafana.
    • Proven ability to document backend architectures, designs, and processes clearly and comprehensively.
    • Excellent problem-solving skills and attention to detail, with a passion for creating high-quality, performant code.
    • Ability to work effectively both independently and as part of a team in an agile environment.
    • Strong communication skills with the ability to interact professionally with stakeholders at all levels.
    • English at Upper-Intermediate level and above.

    What We Offer:

    • A collaborative and innovative work environment.
    • Professional development opportunities.
    • The chance to work on exciting and challenging projects.
    • A supportive company culture.
    More
  • Β· 60 views Β· 10 applications Β· 3d

    Senior Backend Engineer (Blockchain/Crypto)

    Full Remote Β· Countries of Europe or Ukraine Β· 7 years of experience Β· English - B2
    The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin. We are looking for a Senior Backend Engineer with strong expertise in blockchain and crypto infrastructure to design, build, and scale...

    The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

    We are looking for a Senior Backend Engineer with strong expertise in blockchain and crypto infrastructure to design, build, and scale high-performance backend systems interacting with EVM-based networks. This role focuses on blockchain integrations, transaction processing, distributed systems, and secure financial infrastructure at global scale.


    Responsibilities:

    • Design, build, and maintain scalable backend services using Node.js (JavaScript/TypeScript)
    • Develop and optimize blockchain integrations with EVM-compatible networks
    • Implement Web3-based interactions (smart contract calls, transaction signing, event indexing)
    • Build secure services for transaction processing, wallet operations, and balance tracking
    • Integrate with RPC providers, blockchain nodes, and third-party crypto services
    • Design event-driven and distributed architectures for high-load financial systems
    • Optimize gas usage, transaction batching, and on-chain/off-chain communication
    • Implement monitoring, logging, and alerting for blockchain infrastructure
    • Ensure security best practices in key management, signing flows, and API protection
    • Write production-grade, well-tested code (unit, integration, load tests)
    • Collaborate with product, DevOps, and security teams in a fully remote environment

       

    Requirements:

    • 7+ years of backend development experience
    • Strong proficiency in JavaScript / TypeScript
    • Deep experience with Node.js in production environments
    • Hands-on experience with Web3 libraries (ethers.js, web3.js, viem, etc.)
    • Strong understanding of EVM architecture and smart contracts
    • Experience designing scalable distributed systems
    • Strong understanding of security best practices in crypto environments
    • Hands-on experience with Docker and containerized environments

       

      We are offering:

    • Transparent strategy and thoughtful management that keep everyone aligned
    • Space for personal growth and career development without limits
    • A culture of continuous learning: internal courses, workshops, and English classes twice a week
    • Skill up events where we share experience and stay on top of trends
    • Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy
    • Team spirit that thrives through regular events, gatherings, and celebrations
    More
  • Β· 66 views Β· 18 applications Β· 3d

    Senior Node.js Engineer (with C# (NinjaScript) and C++ (MQL5) experience))

    Full Remote Β· Worldwide Β· 5 years of experience Β· English - B2
    About us ZentixSoft is a young British-Ukrainian full-cycle IT company where we value People over processes. We need a "logic wizard" who can bridge the gap between human intent and strict algorithmic execution. About the project & conditions This...

    😊 About us
     

    ZentixSoft is a young British-Ukrainian full-cycle IT company where we value People over processes. We need a "logic wizard" who can bridge the gap between human intent and strict algorithmic execution.
     

    πŸ“ About the project & conditions

    This is a unique challenge: you will design a system that takes user intent (JSON) and mathematically generates error-free C# (NinjaScript) and C++ (MQL5) source code. You don't need to be a Wall Street quant, but you must love solving complex logical puzzles and building systems that require absolute precision.
     

    • Format: Full-time, Outstaff
    • Location: 100% Remote.
    • Duration: Long-term.
    • Start: ASAP.

       

    πŸ˜‰ What we expect from you

    • πŸ’Ž Node.js Expert: 5+ years in software development with a focus on complex backend architecture (NodeJS/TypeScript).
    • πŸ“ˆ Trading Platform Expertise: Deep hands-on experience with MQL5 (MetaTrader 5) or  NinjaScript (C#-based for NinjaTrader). You must understand their specific syntax and execution environments.
    • 🧠 Compiler Theory: Solid understanding of lexing, parsing, Abstract Syntax Trees (AST), and code generation principles.
    • πŸ—οΈ "Meta-Programming" Mindset: Experience building tools that generate other code, rule engines, or complex state machines.
    • βš™οΈ Strict Logic: You understand that "floating point math" is tricky in trading. You write defensive, deterministic, and memory-efficient code.
    • 🌍 English: Intermediate Strong (clear technical communication).
       

