Jobs Node.js

We’re building a high-performance, intelligence-driven trading platform operating across Chat, Web, and internal data systems. 

We’re looking for a senior full-stack engineer who can take on large, ambiguous problems and turn them into production-grade features with minimal supervision. You should be deeply comfortable with React/Next.js frontends, Node.js backends, and modern application patterns.

You Will:

- Ship high-quality features end-to-end across Node.js APIs and Next.js frontends

- Optimize performance, data flows, caching, and component architecture

- Improve existing codebases with strong engineering discipline (testing, structure, clarity)

- Integrate with internal APIs, trading engines, and real-time data surfaces

- Operate independently inside high-tempo dev cycles

Requirements:

• 5+ years full-stack experience

• Expert in Node.js, React, Next.js

• Strong with TypeScript, API design, and system-level thinking

• Excellent communication - able to articulate reasoning and tradeoffs clearly

• Prior experience in fast-paced startups or high-ownership environments

Nice to Have:

• Experience with WebSockets, real-time systems

• Familiarity with PostgreSQL, Redis, caching layers

• Background in trading, finance, or data-intensive systems

• Experience in Solana, DeFi protocols, or trading systems

We are looking for a Full Stack Developer with strong experience in React, TypeScript, and Node.js (Express or NestJS) to join our team on a short-term client project (full-time for 1 month).
The ideal candidate is comfortable working across the entire stack — building intuitive, high-quality frontend interfaces while developing secure and performant backend services and APIs.

This role includes working with complex XML data flows, implementing XSD validation, and collaborating closely with DevOps and frontend engineers to deliver production-ready features within a tight timeframe.

Responsibilities

• Develop responsive, scalable UI components using React and TypeScript
• Build and maintain backend services using Node.js and Express
• Design and implement secure, performant REST APIs with validation, authentication, and rate-limiting
• Handle XML data workflows and apply XSD schema validation in backend systems
• Work with MongoDB, Mongoose, and Prisma ORM for efficient data management
• Manage authentication using JWT and bcryptjs
• Integrate third-party services: AWS S3 (file storage), Stripe (payments), Twilio (SMS), Nodemailer (emails)
• Handle file uploads securely using Multer and AWS SDK
• Generate documents using tools like pdfkit, puppeteer, and marked
• Write unit/integration tests, perform code reviews, and follow clean architecture practices

• Monitor application performance using tools like New Relic and Winston logging

   

Requirements

• 3+ years of professional experience in frontend development with React and TypeScript
• 3+ years of backend development experience using Node.js and Express
• Strong understanding of REST APIs, JSON/XML, and full-stack integration
• Practical experience working with XML/XSD validation
• Experience with Git/GitHub workflows and CI/CD pipelines

• Familiarity with containerized environments (Docker)

   

Nice to Have

• Experience with form-heavy interfaces, dashboards, or workflow-based UIs
• Familiarity with Redis for caching or real-time use cases
• Experience working in microservices architecture
• Understanding of accessibility (WCAG), responsive design, and performance optimization.

An innovative startup operating at the intersection of AI and real-time communication.

Our goal is to build a modern web application with intelligent algorithms, low-latency interactions, and a self-hosted infrastructure at its core.
 

Your responsibilities

• Develop and maintain a web application using Next.js
• Implement real-time features with WebRTC / LiveKit
• Work with Supabase (Postgres), including local development and setup
• Build clean, scalable UI using Tailwind CSS and shadcn/ui
• Improve system architecture, CI/CD, GitOps, and manage deployments on Vercel
• Actively use AI-powered tools (ChatGPT, Gemini, Claude, Cursor) in daily development workflows
   

Must-have requirements

• Strong expertise in Next.js and the React ecosystem
• Solid full-stack experience with TypeScript / JavaScript
• Hands-on experience with WebRTC (chat or video applications)
• Experience with an ORM: Drizzle (preferred) or Prisma
• Confident use of Git / GitOps
• Regular use of AI assistants for software development
   

Nice to have

• Experience with Stripe integration or Firebase
• Knowledge of Docker, GitLab CI/CD, and pipeline setup
• Familiarity with Cloudflare Workers or Edge Computing
• Basic knowledge of Python
   

Gamzix company, a dynamic player in the iGaming industry:

• Was founded in March 2020 with a vision to redefine the world of online slot games
• Has already successfully produced 60 slot games
• The team has grown to over 120 skilled professionals, and we continue to grow
• Our main hub is in Warsaw — right in the heart of Europe
• With a strong focus on quality and compliance, we hold the prestigious MGA B2B
• Critical Supply License and certifications from industry leaders iTechLabs and GLI, ensuring the highest standards

Hey there! 👋

The Gamzix team is growing, and we’re looking for a Junior Backend Engineer (Node.js) who is eager to grow, learn modern backend technologies, and contribute to the development of our slot games and internal systems under the guidance of experienced teammates.

