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Lead Node.js Developer
Full Remote Β· Ukraine Β· Product Β· 6 years of experienceRequirements: 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· IntermediateΠΡΠ΄ΠΊΡΠΈΡΠ° ΠΏΠΎΠ·ΠΈΡΡΡ Senior Backend Engineer (Node.js/Go) Π΄Π»Ρ Π²ΡΠ΄Π΄Π°Π»Π΅Π½ΠΎΡ ΡΠΎΠ±ΠΎΡΠΈ. ΠΡΡΡΠΎΡΡ ΠΊΠΎΠΌΠΏΠ°Π½ΡΡ ΡΠΏΡΠ²ΠΏΡΠ°ΡΡΡ Π· ΠΊΠΎΠΌΠΏΠ°Π½ΡΡΠΌΠΈ Π·Ρ ΡΠΏΠΈΡΠΊΡ Fortune 500 ΡΠ° Π΄ΠΎΠ±ΡΠ΅ ΡΡΠ½Π°Π½ΡΠΎΠ²Π°Π½ΠΈΠΌΠΈ ΡΡΠ°ΡΡΠ°ΠΏΠ°ΠΌΠΈ, ΡΠΎΠ± Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΡΠΈ Π²ΡΡΠ»ΠΈΡΠΈ Π½ΠΎΠ²Ρ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈ Π² ΠΆΠΈΡΡΡ: Π¦Π΅ ΠΊΠΎΠΌΠ°Π½Π΄Π° ΠΏΠΎΠ½Π°Π΄ 200...ΠΡΠ΄ΠΊΡΠΈΡΠ° ΠΏΠΎΠ·ΠΈΡΡΡ Senior Backend Engineer (Node.js/Go) Π΄Π»Ρ Π²ΡΠ΄Π΄Π°Π»Π΅Π½ΠΎΡ ΡΠΎΠ±ΠΎΡΠΈ.
βοΈ ΠΡΡΡΠΎΡΡ ΠΊΠΎΠΌΠΏΠ°Π½ΡΡ ΡΠΏΡΠ²ΠΏΡΠ°ΡΡΡ Π· ΠΊΠΎΠΌΠΏΠ°Π½ΡΡΠΌΠΈ Π·Ρ ΡΠΏΠΈΡΠΊΡ Fortune 500 ΡΠ° Π΄ΠΎΠ±ΡΠ΅ ΡΡΠ½Π°Π½ΡΠΎΠ²Π°Π½ΠΈΠΌΠΈ ΡΡΠ°ΡΡΠ°ΠΏΠ°ΠΌΠΈ, ΡΠΎΠ± Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΡΠΈ Π²ΡΡΠ»ΠΈΡΠΈ Π½ΠΎΠ²Ρ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈ Π² ΠΆΠΈΡΡΡ:
Π¦Π΅ ΠΊΠΎΠΌΠ°Π½Π΄Π° ΠΏΠΎΠ½Π°Π΄ 200 ΡΠ½ΠΆΠ΅Π½Π΅ΡΡΠ², Π΄ΠΈΠ·Π°ΠΉΠ½Π΅ΡΡΠ², Π°Π½Π°Π»ΡΡΠΈΠΊΡΠ² ΡΠ° ΠΊΠΎΠ½ΡΡΠ»ΡΡΠ°Π½ΡΡΠ², ΡΠΊΡ Π²ΠΈΡΡΡΡΡΡΡ ΡΠΊΠ»Π°Π΄Π½Ρ Π±ΡΠ·Π½Π΅Ρ-Π·Π°Π²Π΄Π°Π½Π½Ρ Π·Π° Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΠΎΡ ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΡΠΉ.
