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162
  • Β· 0 views Β· 2 applications Β· 2d

    Lead Node.js Developer

    Full Remote Β· Ukraine Β· Product Β· 6 years of experience
    Requirements: 6+ years of pure backend Nodejs development experience 1+ years of leading the teams Strong understanding of system scalability and designing high-performance systems. Proficiency with TypeScript Expertise in API development Experience with...

    Requirements:

    • 6+ years of pure backend Nodejs development experience
    • 1+ years of leading the teams
    • Strong understanding of system scalability and designing high-performance systems.
    • Proficiency with TypeScript
    • Expertise in API development
    • Experience with Docker
    • Message brokers like RabbitMQ, NATS etc
    • PostgreSQL
    • Strong understanding of design patterns and SOLID principles
    • Strong understanding of application security principles 
    • Nice to have: Gambling domain experience 

     

    Will be a plus:

    Experience with Nest.JS

    Experience with NoSQL databases (e.g. MongoDB, Redis) 

     

    Responsibilities:

    • Lead and manage the development team, fostering collaboration, mentorship, and technical excellence.
    • Design, develop, and implement new features and components for the service, ensuring scalability and performance.
    • Identify and resolve technical issues encountered during the development process.
    • Maintain and enforce coding standards, ensuring consistency, readability, and adherence to best practices.
    • Plan and document tasks independently, providing clear and actionable descriptions for assigned responsibilities.
    • Create and maintain technical documentation for implemented features, ensuring clarity for both the team and stakeholders.
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  • Β· 0 views Β· 4 applications Β· 2d

    Senior Backend Engineer (Node.js/Go)

    Full Remote Β· Ukraine Β· 5 years of experience Β· Intermediate
    Π’Ρ–Π΄ΠΊΡ€ΠΈΡ‚Π° позиція Senior Backend Engineer (Node.js/Go) для Π²Ρ–Π΄Π΄Π°Π»Π΅Π½ΠΎΡ— Ρ€ΠΎΠ±ΠΎΡ‚ΠΈ. Аутсорс компанія ΡΠΏΡ–Π²ΠΏΡ€Π°Ρ†ΡŽΡ” Π· компаніями Π·Ρ– списку Fortune 500 Ρ‚Π° Π΄ΠΎΠ±Ρ€Π΅ фінансованими стартапами, Ρ‰ΠΎΠ± Π΄ΠΎΠΏΠΎΠΌΠΎΠ³Ρ‚ΠΈ Π²Ρ‚Ρ–Π»ΠΈΡ‚ΠΈ Π½ΠΎΠ²Ρ– ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈ Π² Тиття: Π¦Π΅ ΠΊΠΎΠΌΠ°Π½Π΄Π° ΠΏΠΎΠ½Π°Π΄ 200...

    Π’Ρ–Π΄ΠΊΡ€ΠΈΡ‚Π° позиція Senior Backend Engineer (Node.js/Go) для Π²Ρ–Π΄Π΄Π°Π»Π΅Π½ΠΎΡ— Ρ€ΠΎΠ±ΠΎΡ‚ΠΈ.

    βœ”οΈ Аутсорс компанія ΡΠΏΡ–Π²ΠΏΡ€Π°Ρ†ΡŽΡ” Π· компаніями Π·Ρ– списку Fortune 500 Ρ‚Π° Π΄ΠΎΠ±Ρ€Π΅ фінансованими стартапами, Ρ‰ΠΎΠ± Π΄ΠΎΠΏΠΎΠΌΠΎΠ³Ρ‚ΠΈ Π²Ρ‚Ρ–Π»ΠΈΡ‚ΠΈ Π½ΠΎΠ²Ρ– ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈ Π² Тиття: 

    Π¦Π΅  ΠΊΠΎΠΌΠ°Π½Π΄Π° ΠΏΠΎΠ½Π°Π΄ 200 Ρ–Π½ΠΆΠ΅Π½Π΅Ρ€Ρ–Π², Π΄ΠΈΠ·Π°ΠΉΠ½Π΅Ρ€Ρ–Π², Π°Π½Π°Π»Ρ–Ρ‚ΠΈΠΊΡ–Π² Ρ‚Π° ΠΊΠΎΠ½ΡΡƒΠ»ΡŒΡ‚Π°Π½Ρ‚Ρ–Π², які Π²ΠΈΡ€Ρ–ΡˆΡƒΡŽΡ‚ΡŒ складні бізнСс-завдання Π·Π° допомогою Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³Ρ–ΠΉ.