    πŸš€ Your responsibilities

    • NL-to-Code Conversion: Design the core logic for translating natural language into functional MQL5 and NinjaScript code.
    • System Architecture: Establish the backend architecture using Node.js for core services.
    • Quality & Validation: Ensure the generated code is syntactically perfect, secure, and optimized for live trading environments.
    • Research: Stay at the forefront of automated trading and LLM-driven code generation.
       

    🌟 Would be a big plus

    • πŸ¦€ Rust: Experience with Rust for building high-performance conversion engines.
    • πŸ€– LLM Integration: Experience working with LLMs for code generation and fine-tuning.
    • ☁️ Cloud & Data: Hands-on with AWS (Serverless, Aurora RDS, PostgreSQL).
       

    ✨ What awaits you at ZentixSoft

    • πŸ“ˆ Professional Growth. Individual development plans for your career path.
    • πŸ’΅ Salary Review. A structured policy to ensure your compensation grows.
    • πŸŽ“ Knowledge Sharing. Access to workshops and internal training.
    • πŸ—£οΈ English. We fully cover classes with a teacher.
    • βš–οΈ Work-Life Balance. We work without overtime and respect your personal time.
    • 🦾 Trust. Zero micromanagement β€” only freedom in making technical decisions.

      πŸ“© If you love solving complex logical puzzles and building systems that "write code" β€” send your CV!
    More
  • Β· 99 views Β· 28 applications Β· 3d

    Senior Back-end Node.js Developer (Product company, PropTech)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B2
    A direct contract with the product company (PropTech, US). Work schedule: remote CET business hours. We’re excited to offer a long-term opportunity for an experienced Back-end Developer (Node.js) to join a team of professional engineers and designers....

    A direct contract with the product company (PropTech, US).

    Work schedule: remote CET business hours.

     

    We’re excited to offer a long-term opportunity for an experienced Back-end Developer (Node.js) to join a team of professional engineers and designers. Together, you’ll be working on a US-based product that’s set to make a significant impact on the PropTech scene. This role offers the chance to contribute to a major market and collaborate with top talent in a dynamic environment.

     

    About ElevateOS Product:

    ElevateOS has been improving the resident experience for over seven years. We created a single, all-in-one platform that makes it easy for property managers and resident staff to work together. Our goal is simple: to provide the best experience for residents by replacing multiple, confusing apps with one easy solution.

     

    This is a stable, long-term project that continues to grow, and you'll have the chance to be part of its ongoing success.

    Our primary technology stack revolves around JavaScript. We use React for the front-end, Node.js for the back-end, and React Native for mobile development.

     

    Requirements:

    - 4-5+ years of development experience with Node.js;

    - Practical knowledge of VanillaJS, Typescript, Nest.js;

    - Hands-on experience creating robust API’s and designing scalable back-end architecture;

    - Experience with managing data and using different types of databases (SQL and non-SQL) for storing and operating on data;

    - Experience delivering (even small) projects, using modern tools like CircleCI, Docker, Kubernetes, Swarm and navigating through different environments like AWS, GCP, Digital Ocean.

    - Good understanding of ECMAScript specifications;

    - Good knowledge of GIT;

    - Proficient in English language.

     

    Additional (good-to-have) skills:

    - Experience with Microservice Architecture;

    - Experience working with AWS.

     

    Responsibilities:

    - Creating first-class back-end systems by writing clear, sustainable and well-tested code;

    - Improving performance and refactoring existing code;

    - Cooperating with the Product, UI/UX, QA and Front-end teams to fulfil project goals;

    - Configure project environments and deployment procedures;

    - Bugfix during the development process;

    - Cover your code with unit tests;

    - Write documentation.

     

    We are looking forward to having you on board to contribute to our journey of transforming real estate property management!

    More
  • Β· 50 views Β· 7 applications Β· 3d

    Full stack Node.is Team Lead

    Full Remote Β· Ukraine Β· 7 years of experience Β· English - B2
    On behalf with our customer we are seeking for Full Stack Team Lead to join our global R&D department in Poland. Our customer is an innovative technology company led by data scientists and engineers devoted to mobile app growth. Their proprietary ad...