If you’re passionate about backend development, want to work with real production systems, and grow within a strong engineering team — we’d love to meet you!

Responsibilities:

• Participate in the development and support of backend services under the guidance of senior engineers
• Assist in building and maintaining APIs
• Work with databases and backend logic (queries, data handling)
• Collaborate with the team on bug fixes, improvements, and new features
• Follow best practices for clean, readable, and maintainable code
• Learn and apply backend architecture principles, asynchronous processing, and system reliability concepts

Requirements:

• 1+ year of commercial or strong pet-project experience in backend development
• Basic to solid knowledge of Node.js and TypeScript
• Familiarity with NestJS (commercial or learning projects)
• Understanding of relational databases (PostgreSQL or similar)
• Basic experience or theoretical knowledge of Redis and message brokers (RabbitMQ or аналог)
• Understanding of REST APIs and backend fundamentals
• Willingness to learn, ask questions, and grow professionally

What we offer:

• Market-level salary in the IT/Gaming industry
• Relocation support to Warsaw
• Referral bonus — bring in awesome people and get rewarded
• Home-Office coverage
• 7-hour working day: 10:00–18:00 (including lunch break)
• Hybrid model in Warsaw; full remote — for other locations
• Paid Sick Leave: up to 10 working days per year
• Paid Time Off: 18 vacation days, 10 days off, paid state holidays
• Corporate benefits: medical coverage, sports compensation, psychological services compensation
• Professional Development Support: reimbursement for external courses, training & certifications
• Corporate English classes (Business or General) — flexible timing
• Buddy Program
• Internal Gamzix Store (earn coins & exchange for branded gifts)
• Corporate team building and activities
• Open and transparent communication — accessible C-levels, quick decision-making, friendly and supportive atmosphere
   

Our people are passionate professionals who truly enjoy what they do. At Gamzix, your ideas matter, teamwork drives results, and everyone keeps up with the fast-paced rhythm of the iGaming industry.
 

Please note: feedback on your application will be provided within two weeks if a positive decision is made regarding your candidacy.
 

I give my consent in accordance with the Law on the Protection of Personal Data dated June 1, 2010, No. 2297, effective from January 1, 2011, for the processing of personal data.

OneTablet builds software used daily by restaurants to run their online ordering across Uber Eats, DoorDash, Grubhub, and more — reliably, at scale, without chaos.

We’re an early-stage product company with real customers, real traffic, and real production problems. We’re looking for a senior backend engineer who owns systems end-to-end, is comfortable with ambiguity, and likes building infrastructure and integrations that don’t break at 7pm on Friday.

What you’ll do

• Build and own deep third-party integrations (DoorDash, Grubhub, POS systems, delivery platforms)
• Design reliable backend systems: ingestion, sync, reconciliation, retries, monitoring
• Work on infrastructure & scalability (GCP, Pub/Sub, queues, background workers)
• Use AI in daily work: debugging, refactoring, automation, internal tools, agents
• Take ownership from design → production → incidents → improvements

What we expect

• Strong backend experience (Node.js / TypeScript)
• Experience with integrations, APIs, webhooks, async flows
• Startup / product environment experience (early-stage, small teams, fast iteration)
• Production mindset: logging, monitoring, edge cases, failure modes
• High autonomy: you don’t wait for specs, you clarify and move
• Comfort using AI tools as part of development (Cursor, Claude, etc.)