    βœ”οΈ  ΠšΠ»Ρ–Ρ”Π½Ρ‚ ΠΏΡ€ΠΎΠ΅ΠΊΡ‚Ρƒ β€” Π°ΠΌΠ΅Ρ€ΠΈΠΊΠ°Π½ΡΡŒΠΊΠ° компанія, яка ΠΏΠΎΡ€Ρ–Π²Π½Ρƒ Π·Π°ΠΉΠΌΠ°Ρ”Ρ‚ΡŒΡΡ ΠΏΡ€ΠΎΠ΄Π°ΠΆΠ΅ΠΌ профСсійного обладнання Ρ‚Π° споТивчого обладнання, Π²ΠΈΠ·Π½Π°Π½ΠΈΠΉ Π»Ρ–Π΄Π΅Ρ€ Ρƒ сфСрі управління Π±ΡƒΠ΄ΠΈΠ½ΠΊΠΎΠΌ Ρ‚Π° Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·Π°Ρ†Ρ–Ρ—, Π° Ρ‚Π°ΠΊΠΎΠΆ ΠΎΠ΄Π½Π° Π· Π½Π°ΠΉΠ±Ρ–Π»ΡŒΡˆ ΡˆΠ²ΠΈΠ΄ΠΊΠΎΠ·Ρ€ΠΎΡΡ‚Π°ΡŽΡ‡ΠΈΡ… ΠΊΠΎΠΌΠΏΠ°Π½Ρ–ΠΉ Ρƒ сфСрі Ρ€ΠΎΠ·ΡƒΠΌΠ½ΠΎΠ³ΠΎ Π΄ΠΎΠΌΡƒ Π½Π° Ρ€ΠΈΠ½ΠΊΠ°Ρ…. Π‘Ρ‚Π²ΠΎΡ€ΡŽΡ”ΠΌΠΎ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈ, які Ρ” Π²ΠΈΠ½Π°Ρ…Ρ–Π΄Π»ΠΈΠ²ΠΈΠΌΠΈ, простими Ρƒ використанні Ρ‚Π° ΠΎΡ€Ρ–Ρ”Π½Ρ‚ΠΎΠ²Π°Π½ΠΈΠΌΠΈ Π½Π° ΠΌΠ°ΠΉΠ±ΡƒΡ‚Π½Ρ”, Ρ‰ΠΎΠ± ΠΊΠ»Ρ–Ρ”Π½Ρ‚ΠΈ ΠΌΠΎΠ³Π»ΠΈ користуватися Π½ΠΈΠΌΠΈ Ρ€ΠΎΠΊΠ°ΠΌΠΈ.

    βœ”οΈΠ―ΠΊ Ρ‡Π»Π΅Π½ ΠΊΠΎΠΌΠ°Π½Π΄ΠΈ IoT Cloud Software, Π²ΠΈ Π±ΡƒΠ΄Π΅Ρ‚Π΅ розробляти, ΠΏΡ€ΠΎΠ΅ΠΊΡ‚ΡƒΠ²Π°Ρ‚ΠΈ, ΡΠΏΡ–Π²ΠΏΡ€Π°Ρ†ΡŽΠ²Π°Ρ‚ΠΈ Ρ‚Π° Π²Ρ‚Ρ–Π»ΡŽΠ²Π°Ρ‚ΠΈ Π² Тиття IoT-Ρ€Ρ–ΡˆΠ΅Π½Π½Ρ Ρ€Π°Π·ΠΎΠΌ Π· ΠΊΠ²Π°Π»Ρ–Ρ„Ρ–ΠΊΠΎΠ²Π°Π½ΠΈΠΌΠΈ Ρ–Π½ΠΆΠ΅Π½Π΅Ρ€Π°ΠΌΠΈ Π· ΠΊΠΎΠΌΠ°Π½Π΄ ΠΌΠΎΠ±Ρ–Π»ΡŒΠ½ΠΈΡ… пристроїв, ΠΏΡ€ΠΎΡˆΠΈΠ²ΠΎΠΊ Ρ‚Π° ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŽ якості. Π ΠΎΠ·ΡƒΠΌΡ–ΡŽΡ‡ΠΈ Ρ‚Π° Π²Ρ‚Ρ–Π»ΡŽΡŽΡ‡ΠΈ бачСння ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚Ρ–Π² наступного покоління, Π²ΠΈ ΡΡ‚Π²ΠΎΡ€ΡŽΠ²Π°Ρ‚ΠΈΠΌΠ΅Ρ‚Π΅ Π½Π°Π΄Ρ–ΠΉΠ½Ρ–, ΠΌΠ°ΡΡˆΡ‚Π°Π±ΠΎΠ²Π°Π½Ρ– Ρ…ΠΌΠ°Ρ€Π½Ρ– Ρ€Ρ–ΡˆΠ΅Π½Π½Ρ як основу для IoT-послуг.
     

    βœ”οΈ Обов'язковий досвід Ρ€ΠΎΠ±ΠΎΡ‚ΠΈ Π·:
    - JavaScript,
    - високонавантаТСними систСмами,
    - Go,
    - AWS.

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  • Β· 0 views Β· 9 applications Β· 2d

    Senior Backend Engineer

    Full Remote Β· Ukraine Β· Product Β· 5 years of experience Β· Upper-Intermediate
    Оur сlΡ–Π΅nt Ρ–s lΠΎΠΎkΡ–ng fΠΎr Π° strΠΎng Ρ–ndΡ–vΡ–duΠ°l соntrΡ–butΠΎr whΠΎ саn tΠ°kΠ΅ ΠΎwnΠ΅rshΡ–p Π°nd lΠ΅Π°d bасkΠ΅nd dΠ΅vΠ΅lΠΎpmΠ΅nt wΡ–thΡ–n thΠ΅ Аpp tΠ΅Π°m. LосаtΡ–ΠΎn – rΠ΅mΠΎtΠ΅lΡƒ ThΠ΅ Ρ–dΠ΅Π°l саndΡ–dΠ°tΠ΅ prΠΎfΡ–lΠ΅ Ρ–nсludΠ΅s: 5+ ΡƒΠ΅Π°rs ΠΎf prΠΎfΠ΅ssΡ–ΠΎnΠ°l sΠΎftwΠ°rΠ΅ Π΅ngΡ–nΠ΅Π΅rΡ–ng Π΅xpΠ΅rΡ–Π΅nсС Аt...

    Оur сlΡ–Π΅nt Ρ–s lΠΎΠΎkΡ–ng fΠΎr Π° strΠΎng Ρ–ndΡ–vΡ–duΠ°l соntrΡ–butΠΎr whΠΎ саn tΠ°kΠ΅ ΠΎwnΠ΅rshΡ–p Π°nd lΠ΅Π°d bасkΠ΅nd dΠ΅vΠ΅lΠΎpmΠ΅nt wΡ–thΡ–n thΠ΅ Аpp tΠ΅Π°m.