    On behalf with our customer we are seeking for Full Stack Team Lead to join our global R&D department in Poland.

    Our customer is an innovative technology company led by data scientists and engineers devoted to mobile app growth. Their proprietary ad platforms powered by machine learning are the outcome of that devotion.
    They reward talents, employees support each other to advance individually and as a team.

    Responsibilities

    ● Design, code, and manage large scale, highly available, real-time (low latency) services using cutting edge technologies (Node.js, React, Redis, Kubernetes, etc. over AWS).
    ● Lead and mentor a team of around 4 members, abroad, and performing code reviews to other team members.
    ● Work with stakeholders including the Executive, Product, Data, and Design teams to craft the most optimal solutions for our problems.
    ● Design and develop APIs or integrate with 3rd party APIs
    ● Manage a time-efficient sprint plan. Plan, groom and manage the present sprint and the upcoming ones with Product
    ● Understand and implement security and data protection needs, and assist in-house teams and supply creative solutions for various problems.

    Requirements

    ● 7+ years of coding experience in Backend (NodeJS is preferred) and Frontend (One of the popular frameworks; React, Vue, Angular)
    ● 3+ years of management experience
    ● Working knowledge with SQL and NoSQL databases
    ● Working with one of the cloud providers: AWS, Google, Microsoft
    ● Experience with Kubernetes
    ● Experience in the software life cycle and knowing how to work in an agile environment
    ● Can-do attitude, self-sufficient, capable of learning alone and good English

    Bonus Skills

    ● Experience working with offshore contactors
    ● Experience with web-based SaaS systems
    ● Experience with Big Data

    What We Offer

    ● Remote work from Poland
    ● Working schedule Sunday-Thursday - must have
    ● Accounting support & consultation
    ● Opportunities for learning and developing on the project
    ● 20 working days of annual vacation
    ● 5 days paid sick leaves/days off; state holidays
    ● Provide working equipment

    More
  • Β· 139 views Β· 53 applications Β· 3d

    Senior Node.js Developer (Telephony Expertise)

    Full Remote Β· Worldwide Β· 4 years of experience Β· English - B2
    About us ZentixSoft is a young British-Ukrainian full-cycle IT company. We are all about cool solutions and constant growth, and our main principle is People over processes. We are currently looking for a proactive Senior Node.js Developer with deep...

    😊 About us
     

    ZentixSoft is a young British-Ukrainian full-cycle IT company. We are all about cool solutions and constant growth, and our main principle is People over processes. We are currently looking for a proactive Senior Node.js Developer with deep expertise in Telephony to join our team and build high-load communication systems.
     

    πŸ“ About the project & conditions

    This is a long-term project focused on developing and scaling a robust telephony service. You will have a high degree of technical autonomy to build dialer systems and manage multi-region infrastructure.
     

    • Format: Full-time,Outstaff
    • Start date: ASAP.
    • Duration: Long-term.
       

    πŸ˜‰ What we expect from you

    • πŸ”Œ VoIP APIs: Strong experience with Telnyx, Twilio, etc., and building dialer systems.
    • πŸ“‘ Protocols: Deep understanding of SIP protocol, SIP trunks, and WebRTC.
    • πŸ›  Telephony Tools: Hands-on experience with FreeSWITCH or Asterisk.
    • πŸ—Ί Architecture: Experience working with multi-region telephony systems.
    • πŸ’Ž Stack: 4+ years with Node.js/TypeScript, Docker, and CI/CD.
    • 🌍 English: Upper-Intermediate level for effective collaboration.
       

    🌟 Would be a big plus

    • πŸ› οΈ Telecom Tools: Experience with FreeSWITCH or Asterisk.
    • πŸ—ΊοΈ Global Scaling: Experience working with multi-region telephony systems and handling latency/routing issues.
    • πŸ€– Modern Workflow: Use of AI productivity tools (Cursor, ChatGPT, or Copilot) to speed up development.
       

    ✨ What awaits you at ZentixSoft

    • πŸ“ˆ Professional Growth. We create an individual development plan for your career path.
    • πŸ’΅ Salary Review. A structured policy to ensure your compensation grows with your skills.
    • πŸŽ“ Knowledge Sharing. Access to general training, workshops, and internal sessions.
    • 🀝 Corporate Culture. Full access to our culture and team activities.
    • πŸ—£οΈ English. We fully cover classes with a teacher.
    • βš–οΈ Work-Life Balance. We work without overtime and respect your personal time.
    • πŸ’» Tools. We cover the cost of all tools needed for work.
    • 🦾 Trust. Zero micromanagement β€” only freedom in making technical decisions.
       