βοΈ ΠΠ»ΡΡΠ½Ρ ΠΏΡΠΎΠ΅ΠΊΡΡ β Π°ΠΌΠ΅ΡΠΈΠΊΠ°Π½ΡΡΠΊΠ° ΠΊΠΎΠΌΠΏΠ°Π½ΡΡ, ΡΠΊΠ° ΠΏΠΎΡΡΠ²Π½Ρ Π·Π°ΠΉΠΌΠ°ΡΡΡΡΡ ΠΏΡΠΎΠ΄Π°ΠΆΠ΅ΠΌ ΠΏΡΠΎΡΠ΅ΡΡΠΉΠ½ΠΎΠ³ΠΎ ΠΎΠ±Π»Π°Π΄Π½Π°Π½Π½Ρ ΡΠ° ΡΠΏΠΎΠΆΠΈΠ²ΡΠΎΠ³ΠΎ ΠΎΠ±Π»Π°Π΄Π½Π°Π½Π½Ρ, Π²ΠΈΠ·Π½Π°Π½ΠΈΠΉ Π»ΡΠ΄Π΅Ρ Ρ ΡΡΠ΅ΡΡ ΡΠΏΡΠ°Π²Π»ΡΠ½Π½Ρ Π±ΡΠ΄ΠΈΠ½ΠΊΠΎΠΌ ΡΠ° Π°Π²ΡΠΎΠΌΠ°ΡΠΈΠ·Π°ΡΡΡ, Π° ΡΠ°ΠΊΠΎΠΆ ΠΎΠ΄Π½Π° Π· Π½Π°ΠΉΠ±ΡΠ»ΡΡ ΡΠ²ΠΈΠ΄ΠΊΠΎΠ·ΡΠΎΡΡΠ°ΡΡΠΈΡ ΠΊΠΎΠΌΠΏΠ°Π½ΡΠΉ Ρ ΡΡΠ΅ΡΡ ΡΠΎΠ·ΡΠΌΠ½ΠΎΠ³ΠΎ Π΄ΠΎΠΌΡ Π½Π° ΡΠΈΠ½ΠΊΠ°Ρ . Π‘ΡΠ²ΠΎΡΡΡΠΌΠΎ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈ, ΡΠΊΡ Ρ Π²ΠΈΠ½Π°Ρ ΡΠ΄Π»ΠΈΠ²ΠΈΠΌΠΈ, ΠΏΡΠΎΡΡΠΈΠΌΠΈ Ρ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ ΡΠ° ΠΎΡΡΡΠ½ΡΠΎΠ²Π°Π½ΠΈΠΌΠΈ Π½Π° ΠΌΠ°ΠΉΠ±ΡΡΠ½Ρ, ΡΠΎΠ± ΠΊΠ»ΡΡΠ½ΡΠΈ ΠΌΠΎΠ³Π»ΠΈ ΠΊΠΎΡΠΈΡΡΡΠ²Π°ΡΠΈΡΡ Π½ΠΈΠΌΠΈ ΡΠΎΠΊΠ°ΠΌΠΈ.
βοΈΠ―ΠΊ ΡΠ»Π΅Π½ ΠΊΠΎΠΌΠ°Π½Π΄ΠΈ IoT Cloud Software, Π²ΠΈ Π±ΡΠ΄Π΅ΡΠ΅ ΡΠΎΠ·ΡΠΎΠ±Π»ΡΡΠΈ, ΠΏΡΠΎΠ΅ΠΊΡΡΠ²Π°ΡΠΈ, ΡΠΏΡΠ²ΠΏΡΠ°ΡΡΠ²Π°ΡΠΈ ΡΠ° Π²ΡΡΠ»ΡΠ²Π°ΡΠΈ Π² ΠΆΠΈΡΡΡ IoT-ΡΡΡΠ΅Π½Π½Ρ ΡΠ°Π·ΠΎΠΌ Π· ΠΊΠ²Π°Π»ΡΡΡΠΊΠΎΠ²Π°Π½ΠΈΠΌΠΈ ΡΠ½ΠΆΠ΅Π½Π΅ΡΠ°ΠΌΠΈ Π· ΠΊΠΎΠΌΠ°Π½Π΄ ΠΌΠΎΠ±ΡΠ»ΡΠ½ΠΈΡ ΠΏΡΠΈΡΡΡΠΎΡΠ², ΠΏΡΠΎΡΠΈΠ²ΠΎΠΊ ΡΠ° ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ ΡΠΊΠΎΡΡΡ. Π ΠΎΠ·ΡΠΌΡΡΡΠΈ ΡΠ° Π²ΡΡΠ»ΡΡΡΠΈ Π±Π°ΡΠ΅Π½Π½Ρ ΠΏΡΠΎΠ΄ΡΠΊΡΡΠ² Π½Π°ΡΡΡΠΏΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠΊΠΎΠ»ΡΠ½Π½Ρ, Π²ΠΈ ΡΡΠ²ΠΎΡΡΠ²Π°ΡΠΈΠΌΠ΅ΡΠ΅ Π½Π°Π΄ΡΠΉΠ½Ρ, ΠΌΠ°ΡΡΡΠ°Π±ΠΎΠ²Π°Π½Ρ Ρ ΠΌΠ°ΡΠ½Ρ ΡΡΡΠ΅Π½Π½Ρ ΡΠΊ ΠΎΡΠ½ΠΎΠ²Ρ Π΄Π»Ρ IoT-ΠΏΠΎΡΠ»ΡΠ³.