    LосаtΡ–ΠΎn – rΠ΅mΠΎtΠ΅lΡƒ
     

    ThΠ΅ Ρ–dΠ΅Π°l саndΡ–dΠ°tΠ΅ prΠΎfΡ–lΠ΅ Ρ–nсludΠ΅s:  

    • 5+ ΡƒΠ΅Π°rs ΠΎf prΠΎfΠ΅ssΡ–ΠΎnΠ°l sΠΎftwΠ°rΠ΅ Π΅ngΡ–nΠ΅Π΅rΡ–ng Π΅xpΠ΅rΡ–Π΅nсС
    • Аt lΠ΅Π°st 1 ΡƒΠ΅Π°r Ρ–n Π° sΠ΅nΡ–ΠΎr-lΠ΅vΠ΅l pΠΎsΡ–tΡ–ΠΎn, wΡ–th dΠ΅mΠΎnstrΠ°tΠ΅d ΠΎwnΠ΅rshΡ–p Π°nd lΠ΅Π°dΠ΅rshΡ–p Ρ–n prΠΎjСсts ΠΎr sΡƒstΠ΅ms
    • MΡ–nΡ–mum ΠΎf 3 ΡƒΠ΅Π°rs wΠΎrkΡ–ng Ρ–n prΠΎduсt соmpΠ°nΡ–Π΅s, wΡ–th thΠ΅ mΠΎst rСсСnt Π΅xpΠ΅rΡ–Π΅nсС Π°t Π° prΠΎduсt-bΠ°sΠ΅d соmpΠ°nΡƒ
    • PrΠΎduсt mΡ–ndsΠ΅t β€” sΠΎmΠ΅ΠΎnΠ΅ whΠΎ Ρ–s mΠΎtΡ–vΠ°tΠ΅d
    • bΡƒ сrΠ΅Π°tΡ–ng Ρ–mpасt, undΠ΅rstΠ°nds usΠ΅r nΠ΅Π΅ds, Π°nd соnnСсts tСсhnісаl dСсіsΡ–ΠΎns tΠΎ prΠΎduсt ΠΎutсоmΠ΅s
    • 3+ ΡƒΠ΅Π°rs ΠΎf hΠ°nds-ΠΎn bасkΠ΅nd Π΅xpΠ΅rΡ–Π΅nсС,
    • pΠ°rtісulΠ°rlΡƒ wΡ–th NΠΎdΠ΅.js, Π°nd Ρ–dΠ΅Π°llΡƒ Π΅xpΠ΅rΡ–Π΅nсС wΡ–th АWS, PΠΎstgrΠ΅SQL, mісrΠΎsΠ΅rvісСs, Π°nd sсаlΠ°blΠ΅ Π°rсhΡ–tСсturΠ΅
    • StrΠΎng соmmunісаtΡ–ΠΎn skΡ–lls Π°nd thΠΎughtfulnΠ΅ss     
    • Π‘lΠ΅Π°r mΠΎtΡ–vΠ°tΡ–ΠΎn tΠΎ grΠΎw, соntrΡ–butΠ΅ tΠΎ Π° smΠ°ll Π°nd fΠ°st-pасСd tΠ΅Π°m, Π°nd buΡ–ld Π° prΠΎduсt wΡ–th rΠ΅Π°l usΠ΅r vΠ°luΠ΅

     

     NісС-tΠΎ-hΠ°vΠ΅s:

    • Π•xpΠ΅rΡ–Π΅nсС wΡ–th sΡ–mΡ–lΠ°r prΠΎduсts (dΠ°tΠ°-hΠ΅Π°vΡƒ plΠ°tfΠΎrms, SΠ°Π°S, fΡ–nΠ°nсіаl Π°nΠ°lΡƒtісs)
    • RΠ΅lΠ΅vΠ°nt Π΅duсаtΡ–ΠΎn ΠΎr сСrtΡ–fісаtΡ–ΠΎns
    • FrΠΎntΠ΅nd fΠ°mΡ–lΡ–Π°rΡ–tΡƒ wΡ–th RСасt ΠΎr sΡ–mΡ–lΠ°r frΠ°mΠ΅wΠΎrks Ρ–s Π° bΠΎnus, but nΠΎt Π΅ssΠ΅ntΡ–Π°l

     

    Benefits:

    • 20 dΠ°ys ΠΎf vΠ°cΠ°tiΠΎn
    • PΠ°rtiΠ°l tuitiΠΎn pΠ°yment
    • MedicΠ°l insurΠ°nce
    • The cΠΎmpΠ°ny prΠΎvides equipment
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  • Β· 0 views Β· 8 applications Β· 2d

    Senior Backend Developer (Payment Gateway Aggregator)

    Full Remote Β· Ukraine Β· 5 years of experience Β· Intermediate
    We’re looking for a Senior Backend Developer to help build and scale a high-load payment gateway aggregator for a fast-growing iGaming platform focused on the Asian market. You’ll work on integrating multiple payment providers, ensuring seamless...

    We’re looking for a Senior Backend Developer to help build and scale a high-load payment gateway aggregator for a fast-growing iGaming platform focused on the Asian market.
    You’ll work on integrating multiple payment providers, ensuring seamless transaction flows, and building a system that automatically handles failures by switching between gateways.
    If you enjoy smart engineering challenges, taking ownership, and building reliable systems without heavy bureaucracy β€” we’d love to connect!