    πŸ“© If you feel like this is about you β€” send your CV, and if it's a match, we will get in touch soon!

    More
  • Β· 82 views Β· 21 applications Β· 3d

    Node.js Developer (Telephony Service)

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2
    Workload: full-time Start: asap Duration: long-term Location: any About the project: Development of a telephony service with international coverage. The system includes an auto-dialer, a browser-based softphone, and multi-trunk call routing across...

    Workload: full-time
    Start: asap
    Duration: long-term
    Location: any

    About the project:
    Development of a telephony service with international coverage. The system includes an auto-dialer, a browser-based softphone, and multi-trunk call routing across different regions.

    Tech stack:
    Node.js (TypeScript), Telnyx Call Control API, Zadarma API, SIP.js / WebRTC, Redis, PostgreSQL.

    Responsibilities:
    Integration with VoIP providers (Telnyx, Zadarma)
    Development of a browser-based WebRTC client (softphone), including Caller ID management

    Requirements:
    4+ years of commercial experience with Node.js
    Strong knowledge of TypeScript
    Experience with WebSockets
    Experience working with Docker and CI/CDNice to have:
    Experience working with VoIP APIs such as Telnyx, Twilio, etc.
    Understanding of SIP protocol, SIP trunks, and WebRTC
    Experience building dialer systems
    Experience with FreeSWITCH or Asterisk
    Experience working with multi-region telephony systems

    More
  • Β· 159 views Β· 28 applications Β· 3d

    Strong Junior Backend (Node.js) Developer to $1500

    Full Remote Β· Countries of Europe or Ukraine Β· 1 year of experience Β· English - B2
    We are looking for a Strong Junior Node.js Developer with solid fundamentals and hands-on experience who is ready to grow into a confident backend engineer. You will work on real production features, APIs, and services together with experienced developers...

    We are looking for a Strong Junior Node.js Developer with solid fundamentals and hands-on experience who is ready to grow into a confident backend engineer. You will work on real production features, APIs, and services together with experienced developers and product teams.
     


    Responsibilities


    β€’ Develop and maintain backend services using Node.js


    β€’ Build and support REST APIs


    β€’ Work with databases (SQL or NoSQL)


    β€’ Integrate third-party services and APIs


    β€’ Write clean, maintainable, and well-structured code


    β€’ Fix bugs and improve existing backend logic


    β€’ Participate in code reviews and technical discussions


    β€’ Collaborate closely with frontend developers

     

     

    Requirements

     

    β€’ Profile technical education (Computer Science, Software Engineering, or related field)


    β€’ 1+ year of commercial or strong practical experience with Node.js


    β€’ Good knowledge of JavaScript (ES6+)  and  TypeScript

     

    β€’ Experience with ORMs/ODMs (TypeORM, Prisma, Mongoose)


    β€’ Understanding of backend fundamentals: request lifecycle, async/await, error handling


    β€’ Experience with Express.js / NestJS or similar frameworks


    β€’ Basic experience with databases (PostgreSQL, MySQL, or MongoDB)


    β€’ Understanding of REST principles


    β€’ Experience with Git


    β€’ Willingness to learn and improve code quality


    β€’ English level: B2or higher

     

     

    Nice to Have


    β€’ Familiarity with NestJS architecture


    β€’ Basic knowledge of Docker


    β€’ Understanding of authentication (JWT, sessions)


    β€’ Basic testing knowledge (Jest)

    More
  • Β· 72 views Β· 12 applications Β· 3d

    Lead Node.js Software Engineer

    Full Remote Β· Ukraine Β· 5 years of experience Β· English - B2
    About the client: Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Senior FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the...

    About the client:

    Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Senior FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.
     