βοΈ ΠΠ±ΠΎΠ²'ΡΠ·ΠΊΠΎΠ²ΠΈΠΉ Π΄ΠΎΡΠ²ΡΠ΄ ΡΠΎΠ±ΠΎΡΠΈ Π·:
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- JavaScript,
- Π²ΠΈΡΠΎΠΊΠΎΠ½Π°Π²Π°Π½ΡΠ°ΠΆΠ΅Π½ΠΈΠΌΠΈ ΡΠΈΡΡΠ΅ΠΌΠ°ΠΌΠΈ,
- Go,
- AWS. -
Β· 0 views Β· 9 applications Β· 2d
Senior Backend Engineer
Full Remote Β· Ukraine Β· Product Β· 5 years of experience Β· Upper-IntermediateΠur ΡlΡΠ΅nt Ρs lΠΎΠΎkΡng fΠΎr Π° strΠΎng ΡndΡvΡduΠ°l ΡΠΎntrΡbutΠΎr whΠΎ ΡΠ°n tΠ°kΠ΅ ΠΎwnΠ΅rshΡp Π°nd lΠ΅Π°d bΠ°ΡkΠ΅nd dΠ΅vΠ΅lΠΎpmΠ΅nt wΡthΡn thΠ΅ Πpp tΠ΅Π°m. LΠΎΡΠ°tΡΠΎn β rΠ΅mΠΎtΠ΅lΡ ThΠ΅ ΡdΠ΅Π°l ΡΠ°ndΡdΠ°tΠ΅ prΠΎfΡlΠ΅ ΡnΡludΠ΅s: 5+ ΡΠ΅Π°rs ΠΎf prΠΎfΠ΅ssΡΠΎnΠ°l sΠΎftwΠ°rΠ΅ Π΅ngΡnΠ΅Π΅rΡng Π΅xpΠ΅rΡΠ΅nΡΠ΅ Πt...Πur ΡlΡΠ΅nt Ρs lΠΎΠΎkΡng fΠΎr Π° strΠΎng ΡndΡvΡduΠ°l ΡΠΎntrΡbutΠΎr whΠΎ ΡΠ°n tΠ°kΠ΅ ΠΎwnΠ΅rshΡp Π°nd lΠ΅Π°d bΠ°ΡkΠ΅nd dΠ΅vΠ΅lΠΎpmΠ΅nt wΡthΡn thΠ΅ Πpp tΠ΅Π°m.
LΠΎΡΠ°tΡΠΎn β rΠ΅mΠΎtΠ΅lΡ
ThΠ΅ ΡdΠ΅Π°l ΡΠ°ndΡdΠ°tΠ΅ prΠΎfΡlΠ΅ ΡnΡludΠ΅s:
- 5+ ΡΠ΅Π°rs ΠΎf prΠΎfΠ΅ssΡΠΎnΠ°l sΠΎftwΠ°rΠ΅ Π΅ngΡnΠ΅Π΅rΡng Π΅xpΠ΅rΡΠ΅nΡΠ΅
- Πt lΠ΅Π°st 1 ΡΠ΅Π°r Ρn Π° sΠ΅nΡΠΎr-lΠ΅vΠ΅l pΠΎsΡtΡΠΎn, wΡth dΠ΅mΠΎnstrΠ°tΠ΅d ΠΎwnΠ΅rshΡp Π°nd lΠ΅Π°dΠ΅rshΡp Ρn prΠΎjΠ΅Ρts ΠΎr sΡstΠ΅ms
- MΡnΡmum ΠΎf 3 ΡΠ΅Π°rs wΠΎrkΡng Ρn prΠΎduΡt ΡΠΎmpΠ°nΡΠ΅s, wΡth thΠ΅ mΠΎst rΠ΅ΡΠ΅nt Π΅xpΠ΅rΡΠ΅nΡΠ΅ Π°t Π° prΠΎduΡt-bΠ°sΠ΅d ΡΠΎmpΠ°nΡ
- PrΠΎduΡt mΡndsΠ΅t β sΠΎmΠ΅ΠΎnΠ΅ whΠΎ Ρs mΠΎtΡvΠ°tΠ΅d
- bΡ ΡrΠ΅Π°tΡng ΡmpΠ°Ρt, undΠ΅rstΠ°nds usΠ΅r nΠ΅Π΅ds, Π°nd ΡΠΎnnΠ΅Ρts tΠ΅ΡhnΡΡΠ°l dΠ΅ΡΡsΡΠΎns tΠΎ prΠΎduΡt ΠΎutΡΠΎmΠ΅s
- 3+ ΡΠ΅Π°rs ΠΎf hΠ°nds-ΠΎn bΠ°ΡkΠ΅nd Π΅xpΠ΅rΡΠ΅nΡΠ΅,
- pΠ°rtΡΡulΠ°rlΡ wΡth NΠΎdΠ΅.js, Π°nd ΡdΠ΅Π°llΡ Π΅xpΠ΅rΡΠ΅nΡΠ΅ wΡth ΠWS, PΠΎstgrΠ΅SQL, mΡΡrΠΎsΠ΅rvΡΡΠ΅s, Π°nd sΡΠ°lΠ°blΠ΅ Π°rΡhΡtΠ΅ΡturΠ΅
- StrΠΎng ΡΠΎmmunΡΡΠ°tΡΠΎn skΡlls Π°nd thΠΎughtfulnΠ΅ss
- Π‘lΠ΅Π°r mΠΎtΡvΠ°tΡΠΎn tΠΎ grΠΎw, ΡΠΎntrΡbutΠ΅ tΠΎ Π° smΠ°ll Π°nd fΠ°st-pΠ°ΡΠ΅d tΠ΅Π°m, Π°nd buΡld Π° prΠΎduΡt wΡth rΠ΅Π°l usΠ΅r vΠ°luΠ΅
NΡΡΠ΅-tΠΎ-hΠ°vΠ΅s:
- ΠxpΠ΅rΡΠ΅nΡΠ΅ wΡth sΡmΡlΠ°r prΠΎduΡts (dΠ°tΠ°-hΠ΅Π°vΡ plΠ°tfΠΎrms, SΠ°Π°S, fΡnΠ°nΡΡΠ°l Π°nΠ°lΡtΡΡs)
- RΠ΅lΠ΅vΠ°nt Π΅duΡΠ°tΡΠΎn ΠΎr ΡΠ΅rtΡfΡΡΠ°tΡΠΎns
- FrΠΎntΠ΅nd fΠ°mΡlΡΠ°rΡtΡ wΡth RΠ΅Π°Ρt ΠΎr sΡmΡlΠ°r frΠ°mΠ΅wΠΎrks Ρs Π° bΠΎnus, but nΠΎt Π΅ssΠ΅ntΡΠ°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· IntermediateWeβre 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. Youβll work on integrating multiple payment providers, ensuring seamless...Weβre 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.
Youβll 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 weβd love to connect!How Youβll 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 PostgreSQLβdesigning 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 30β40 min intro call with our Talent Partner to get to know you and share project details, followed by one technical interview. Weβll cover your experience, project details, and the challenges weβre solving. We value your time and aim to move fast.
Your next challenge is waiting. Letβs connect, talk about the impact we can make, and see if weβre 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.