     

    How You’ll Contribute

     

    • Design and develop the backend architecture for a high-load payment aggregator.
    • Integrate multiple payment systems and APIs to ensure smooth and uninterrupted payment processing
    • Build and scale microservices to handle large volumes of payment transactions (Node.js, NestJS, Kafka/gRPC). 
    • Optimize PostgreSQL databases to handle large volumes of transaction data efficiently
    • Set up and fine-tune AWS infrastructure (S3, Lambda, RDS, EC2, CloudFormation, CloudWatch) for high availability and performance. 
    • Implement CI/CD pipelines, monitor system health, and ensure secure financial operations.
    • Build fallback mechanisms between payment gateways to maintain uninterrupted payment processing.

     

    What Makes You a Perfect Fit

    • 6+ years of hands-on experience building server-side solutions with Node.js and NestJS.
    • Mastery of microservices and async processing (gRPC, Kafka).
    • Deep experience designing and optimizing scalable, high-load systems 
    • Pro-level AWS knowledge (S3, Lambda, RDS, EC2, CloudFormation, CloudWatch).
    • Deep expertise in PostgreSQLβ€”designing and tuning databases for large-scale data.
    • Strong TypeScript skills and a commitment to clean, reliable code.
    • Familiarity with monitoring tools and load-balancing solutions.
    • Comfortable taking ownership and driving things forward independently

    Nice-to-Haves

    • Team lead experience or interest in mentoring others
    • Background in payment systems or financial platforms.
    • Knowledge of security and cryptography for protecting sensitive data.
    • Experience with horizontal scaling and database distribution strategies like sharding or replication

       

    Hiring Process

    Just two steps: a 30–40 min intro call with our Talent Partner to get to know you and share project details, followed by one technical interview. We’ll cover your experience, project details, and the challenges we’re solving. We value your time and aim to move fast.

     

    Your next challenge is waiting. Let’s connect, talk about the impact we can make, and see if we’re the right fit for each other!

     

     

    Who We Are

    Umber is a full-cycle product agency founded in 2018. We started as a design-driven company and now build complex finance systems from the ground up. Our current focus: payment solutions, trading platforms, and tools for professional investors and traders.

    We’re a small, ambitious, senior-level team working with top-tier financial clients. We’re passionate about finance, trading, and creating systems that don’t just work β€” they scale and shine under pressure. Check us out at https://umber.tech.

     

    Why Join Us

    • Hardcore engineering challenges β€” real-time trading, high-load systems, financial-grade security
    • Small team, no bureaucracy β€” you’ll work closely with the CTO and make architecture-level decisions
    • Flexibility β€” fully remote, Eastern European time zone overlap
    • Mentorship and space to grow β€” if you’re good, we’ll make you great
    • Impact β€” your code goes live, fast. You’ll shape the core of the product
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  • Β· 0 views Β· 1 application Β· 2d

    Senior Full Stack Developer ( Node.js, React ) to $6800

    Full Remote Β· Portugal Β· 5 years of experience Β· Upper-Intermediate
    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: Our client is a financial technology company that enhances the global...

    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:

    Our client is a financial technology company that enhances the global economy by simplifying B2B transactions, making it easier for businesses to trade goods and services digitally worldwide. Its solution enables payments, financing, marketplace features, and automation of financial workflows. 

     

    About the Role:

    As a Senior Full Stack Developer you will be focused on crafting systems and automations to support business scale. Combining your backend and a bit of frontend expertise, you will design, build, and refine features that streamline modern checkout, payment processes and reconciliation systems.

     

    Key Responsibilities:

    • Work with product managers to translate requirements into functional and efficient applications and systems
    • Participate in design and code reviews to provide and receive constructive feedback and ensure adherence to coding standards
    • Design and implement unique solutions to complex problems, taking full ownership of feature sets from initial discussion through to delivery to customers
    • Troubleshoot and debug issues across the stack, identifying and implementing solutions in a timely manner
    • Implement automated testing and deployment processes to ensure code quality and rapid iteration
    • Contribute to the continuous improvement of development processes and tools to enhance team efficiency and productivity
    • Stay up-to-date with industry trends and technologies, and apply this knowledge to drive innovation within the development team
    • Participate in team responsibilities, including production on-call

     

    Required Competence and Skills:

    • 5+ years of professional Software Development experience
    • 5+ years of experience with Node.JS, Typescript and RESTful API; preferably using Nest.JS
    • Experience with React and excellent knowledge of HTML5/CSS
    • Knowledge in test automation tools and libraries, preferably Jest/Playwright 
    • Experience working in Agile, using CI/CD workflows, on a dockerized solution deployed on public cloud; preferably AWS
    • Experience with microservice architecture 
    • Experience with end-to-end feature development
    • Strong communication in English, both written and verbal
    • An ambitious team player with a strong ability to work both in a team and independently
    • Bachelor’s degree in Computer Science, Engineering, or a related field

     

    Nice To have:

    • Experience in  Fintech companies
    • Experience developing for eCommerce applications such as Shopify, Mirakl, BigCommerce, Vtex, Oro Commerce and other.
    • Experience with PHP

     

    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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  • Β· 0 views Β· 13 applications Β· 2d

    Senior Full Stack Developer/Backend-oriented to $6500

    Full Remote Β· Bulgaria, Poland, Portugal, Romania, Ukraine Β· Product Β· 5 years of experience Β· Upper-Intermediate
    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: The company is a pioneering tech firm driven by a team of...

    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:

    The company is a pioneering tech firm driven by a team of data scientists and engineers dedicated to mobile app expansion. Exclusive advertising platforms, fueled by advanced machine learning, are a testament to this commitment.

    It provides significant results and insights for a rapidly expanding client base of top app developers, utilizing premium programmatic user acquisition and retargeting technologies. Cutting-edge machine learning technology, which continuously evolves, processes tens of terabytes of raw data daily to generate millions of real-time advertising recommendations.