    Responsibilities:

    • Developing fast, high-traffic public-facing websites
    • Explore new technologies and help the team to use them
    • Work using AI tools and apply them to the SDLC
    • Following software development best practices while delivering the work
    • Following testing principles while testing your own code to ensure production readiness
    • Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) 
       

    Requirements: 

    • 5+ years developing reliable, highly available, and scalable software systems
    • Strong understanding of software architecture and design patterns
    • Firm grasp of clean code principles and coding standards
    • Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development
    • Experience integrating AI tooling into your development environment for streamlined usage
    • Experience with AI Frameworks like Vercel AI SDK, LangChain, etc.
    • Strong proficiency with backend development (Typescript, Node.js, C#)
    • Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis)
    • Strong proficiency with frontend development (HTML, CSS, JavaScript)
    • Strong proficiency with component-based frameworks and SSR (Next.js/React, Vue.js, Angular)
    • Hands-on experience developing and maintaining 3rd party content management systems
    • Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker
    • Experience with APIs and developing in a service-based application environment
    • Experience building optimized UIs for performance
    • Proficiency with version control systems such as Git
    • Experience working within a formal CI/CD pipeline
    • Experience with logging, monitoring, and alerting services like Datadog, Newrelic
    • Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend
    • At least Upper-intermediate English level
    • Working for the North America timezone (ET) is preferable (till 21:00 Kyiv time)
    More
  • Β· 261 views Β· 86 applications Β· 4d

    Backend Developer (Node.js/TypeScript) β€” VPN Service MVP

    Part-time Β· Full Remote Β· Worldwide Β· 3 years of experience Β· English - A2
    Ми, компанія MoreApps, ΡˆΡƒΠΊΠ°Ρ”ΠΌΠΎ ΠΊΠΎΠΌΠ°Π½Π΄Ρƒ Ρ€ΠΎΠ·Ρ€ΠΎΠ±Π½ΠΈΠΊΡ–Π² для VPN-сСрвісу (MVP), Π° самС: β€” Backend Developer (Node.js/TypeScript/Go) β€” iOS Developer (Swift) β€” DevOps Engineer (AWS). Π―ΠΊΡ‰ΠΎ ΠΌΠ°Ρ”Ρ‚Π΅ ΠΊΠΎΠ»Π΅Π³ Π°Π±ΠΎ ΠΏΡ€Π°Ρ†ΡŽΡ”Ρ‚Π΅ командою, ΠΌΠΈ Π²Ρ–Π΄ΠΊΡ€ΠΈΡ‚Ρ– Π΄ΠΎ співпраці. Π€ΠΎΡ€ΠΌΠ°Ρ‚...

    Ми, компанія MoreApps, ΡˆΡƒΠΊΠ°Ρ”ΠΌΠΎ ΠΊΠΎΠΌΠ°Π½Π΄Ρƒ Ρ€ΠΎΠ·Ρ€ΠΎΠ±Π½ΠΈΠΊΡ–Π² для VPN-сСрвісу (MVP), Π° самС: 

    β€” Backend Developer (Node.js/TypeScript/Go) 
    β€” iOS Developer (Swift) 
    β€” DevOps Engineer (AWS). 
    Π―ΠΊΡ‰ΠΎ ΠΌΠ°Ρ”Ρ‚Π΅ ΠΊΠΎΠ»Π΅Π³ Π°Π±ΠΎ ΠΏΡ€Π°Ρ†ΡŽΡ”Ρ‚Π΅ командою, ΠΌΠΈ Π²Ρ–Π΄ΠΊΡ€ΠΈΡ‚Ρ– Π΄ΠΎ співпраці. 

    Π€ΠΎΡ€ΠΌΠ°Ρ‚ Ρ€ΠΎΠ±ΠΎΡ‚ΠΈ: Π²Ρ–Π΄Π΄Π°Π»Π΅Π½ΠΈΠΉ, part-time, T&M.

    ΠŸΡ€ΠΎΡ”ΠΊΡ‚: Ρ€ΠΎΠ·Ρ€ΠΎΠ±ΠΊΠ° Π· нуля. Вся докумСнтація Π³ΠΎΡ‚ΠΎΠ²Π°: functional requirements (120+ FR), sequence diagrams, API contracts, data models, NFR, infrastructure architecture, UI/UX Π΄ΠΈΠ·Π°ΠΉΠ½. Всі Π°Ρ€Ρ…Ρ–Ρ‚Π΅ΠΊΡ‚ΡƒΡ€Π½Ρ– Ρ‚Π° бізнСс-Ρ€Ρ–ΡˆΠ΅Π½Π½Ρ прийняті. ΠŸΠΎΡ‚Ρ€Π΅Π±Π° Π² якісній Ρ–ΠΌΠΏΠ»Π΅ΠΌΠ΅Π½Ρ‚Π°Ρ†Ρ–Ρ—. 