Weβre a small, ambitious, senior-level team working with top-tier financial clients. Weβre passionate about finance, trading, and creating systems that donβt 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 youβll 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 youβre good, weβll make you great
- Impact β your code goes live, fast. Youβll 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-IntermediateAdaptiq 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
- Bachelorβs 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.
More -
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-IntermediateWho 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 β Backend oriented β Node.js;
- Experience with Frontend β 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/FluentRole 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.
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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-IntermediateWe'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.js, TypeScript, 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-IntermediateJob 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· IntermediateAre 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.
π₯ 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 π₯
Requirements β¬οΈ
- 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 β¬οΈ
- 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 β¬οΈ
- 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 π
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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-IntermediateSharkscode is looking for a Node.js Engineer to join our team! To achieve the results youβll 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 youβll 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 systemsWill be a plus:
- TypeScript, nest;
- Experience in covering code with autotests (Unit/Integration/E2E);
- Experience with high-load systemsHow exactly you'll influence the companyβs 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-IntermediateLike 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.
πͺIngredients 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 environmentsπThe 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 sportπ€How You Will Influence the Companyβs 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.π€©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.πStages of the interview:
Interview with recruiter -> Tech Interview ->Offer
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Is this all about you? Hurry up and send your CV and we will contact you soon π€³ -
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· IntermediateStack: 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, weβd 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-IntermediateWe 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-IntermediateYouβre 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...Youβre 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-hour interview with HR, including a technical prescreening in English (recorded for internal tech team review)
- 1-hour technical interview
- 30-minute final interview with the CTO