     

    About the Role: 

    As a senior Full Stack developer, you will have full ownership of your tasks, with the freedom to learn and enhance your skills alongside a highly talented team and cutting-edge technologies. 

     

    Required Competence and Skills:

    • 5+ years of full stack coding experience – Backend oriented – Node.js;
    • Experience with Frontend –  React (or Angular);
    • Working knowledge with my MySQL database;
    • Working with one of the cloud providers: AWS, GCP, Azure;
    • Ability to work independently;
    • Working with production environment;
    • Decent communication skills;
    • English: upper intermediate level.

     

    Nice to have skills:

    • Experience with Python or Java;
    • Experience with web-based SaaS systems;
    • Experience with scale;
    • Experience with EJS;
    • Experience with Kubernetes and Docker.

     

    Key responsibilities:

    • Design, code, and manage large scale, highly available, real-time (low latency) services using cutting edge technologies (Node.js, React, Redis, Presto, Docker, built on AWS infrastructure);
    • Design and develop APIs or integrate with 3rd party APIs;
    • DevOps (service discovery, streams, monitoring, configurations, etc);
    • Perform code reviews to other team members;
    • Understand and implement security and data protection needs.
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  • Β· 0 views Β· 10 applications Β· 2d

    Senior Node.js Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· 6 years of experience Β· Advanced/Fluent
    Role Overview: We are seeking a highly experienced Senior Node.js Engineer to join our growing engineering team. As a senior member of our team, you will take on a leadership role in designing, implementing, and scaling highly performant systems. You will...

    Role Overview:

    We are seeking a highly experienced Senior Node.js Engineer to join our growing engineering team. As a senior member of our team, you will take on a leadership role in designing, implementing, and scaling highly performant systems. You will work with cloud infrastructure, primarily AWS, and build robust microservices that support high-load, real-time applications.

    You will be responsible for architecting complex systems, ensuring scalability and efficiency while also providing mentorship to junior developers. This is an exciting opportunity for a self-driven, technically versatile engineer who is comfortable working independently and thrives in a fast-paced, collaborative environment.

     

    Key Responsibilities:

    • Architecture & Design: Lead the architecture and design of high-performance, scalable, and fault-tolerant Node.js applications and microservices running in a cloud environment (primarily AWS).
    • Cloud Infrastructure: Utilize AWS services such as EC2, Lambda, RDS, DynamoDB, SQS, and others to ensure that applications are highly available, secure, and performant.
    • Microservices: Build and manage distributed, high-load microservices that can scale effectively and handle large volumes of concurrent traffic.
    • High-Performance Systems: Optimize Node.js applications for performance under high load, ensuring minimal latency and maximum throughput.
    • Multithreading: Implement advanced multithreading techniques to enhance system performance and concurrency.
    • Code Quality & Best Practices: Write clean, maintainable, and efficient code while adhering to industry best practices and design patterns.

       

      Required Qualifications:

    • Extensive Node.js Experience: 5+ years of hands-on experience with Node.js, including deep knowledge of its ecosystem, libraries, and frameworks.
    • Cloud Expertise (AWS): Proven experience designing and deploying applications in AWS, leveraging various AWS services (EC2, Lambda, SQS, DynamoDB, RDS, CloudWatch, etc.).
    • Microservices Architecture: Strong experience in building and maintaining microservices-based architectures, with an understanding of service discovery, API gateways, and asynchronous messaging.
    • High Load Systems: Experience architecting and building systems that handle high traffic and large-scale, real-time data processing.
    • Multithreading & Concurrency: Strong understanding of multithreading and concurrency management techniques in JavaScript/Node.js, including the use of worker threads and process management.
    • Database & Caching Systems: Experience working with both SQL and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB, Redis).
    • DevOps & CI/CD: Experience with continuous integration, continuous deployment, and infrastructure automation tools (e.g., Docker, Kubernetes, Jenkins, Terraform).

       

      Desired Qualifications:

    • Containerization & Orchestration: Familiarity with containerization (Docker) and orchestration tools (Kubernetes).
    • Advanced Monitoring & Logging: Experience setting up advanced monitoring, logging, and alerting systems using tools such as AWS CloudWatch, Datadog, or ELK Stack.
    • Security Best Practices: Understanding of secure coding practices and experience implementing security measures in cloud-based applications.
    More
  • Β· 0 views Β· 27 applications Β· 2d

    Backend Developer

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· Upper-Intermediate
    We're looking for an experienced and driven NodeJS backend developer to join our passionate team! We're building a next-generation platform designed to challenge conventional workflows and introduce smarter, more intuitive backend systems. The...

    We're looking for an experienced and driven NodeJS backend developer to join our passionate team!

    We're building a next-generation platform designed to challenge conventional workflows and introduce smarter, more intuitive backend systems. The architecture is focused on scalability, performance, and developer experience, enabling seamless integration and innovation. This is an opportunity to work on high-impact, meaningful features that will power real-world applications used by thousands.



    Responsibilities:

    • Develop and maintain scalable backend services with Node.js
    • Build and optimise RESTful APIs
    • Work with SQL/NoSQL DBs
    • Ensure code is clean, well-tested, and production-ready
    • Collaborate with cross-functional teams to deliver high-quality features
    • Adapt to new tools and technologies as needed


    Requirements:

    • 5+ years of experience in backend development
    • Strong proficiency in Node.jsTypeScript, and JavaScript (ES6+)
    • Solid understanding of REST architecture
    • Experience with NoSQL and SQL databases
    • Able to work autonomously and deliver quality under tight timelines
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  • Β· 0 views Β· 42 applications Β· 2d

    Senior Node.js Engineer

    Full Remote Β· Worldwide Β· 5 years of experience Β· Upper-Intermediate
    Job Overview: We are looking for a highly skilled and experienced Backend Developer to help us build and maintain robust, scalable, and efficient microservices using NestJS. In this role, you'll work on a variety of high-impact projects, including...