    Π’Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³Ρ–Ρ‡Π½ΠΈΠΉ стСк: Node.js/TypeScript, PostgreSQL, Prisma, WireGuard/AmneziaWG, Go, AWS (EC2, RDS), GitHub Actions.

    ΠšΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΈ:
    β€” Backend API (Node.js/TypeScript) β€” authentication (email + OTP, JWT access/refresh tokens), subscription management (Adapty webhooks + fallback verification), VPN connection orchestration (peer creation/removal, session limits, 30-min free session enforcement), server management (CRUD, provisioning, status lifecycle, health monitoring), user management (search, block/unblock, soft-delete, activity export). PostgreSQL, Prisma.
    β€” Admin Panel β€” internal web interface for managing VPN servers, users, and monitoring system health. Communicates with Backend API.
    β€” Server-side Agent (Go) β€” lightweight binary deployed on each VPN node. Manages WireGuard peers, reports health to backend, enforces traffic isolation between clients, auto-updates from GitHub.
    β€” iOS App (Swift) β€” user-facing mobile client: authentication, server selection, one-tap VPN connection, subscription purchase (Adapty SDK), settings, kill switch.

    Π―ΠΊΡ‰ΠΎ Π’ΠΈ Π·Π°Ρ†Ρ–ΠΊΠ°Π²Π»Π΅Π½Ρ– β€” Π±ΡƒΠ΄ΡŒ ласка, Π½Π°Π΄Ρ–ΡˆΠ»Ρ–Ρ‚ΡŒ ΠΊΠΎΡ€ΠΎΡ‚ΠΊΠΈΠΉ proposal Π· Π’Π°ΡˆΠΈΠΌ досвідом Ρ‚Π° Ρ€Π΅ΠΉΡ‚ΠΎΠΌ. ΠšΠ°Π½Π΄ΠΈΠ΄Π°Ρ‚Π°ΠΌ, які Π²Ρ–Π΄Π³ΡƒΠΊΠ½ΡƒΡ‚ΡŒΡΡ, Π½Π°Π΄Π°ΠΌΠΎ доступ Π΄ΠΎ Confluence Ρ‚Π° Π΄ΠΈΠ·Π°ΠΉΠ½Ρƒ. 

    Дякуємо!

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  • Β· 64 views Β· 9 applications Β· 4d

    Senior Backend Engineer (Blockchain/Crypto)

    Full Remote Β· Ukraine Β· 7 years of experience Β· English - B2
    The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin. We are looking for a Senior Backend Engineer with strong expertise in blockchain and crypto infrastructure to design, build, and scale...

    The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

    We are looking for a Senior Backend Engineer with strong expertise in blockchain and crypto infrastructure to design, build, and scale high-performance backend systems interacting with EVM-based networks. This role focuses on blockchain integrations, transaction processing, distributed systems, and secure financial infrastructure at global scale.


    Responsibilities:

    • Design, build, and maintain scalable backend services using Node.js (JavaScript/TypeScript)
    • Develop and optimize blockchain integrations with EVM-compatible networks
    • Implement Web3-based interactions (smart contract calls, transaction signing, event indexing)
    • Build secure services for transaction processing, wallet operations, and balance tracking
    • Integrate with RPC providers, blockchain nodes, and third-party crypto services
    • Design event-driven and distributed architectures for high-load financial systems
    • Optimize gas usage, transaction batching, and on-chain/off-chain communication
    • Implement monitoring, logging, and alerting for blockchain infrastructure
    • Ensure security best practices in key management, signing flows, and API protection
    • Write production-grade, well-tested code (unit, integration, load tests)
    • Collaborate with product, DevOps, and security teams in a fully remote environment
       

    Requirements:

    • 7+ years of backend development experience
    • Strong proficiency in JavaScript / TypeScript
    • Deep experience with Node.js in production environments
    • Hands-on experience with Web3 libraries (ethers.js, web3.js, viem, etc.)
    • Strong understanding of EVM architecture and smart contracts
    • Experience designing scalable distributed systems
    • Strong understanding of security best practices in crypto environments
    • Hands-on experience with Docker and containerized environments
       

      We are offering:

    • Transparent strategy and thoughtful management that keep everyone aligned
    • Space for personal growth and career development without limits
    • A culture of continuous learning: internal courses, workshops, and English classes twice a week
    • Skill up events where we share experience and stay on top of trends
    • Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy
    • Team spirit that thrives through regular events, gatherings, and celebrations
       
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  • Β· 88 views Β· 9 applications Β· 4d

    Senior Software Engineer (Node.js)

    Full Remote Β· EU Β· 5 years of experience Β· English - B2
    We invite a Senior Software Engineer with strong Node.js expertise and solid AWS knowledge to join our team. You'll work with a trusted leader in the Point-of-Sale industry with over 100,000 global installations. In this role, you’ll contribute to our...