Nice to have

• Experience with payments, ordering, POS, or marketplace platforms
• GCP, Pub/Sub, BigQuery, PostgreSQL
• Interest in automation and AI-first workflows

How we work

• Small senior team, no micromanagement
• High trust, high ownership
• Direct communication, fast decisions
• You build it → you own it

ABCloudz is a dynamic technology company specializing in software development, modernization, and digital transformation, with a strong focus on building AI-driven solutions.
We are looking for a motivated Trainee Software Engineer who is eager to grow in development and take part in AI research and implementation.
If you already have a foundation in JavaScript, TypeScript, and Python and want to develop your skills while working with AI and Web3 technologies, this is the perfect opportunity to start your career and Internship Program with us.

Requirements

• Willingness to learn and thirst for knowledge
• Basic knowledge of Object Oriented Programming
• Solid knowledge of Java Script and TypeScript
• Knowledge of Python
• Understanding of basic NodeJS concepts
• Understanding REST API
• Experience with Linux-like OSs, console
• Basic understanding of algorithms and data structures
• Basic knowledge of Git, Docker (console or UI clients)
• Experience with relational DBs, basic SQL knowledge

• At least the Intermediate level of English

   

Will be a plus

• Understanding WebSockets
• Understanding software architectures and architecture patterns
• Familiarity with module testing
• Understanding NoSQL DBMS (MongoDB, Redis)
• Familiarity with Nest.JS
• Familiarity with LLM and ML

• Familiarity with web3 technologies

   

Responsibilities

• Develop and maintain backend features using Node.js and NestJS under guidance
• Implement REST and basic GraphQL endpoints following existing patterns
• Contribute to microservice-based applications
• Implement simple inter-service communication using NATS or RabbitMQ. Handle basic event publishing and consuming
• Assist in integrating LLM-based features using existing SDKs or APIs
• Interact with blockchain networks using libraries
• Assist in implementing wallet-based authentication
• Implement and test smart contract interactions
• Write clean, readable, and well-documented code
• Fix bugs and address technical debt in existing services
• Write basic unit tests (Jest)
• Participate in code reviews (as a learner)

Bidpoint is a German AI-driven startup revolutionizing the tender and procurement market. We are building a high-load system for searching, indexing, and processing massive amounts of document data. We are looking for an engineer who views a database not just as a place to store JSON, but as a complex engine that needs to be tuned and scaled.

The Role: you’ll join a small, working directly with the founders

Focus: Scalable data handling, search engines, and large-scale document storage

No micromanagement & high autonomy

Stack

Core: Node.js / TypeScript

Database: deep PostgreSQL expertise (schema design, indexing, sharding, extensions like PostGIS)

Optional: Python, React/Next.js

Experience:

⁃ 5-8+ years in product-driven companies (BigTech or high-load product startups)
- Experience working with unstructured data and complex business logic – not just transforming or passing through structured JSON payloads
⁃ Database Mastery: you understand what happens under the hood of an ORM
⁃ Independence: ability to dive into unfamiliar domains and complex document structures without hand-holding
- Experience designing resilient backend architectures, including proper error handling and fallback strategies for external dependencies
- No outsource, no iGaming, no Crypto and no Studios experience

Studio 402 is a software studio focused on turning cutting-edge technologies into real, market-ready products and companies. We work across multiple projects in parallel, using a shared TypeScript/Node.js/React platform and an AI-first mindset.

Our values:

• Innovation first: We like to be early on new technologies, not late adopters.
• Ownership mindset: Engineers are product owners, not just ticket-takers.
• Technical excellence: We care about clean architecture, strong documentation, and long-term maintainability.
• Entrepreneurial spirit: We build with an eye toward real business impact and potential exits.
• Rapid adaptation: We move fast, adjust quickly, and learn in public.

The Role:

We are hiring a Founding Senior Software Engineer (senior to staff level) to act as the cross-cutting technical lead across several products in our portfolio.

You will:

• Own and evolve our shared TypeScript/Node.js/React platform.
• Set architecture patterns that other engineers follow.
• Partner directly with the founder on product and technical decisions.
• Stay hands-on: designing systems, writing code, reviewing pull requests, and shipping features.

This is an individual contributor role, not a people manager role, but your decisions will shape how other engineers build and ship.

What You Will Do:

Technical leadership

• Define and maintain architecture patterns across projects in our Node.js/TypeScript/React stack.
• Design scalable, well-documented APIs and backend systems used by multiple products.
• Establish shared libraries, tooling, and conventions so teams can move faster without reinventing the wheel.