    Job Overview:

    We are looking for a highly skilled and experienced Backend Developer to help us build and maintain robust, scalable, and efficient microservices using NestJS. In this role, you'll work on a variety of high-impact projects, including real-time messaging systems, cloud infrastructure, and cutting-edge video streaming technology. You will have the opportunity to collaborate with a talented team to design and implement new features, optimize existing systems, and help shape the future of our platform.

    Key Responsibilities:

    • Design, develop, and maintain scalable microservices architectures using NestJS.
    • Work on real-time communication features, leveraging Kafka and MQTT for messaging and Sockets (native & Socket.IO) for low-latency, real-time interactions.
    • Collaborate closely with DevOps teams to ensure efficient deployment and operation of services in GCP and AWS environments.
    • Work on video streaming solutions and integrate video protocols (e.g., RTMP, HLS, WebRTC) to enhance user experience and support live media delivery.
    • Implement and optimize APIs and services to ensure high availability, performance, and scalability.
    • Contribute to architectural decisions, code reviews, and mentor junior engineers in best practices.
    • Stay up-to-date with emerging technologies and integrate them into development workflows as needed.
    • Assist in troubleshooting and resolving complex issues related to cloud infrastructure, real-time communication, and system performance.

    Required Qualifications:

    • 3+ years of experience in NestJS or similar backend frameworks (e.g., Express.js, Koa.js).
    • Strong experience with microservices architecture and distributed systems.
    • Proficiency with messaging systems such as Kafka or MQTT.
    • Hands-on experience working with Socket.IO or native socket programming for real-time applications.
    • Experience with cloud platforms Google Cloud Platform (GCP) and Amazon Web Services (AWS).
    • Solid understanding of containerization technologies, with exposure to Kubernetes for container orchestration.
    • Strong proficiency in modern programming languages such as JavaScript/TypeScript (Node.js) and/or Go / Rust.
    • Familiarity with CI/CD pipelines and version control systems (e.g., Git).
    • Experience with databases (SQL/NoSQL) and caching technologies (e.g., Redis).

    Preferred Qualifications:

    • Experience working with video streaming protocols (e.g., HLS, RTMP, WebRTC).
    • Proficiency in Go or Rust for building high-performance backend services.
    • Experience working in an agile environment with a strong emphasis on continuous improvement.
    • Knowledge of security best practices for API design, data protection, and infrastructure.
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  • Β· 67 views Β· 26 applications Β· 3d

    Back-End Developer (Blockchain Enthusiast)

    Full Remote Β· Countries of Europe or Ukraine Β· 1 year of experience Β· Intermediate
    Are you passionate about blockchain technology? Join our team and kickstart your career in blockchain development! We offer a unique opportunity to attend our internal school, where you will receive training to master advanced blockchain concepts and...

    Are you passionate about blockchain technology? Join our team and kickstart your career in blockchain development! We offer a unique opportunity to attend our internal school, where you will receive training to master advanced blockchain concepts and technologies.

     

    πŸ”₯ This position is an internship opportunity at our internal blockchain school, with the possibility of a $1200 reward for successful completion and an offer for a long-term partnership πŸ”₯

     

    Requirements ⬇️

     

    • Degree in Computer Science or a related field, or equivalent practical experience.
    • Knowledge of back-end development (NodeJS or other technologies).
    • Proficiency in English (B1 level or higher).
    • Basic understanding of cryptography (symmetric/asymmetric encryption, hash functions).
    • Strong knowledge of algorithms and data structures.
    • Knowledge of testing tools and best practices.
    • Strong analytical and debugging skills.

     

    Responsibilities ⬇️

     

    • Write and manage smart contracts.
    • Design, develop, and maintain backend infrastructure for blockchain platforms.
    • Implement and run tests to ensure the reliability and performance of applications.
    • Integrate blockchain protocols and APIs into backend systems.

     

    We offer ⬇️

     

    • Comprehensive blockchain training in a supportive learning environment.
    • Reward of $1200 upon successful completion of training, and also a job offer.
    • Opportunities for professional growth and career advancement.
    • Participation in challenging and innovative projects.
    • Fully remote work. 
    • Competitive salary.
    • English language courses.
    • Paid vacation and sick leave.
    • A friendly, open-minded, and supportive team 😊

     

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  • Β· 65 views Β· 21 applications Β· 3d

    Node.js Developer

    Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· Pre-Intermediate
    Sharkscode is looking for a Node.js Engineer to join our team! To achieve the results you’ll need: - 3+ years of commercial development experience with Node.js, Express.js; - Deep knowledge of MongoDB, MySQL, PostgreSQL(optional), redis(optional); -...

    Sharkscode is looking for a Node.js Engineer to join our team!

     

    To achieve the results you’ll need:
    - 3+ years of commercial development experience with Node.js, Express.js;
    - Deep knowledge of MongoDB, MySQL, PostgreSQL(optional), redis(optional);
    - Experience with queues (rabbit);
    - Experience in connecting third-party services, designing/writing API;
    - Understanding of the specifics of working with distributed systems

     

    Will be a plus:
    - TypeScript, nest;
    - Experience in covering code with autotests (Unit/Integration/E2E);
    - Experience with high-load systems

     

    How exactly you'll influence the company’s progress:
    - Design and develop a product;
    - Develop integrations with third-party financial and technical services;
    - Design and develop public payment web services and internal microservices;
    - Participate in decision-making on the feasibility of using certain technologies/practices at the platform level;
    - Follow a development culture and share the knowledge already acquired with the team.