    🟒We invite a Senior Software Engineer with strong Node.js expertise and solid AWS knowledge to join our team. You'll work with a trusted leader in the Point-of-Sale industry with over 100,000 global installations. In this role, you’ll contribute to our client’s new initiative focused on creating data mapping between diverse menu order systems and integrating two distinct APIs to ensure seamless and accurate data transfer.

     

    🟩 What's in it for you:

    • Collaborate on a high-load, technically challenging backend project, expanding your expertise in API integration, data mapping, and data transformation
    • Contribute to a global tech platform offering robust solutions for the restaurant and food service industry
    • Influence technical best practices and mentor engineers, promoting a culture of quality and continuous improvement

     

    βœ… Is that you?

    • 4+ years of commercial backend development experience with deep expertise in Node.js and TypeScript in production environments
    • 2-3+ years of AWS experience (EC2, ECS, Lambda, SQS/SNS, CloudWatch, etc.)
    • Solid experience with MongoDB
    • Proven experience designing, building, and maintaining RESTful APIs
    • Strong understanding of backend architecture and service design
    • Experience writing unit and integration tests
    • Experience with CI/CD pipelines and automated deployments
    • Strong ownership mindset and ability to work independently, resolve complex issues, and deliver solutions
    • Excellent communication and cross-functional collaboration skills
    • Upper-Intermediate+ English level

     

    Desirable:

    • Experience mentoring or providing technical guidance to engineers
       

    🧩Key responsibilities and your contribution

    In this role, you’ll contribute to the design, development, and continuous improvement of high-loaded backend systems and services, ensuring technical quality and delivering bullet-proof solutions.

     

    • Design, build, and maintain high-loaded backend systems and APIs using Node.js and AWS
    • Develop new backend features and enhancements for production systems
    • Support and troubleshoot production systems to ensure reliability and performance
    • Identify and reduce technical debt and implement improvements to maintain code quality and reliability
    • Write and maintain unit and integration tests to ensure code quality
    • Collaborate with cross-functional teams to define requirements and deliver bullet-proof solutions
    • Contribute to the continuous improvement of backend architecture and development practices
    • Create and maintain clear, organized development documentation
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  • Β· 102 views Β· 19 applications Β· 4d

    Lead Backend Engineer

    Full Remote Β· Ukraine Β· 4 years of experience Β· English - B2
    Description A product is an affordable alternative to traditional broadcast video capture system. We provide a full broadcasting solution for amateurs, broadcasters, sports leagues, clubs, coaches and consumers, offering unique, interactive and immersive...

    Description

    A product is an affordable alternative to traditional broadcast video capture system. We provide a full broadcasting solution for amateurs, broadcasters, sports leagues, clubs, coaches and consumers, offering unique, interactive and immersive viewing experiences.

    The AI-based automated production solution provides the sports market with easy and affordable ways to produce and distribute high-quality game, player videos and performance analysis. The system consists of a unique panoramic camera head and standard computers running proprietary algorithms for Panoramic and HD video and camera control.

    Giving an editing platform for multiple types of athletic events we establish the first end-to-end automated video and data solution in the sports industry. The product revolutionizes sports video with an automated online video editing system that enables coaches to simply and easily access game video break downs, saving them time and hassle. Our range of products include game analysis, game exchange, and video replay. We support all major team sports and caters to every level from youth, high school, college, through professional.

     