• Make clear, documented technical decisions and communicate the reasoning behind them.

   

Hands-on building

• Ship high-quality features end to end: from backend design to React/Next.js implementation where needed.
• Integrate third-party APIs and services, including AI and large language model providers when they add real product value.
• Write clean, testable, maintainable code with a focus on long-term quality, not just short-term hacks.

• Create and maintain technical documentation that other engineers can rely on.

   

Product and ownership

• Work closely with the founder to translate business and product goals into technical strategies.
• Proactively propose improvements to products, architecture, and developer experience.
• Question requirements constructively and offer better solutions, not just point out problems.

• Take true ownership: surface risks early, suggest trade-offs, and follow through to shipped outcomes.

   

Team impact (without being a manager)

• Help other engineers make good architectural and implementation choices.
• Raise the bar on code quality, testing, and documentation through example and thoughtful review.

• Contribute to and refine the studio’s engineering practices, standards, and ownership culture.

   

What We Are Looking For:

Must-haves

• Senior-level experience (or above) building production systems in TypeScript and Node.js.
• Strong experience with modern frontend development using React.
• Proven track record of owning complex features or systems end to end: design, build, launch, iterate.
• Comfort operating in ambiguous environments: you can clarify requirements, propose approaches, and make decisions without needing rigid specifications.
• High ownership mindset: you think in terms of product and business impact, not just tasks completed.
• Strong communication skills: you document decisions, keep stakeholders updated, and communicate risks early.
• Experience designing APIs and backend architectures that serve multiple clients or products.

• Solid understanding of engineering fundamentals: data modeling, caching, performance, observability, testing.

   

AI and agents

• Real interest in AI and agents, with enough experience to integrate large language models or related services into products, for example calling an LLM API, designing prompts, or wiring tools.

• Excitement about using AI to build better products and workflows, even without a research background.

   

Nice-to-haves

• Experience acting as a de facto tech lead or staff-level individual contributor in a startup, studio, or multi-product environment.
• Experience with React Native or mobile development.
• Exposure to building internal platforms or shared component libraries for multiple teams or products.
• Experience with modern DevOps practices such as continuous integration and deployment, cloud infrastructure, and monitoring, sufficient to collaborate effectively with infrastructure-focused teammates.

• Prior work in early-stage companies or studios where you helped define engineering culture and practices.

   

Who You Are

• You are a builder who prefers shipping real things to only discussing them.
• You are energized by ambiguity and open problem spaces, not frustrated by them.
• You care about both the architecture and the user: you think about how your decisions affect the product and the business.
• You are comfortable being accountable: you make decisions, document them, and own the outcomes.
• You prefer lightweight process and clear ownership over heavy process and bureaucracy.

• You are not looking for a pure research role or a pure management role; you want to stay close to the code and the product.

   

How We Work

• Flat structure with direct communication between you, the founder, and the rest of the team.
• Multiple products in parallel, giving you exposure to a variety of problems and domains.
• Documentation and ownership: decisions get written down, and engineers are trusted to act on them.

• Remote-first: we work fully remotely and optimize for written communication and clear expectations.

   

Compensation

We offer a competitive salary and meaningful equity for the right person. Exact details will be discussed directly with candidates and calibrated based on experience and impact.

Senior Node.js Developer 🚀

About Us

At MyTaxiCRM, we’re reshaping how taxi and ride-hailing fleets operate worldwide. Founded in 2021, we are a fast-growing SaaS startup headquartered in Dubai Digital Park. Our mission is simple yet bold:
To make fleet management transparent, efficient, and scalable through cutting-edge technology.

Today, we power hundreds of fleets and thousands of drivers across Europe, the Middle East, and Central Asia, boosting operational efficiency by up to 30% in the first month . We integrate seamlessly with Uber, Bolt, Careem and more, providing fleets with real-time analytics, financial automation, GPS/telematics, and BI-powered monitoring.

We’re not just building software, we’re building the operating system for global ride-hailing fleets. By 2026, our goal is to be live in 30+ countries with 50,000+ vehicles onboard.

Now, we’re looking for a Senior Node.js Developer to join our engineering team and help us scale this vision.