     

    For comfortable and effective cooperation we offer the following:
    - Opportunity to influence and feel your impact inside the company;
    - Compensation that grows alongside your achievements;
    - Paid vacation (17 days/year) and sick leaves;
    - Medical insurance;
    - Budget for conferences, seminars, and training that will help you grow as a professional;
    - Free English courses;
    - Flexible working hours;
    - We have a cozy, modern office filled with everything you need in the historic center of Kyiv with free parking places.

     

    Our stages: 

    Interview with recruiter-> Tech Interview-> Offer

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  • Β· 84 views Β· 24 applications Β· 3d

    Backend Developer - Node.js

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· Pre-Intermediate
    Like good concrete, we have everything mixed correctly: time, rhythm and people. All we need to do is add you, and we can keep pouring. Ingredients for the perfect batch: - 3+ years of commercial development experience with Node.js, Express.js; - Deep...

    Like good concrete, we have everything mixed correctly: time, rhythm and people. All we need to do is add you, and we can keep pouring. 
     

    πŸ’ͺIngredients for the perfect batch:

    - 3+ years of commercial development experience with Node.js, Express.js;
    - Deep knowledge of MongoDB, MySQL, PostgreSQL (optional), Redis (optional);

    - Experience in gambling sphere;
    - Experience with message queues (RabbitMQ or similar);
    - Experience in integrating third-party services (including odds providers, sports data feeds, and risk management systems);
    - Understanding of distributed systems and their specifics in real-time betting environments

     

    πŸ”The things that will make your blend top notch:
    - Experience with TypeScript, NestJS;
    - Experience in writing and maintaining automated tests (Unit/Integration/E2E);
    - Experience with high-load systems, especially those handling large volumes of live sports data and bet transactions;
    - Knowledge of sport

     

    πŸ€“How You Will Influence the Company’s Progress:
    - Develop and optimize sportsbook-specific features, including real-time odds processing, bet settlement, and live event updates;
    - Integrate with sports data providers;
    - Ensure scalability and high availability of backend systems to handle peak loads during major sporting events;
    - Develop and maintain API integrations with external payment systems, fraud detection tools, and internal analytics dashboards;
    - Participate in strategic technology decisions, optimizing performance and ensuring compliance with industry regulations;
    - Foster a strong development culture, mentor the team, and share knowledge on best practices in sportsbook backend development.

     

    🀩A package of strong terms and conditions :
    - The opportunity to influence and feel your impact within the company;
    - Compensation that grows with your achievements;
    - Paid vacation and sick leave;
    - Health insurance;
    - A budget for conferences, seminars, and training to help you grow professionally;
    - Free English language courses;
    - Flexible working hours;
    - A cozy, modern office with all necessary amenities in the historic center of Kyiv.

     

     

    πŸ“ŒStages of the interview:
     Interview with recruiter -> Tech Interview ->Offer


    Is this all about you? Hurry up and send your CV and we will contact you soon 🀳

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  • Β· 113 views Β· 45 applications Β· 3d

    Middle/Senior Node.js Developer to $5000

    Full Remote Β· Countries of Europe or Ukraine Β· 3 years of experience Β· Intermediate
    Stack: Node.js (TypeScript), AWS (focus on AWS Lambda), MySQL, Docker, Microservices, Serverless We are seeking an experienced Node.js Developer to join our team of talented developers for a stable yet dynamic project. As the Node.js Developer, you...

    Stack: Node.js (TypeScript), AWS (focus on AWS Lambda), MySQL, Docker, Microservices, Serverless

     

    We are seeking an experienced Node.js Developer to join our team of talented developers for a stable yet dynamic project.

     

    As the Node.js Developer, you will play an integral role in developing, maintaining, and refactoring the existing codebase of a multi-service product with complex logic. You will work closely with our experienced Backend team and use the latest stack.

     

    About the project:

    A stable enterprise product for creating marketing presentations, preparing accompanying materials, and developing sales cycle business assistants for global pharmaceutical companies such as AstraZeneca, Novartis, Pfizer, Veeva etc., and financial institutions like ING and Van Lanschot. Completely our code base, we have been developing it since 2015.

     

    Our services are distributed across multiple Availability Zones, adhering to a service-oriented architecture. Since 2018, we have prioritized GraphQL, although we maintain comprehensive support for RESTful APIs. Our core API services are built on a diverse stack of programming languages, each chosen to optimize task performance. This stack includes a rapidly evolving Golang Core API, legacy Core API services in PHP (leveraging frameworks like Laravel and Yii2) for established business logic and data layer interactions, Node.js (utilizing both JavaScript and TypeScript), Python APIs, and .NET Core C# components.

     

    We utilize a hybrid cloud infrastructure, harnessing the strengths of both AWS and GCP to meet our operational needs, and focus on Serverless. Our work also involves extensive integration with API partners, including Veeva, Salesforce, and a variety of others, to ensure a seamless and robust service ecosystem.

     

    As a product with high-security requirements, we undergo regular penetration testing from auditors and client companies to ensure compliance with industry standards such as OWASP, SOC, and ISO.

     

    Essentials:

    - Advanced knowledge of Node.js, with experience in AWS Lambda, AWS Step Functions, Express, NestJS

    - Proficiency in software testing, including unit, integration, functional, and regression testing.

    - Expertise in performance monitoring, optimization techniques, and troubleshooting.

    - Strong knowledge of SQL and an understanding of transactions.

    - Understanding of OOP, design patterns, cryptography, algorithms, and data structures.

    - Versatility and comprehension of how all aspects of a web project work together (frontend, backend, and the network layer).

    - Basic System Design skills.

    - English reading and writing: Upper Intermediate.