    Requirements

    • At least 5 years of hands-on experience in backend development, with at least 4-5 years specifically in Node.js in a production environment.
    • Proven track record of designing and implementing scalable, high-performance, and secure distributed systems. Demonstrated ability to make sound architectural decisions, considering trade-offs and future scalability.
    • Experience with designing and implementing microservices architectures. Understanding of data structures, algorithms, and software design patterns.
    • Strong experience with RESTful API design and development; Familiarity with message queues (e.g., Kafka, RabbitMQ)
    • Proficiency in working with various database technologies (SQL and NoSQL or others relevant to your stack).
    • Strong experience with cloud platforms and associated services is highly desirable; AWS is required, and others (e.g., GCP, Azure) will be a plus.
    • Solid understanding of containerization (Docker) and orchestration (Kubernetes).
      Strong background with proven architecture and business-level design expertise, complemented by a solid understanding of front-end principles
    • Hands-on experience with modern development approaches, tools, and practices
    • Experience with CI/CD pipelines and DevOps practices.
    • Proven experience working with Generative AI (GenAI) technologies and frameworks. Demonstrated enthusiasm for personal and team development, particularly in advancing skills and competencies in GenAI.
    • Excellent verbal and written communication skills in English. You will be engaging with diverse stakeholders, including product management, UX/UI designers, and other engineering teams. Strong interpersonal skills and a collaborative mindset, with a proven ability to work effectively within a cross-functional team.
    • A bachelor’s degree in Computer Science, Software Engineering, or a related field will be a plus.

     

    Job responsibilities

    GlobalLogic team has been involved for many years into development, deployment and support of many different areas of the solution. We are now looking for a talented Nodejs Developer who will join our fast growing team, help us to extend the capabilities of our existing products and build new

    Some of your responsibilities will include

    • Close cooperation with Client R&D team to match requirements, coordinate with co-developers and manager, send regular updates – your communications skills will be very important;
    • Drive the architectural design and evolution of the platform, ensuring scalability, security, performance, and maintainability;
    • Lead a team of five professionals, ensuring effective collaboration, clear accountability, and timely delivery of project objectives in alignment with established quality and performance standards.
    • Proactively identify technical challenges and propose innovative solutions. Troubleshoot and resolve complex issues in a timely manner, ensuring the stability and reliability of the platform;
    • Developing both personal expertise and team capabilities in the GenAI space.
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  • Β· 176 views Β· 94 applications Β· 4d

    Senior React / Node.js Engineer

    Full Remote Β· Worldwide Β· 4 years of experience Β· English - B1
    We are seeking a Senior React / Node.js Engineer to play a key role in developing and scaling our customer-facing web platform and API, and an internal platform used for AI model training. This is a hands-on role with a strong focus on technical...

    We are seeking a Senior React / Node.js Engineer to play a key role in developing and scaling our customer-facing web platform and API, and an internal platform used for AI model training. This is a hands-on role with a strong focus on technical ownership, system design, and product-team collaboration.


     

    The ideal candidate combines deep technical expertise in modern TypeScript-based development with experience shipping high-quality features in a fast-paced startup environment.


     

    Key Responsibilities


     

    Technical Ownership


     

    Own the development and maintenance of our customer-facing web platform (React + Node.js), external APIs and Internal Platform.


     

    Design and implement backend services using AWS Lambda (serverless) and containerized workloads on EC2.


     

    Ensure performance, reliability, and scalability of the Postgres RDS database.


     

    Drive improvements to CI/CD pipelines, build systems, testing strategy, and infrastructure reliability.


     

    Ecosystem & Tooling


     

    Work within a monorepo environment.


     

    Manage Infrastructure as Code using CloudFormation.


     

    Maintain monitoring, logging, and alerting pipelines using Coralogix.


     

    Ensure robust automated testing using Cypress and Vitest.


     

    Maintain Docker-based development environments and EC2 deployments.


     

    Cross-Team Collaboration


     

    Partner directly with Product Managers to translate requirements into technical plans.


     

    Coordinate with other engineering teams under the CTO to align architecture, standards, and shared components.


     

    Key Projects They Will Own


     

    Customer-facing web platform (React + Node.js + AWS) and API.


     

    Internal platform for AI model training, including backend services and supporting tooling.


     

    Ongoing modernization and scaling efforts across the stack.


     

    Culture & Working Style


     

    Scrum-based, iterative development


     

    High autonomyβ€”engineers are trusted to own problems end-to-end


     

    Fast-paced startup with rapid decision-making and high impact


     

    Qualifications


     

    Strong experience with TypeScript across frontend and backend.


     

    Hands-on experience with React, Node.js, AWS Lambda, EC2, Postgres RDS, and Docker.


     

    Solid understanding of CI/CD (GitHub Actions), automated testing, logging, and monitoring.


     

    Ability to work directly with Product and translate requirements into architecture and tasks.


     

    Nice to Have


     

    Knowledge of serverless design patterns.


     

    Experience in performance tuning for Postgres and Node.js.


     

    Hiring Process


     

    Technical screening


     

    Culture interview with CEO

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