    - English speaking: Lower Intermediate.

     

    Nice-to-haves:

    - Development experience with Golang, PHP.

    - Proficiency in developing tests, including unit, integration, functional, and regression testing.

    - Knowledge of serverless architectures, especially AWS.

    - Experience in building APIs using REST and GraphQL.

    - Understanding of EDA, Microservices, Hexagonal Architecture.

    - Proficiency in Docker.

    - Experience with CI/CD Pipelines.

    - Familiarity with agile methodologies (Scrum, Kanban)

    - Degree in Computer Science.

    - English speaking: Upper Intermediate.

     

    Benefits:

    In addition to a great base salary, we offer:

    1) Funding for conferences, co-working spaces, software licenses, and other work-related expenses

    2) MacBook if you require one

    3) Mobile devices if you are involved with mobile development projects

    4) Flexible working hours and fully remote working without micromanagement

    5) Modern technology stack

    6) Time for open source development

    7) Bonus at the end of the year

    8) Paid study leave

    9) Paid English language courses

    10) 36 company-paid days off per annum

    11) Access to educational streaming services like Pluralsight

    12) Input on the development of the company

     

    Our core values:

    We are open-minded, humble, respectful, self-driven, and honest, which allows us to create an atmosphere of synergy. Our team is a great fit for those who value self-organization and are passionate about personal growth. If this resonates with you, we’d love to have you join the team.

     

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  • Β· 87 views Β· 34 applications Β· 4d

    Middle Backend Developer (Node.js)

    Full Remote Β· Europe except Ukraine Β· Product Β· 3 years of experience Β· Upper-Intermediate
    We are seeking an experienced Middle Backend Developer (Node.js). Role Overview: We are looking for a talented Middle Backend Developer with strong experience in Node.js to join our client's development team. Key Responsibilities: Creating new and...

    We are seeking an experienced Middle Backend Developer (Node.js).
     

    Role Overview:
    We are looking for a talented Middle Backend Developer with strong experience in Node.js to join our client's development team.

    Key Responsibilities:

    • Creating new and improving our existing platforms;
    • Writing reusable, testable, and efficient code;
    • Performing technical assessment of business requirements to ensure the possibility of their implementation within a reasonable time;
    • Be proactive in communication;
    • Supporting team members.
       

    Ideal profile for the position:

    • 3+ years of experience as a Node.js Developer
    • Deep knowledge of pure JavaScript;
    • Knowledge and experience with NestJS;
    • Relevant experience with TypeORM, Redis, Docker;
    • Experience with PostgreSQL;
    • Understanding and experience with Git.
       

    Will be advantages:

    • Experience with Jest and Supertest (e2e testing);
    • Experience with ELK/Opensearch stack;
    • Experience with Python.
       

    The company guarantees you the following benefits:

    • Global Collaboration: Join an international team where everyone treats each other with respect and moves towards the same goal;
    • Autonomy and Responsibility: Enjoy the freedom and responsibility to make decisions without the need for constant supervision.
    • Competitive Compensation: Receive competitive salaries reflective of your expertise and knowledge as our partner seeks top performers.
    • Remote Work Opportunities: Embrace the flexibility of fully remote work, with the option to visit company offices that align with your current location.
    • Flexible Work Schedule: Focus on performance, not hours, with a flexible work schedule that promotes a results-oriented approach;
    • Unlimited Paid Time Off: Prioritise work-life balance with unlimited paid vacation and sick leave days to prevent burnout;
    • Career Development: Access continuous learning and career development opportunities to enhance your professional growth;
    • Corporate Culture: Experience a vibrant corporate atmosphere with exciting parties and team-building events throughout the year;
    • Referral Bonuses: Refer talented friends and receive a bonus after they successfully complete their probation period;
    • Medical Insurance Support: Choose the right private medical insurance and receive compensation (full or partial) based on the cost;
    • Flexible Benefits: Customise your compensation by selecting activities or expenses you'd like the company to cover, such as a gym subscription, language courses, Netflix subscription, spa days, and more;
    • Education Foundation: Participate in a biannual raffle for a chance to learn something new unrelated to your job as part of your commitment to ongoing education.
       

    Interview process:

    • A 30-minute interview with a Recruiter to get to know you and your experience;
    • A 1-hour technical interview to assess your skills and abilities;
    • A final 1.5-hour interview with 3 team members to gauge your fit with company culture and working style.
       

    If you find this opportunity right for you, don't hesitate to apply or get in touch with us if you have any questions!

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  • Β· 73 views Β· 20 applications Β· 4d

    Middle-Senior Fullstack Node.js + React Developer

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 4 years of experience Β· Upper-Intermediate
    You’re the Right Fit If You Have: - 4-6 years of experience with React and Node.js - Experience in TypeScript - Knowledge of one of the cloud providers (AWS, Google Cloud or Azure) - Spoken/written English B2+ (we conduct the technical interview in...

    You’re the Right Fit If You Have:

    - 4-6 years of experience with React and Node.js
    - Experience in TypeScript 
    - Knowledge of one of the cloud providers (AWS, Google Cloud or Azure) 
    - Spoken/written English B2+ (we conduct the technical interview in English)


    What We Offer

    • Salary paid at the beginning of each month
    • All official public holidays are non-working days
    • 20 vacation days per year:
      • 1.25 vacation days earned each month
      • +5 bonus days off after one year of partnership
    • 15 calendar days of paid sick leave
    • Taxes and bank fees are not covered
    • 3-month probation period
    • English language lessons


    Hiring Process

    1. 1-hour interview with HR, including a technical prescreening in English (recorded for internal tech team review)
    2. 1-hour technical interview
    3. 30-minute final interview with the CTO
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