What You’ll Do
       •        Build and scale our core SaaS platform (Node.js + Typescript)
       •        Design and maintain GraphQL/REST APIs 
       •        Work on microservices architecture, ensuring reliability, scalability, and performance
       •        Collaborate with product and data teams to integrate GPS, telematics, and ride-hailing APIs
       •        Improve testing frameworks (unit/integration) and CI/CD pipelines
       •        Grow into a technical leadership role, with the opportunity to lead a squad

What You Need
       •        5+ years of professional experience with Node.js + Typescript
       •        Strong knowledge of relational databases (PostgreSQL)
       •        Experience with GraphQL and REST APIs
       •        Familiarity with unit/integration testing and message queues
       •        Solid understanding of microservices and async non-blocking paradigms

Nice to have:
       •        Hands-on experience with AWS ecosystem
       •        Docker + CI platforms (Gitlab)

What You’ll Get
       •        Competitive salary (with rapid growth opportunities)
       •        100% remote & flexible work environment or working from our nice Kyiv office
       •        Paid vacation and sick leave
       •        A chance to build a product from scratch and see your code impact thousands of drivers
       •        Freedom to innovate, propose solutions, and shape the future of our platform
       •        Growth path into team leadership

How We Work

We’re a startup at heart - fast, bold, and ambitious. Here’s what it means to be part of MyTaxiCRM:
       •        Ownership - Everyone on the team is a decision-maker. Your ideas matter and will be implemented.
       •        Startup Speed - We move fast, ship often, and learn by doing.
       •        Transparency - We believe in open communication and clarity in both code and company culture.
       •        Impact - What you build today will be used by thousands tomorrow.
       •        Global Mindset - We’re scaling across continents, so your code will cross borders with us.

Why Join Us?

At MyTaxiCRM, you won’t just be another developer - you’ll be part of a core team shaping the backbone of the global mobility industry. If you want to work at a place where your code directly drives thousands of cars on the streets of Dubai, London, Paris and beyond, this is it.

Apply now and let’s build the future of fleet management together!

Sharkscode is seeking a skilled Senior Back-End Developer with strong expertise in Node.js to join our Sportsbook development team. In this role, you will work on high-performance backend services, complex integrations, event-driven architecture, and real-time data flows. You will collaborate closely with product managers, developers, and QA engineers to build scalable, reliable, and efficient backend systems that support live odds, betting engines, promotions, and sports data processing.
This is a product-focused role where you will directly influence system architecture, technical decisions, and the evolution of our Sportsbook platform.

Key Responsibilities
 

• Develop, optimize, and maintain Sportsbook backend services using Node.js and NestJS.
• Design and implement REST API endpoints.
• Work with microservice architectures and distributed systems.
• Integrate external APIs (sports data feeds, payment providers, external services).
• Build and support asynchronous event pipelines using RabbitMQ and Kafka.
• Work with Redis for caching.
• Implement real-time features using WebSocket.
• Write and maintain unit tests using Jest.
• Conduct code reviews and contribute to architectural and system design decisions.
• Write maintainable, well-structured code using design patterns, OOP principles, and SOLID practices.

Requirements
 

• 5+ years of commercial backend development experience with Node.js.
• 2+ years of hands-on experience with NestJS.
• Strong proficiency in TypeScript.
• Practical experience building REST APIs.
• Solid experience with MongoDB, MySQL, or PostgreSQL.
• Strong practical knowledge of design patterns (GoF), OOP, and SOLID principles.
• Hands-on experience with WebSocket and real-time systems.
• Experience with RabbitMQ and/or Kafka.
• Experience working with microservices.
• Understanding of caching strategies and experience with Redis.

Nice to Have
 

• Experience working with high-load systems, especially those processing live sports data.
• Experience with Docker, Kubernetes, and CI/CD pipelines.
• Background in gambling/betting, especially Sportsbook (major advantage).
• Strong product mindset and experience collaborating with product teams.

What We Offer
 

• A chance to influence processes and make a visible impact on company growth.
• Competitive compensation, growing with your achievements.
• 17 paid vacation days + paid sick leave.
• Medical insurance.
• Budget for conferences, workshops, and professional training.
• Free English courses.
• Flexible working hours and a healthy work-life balance.
• A modern office in central Kyiv with free parking and a cozy work environment.
   

Impulse is a brain training app that helps people keep their brains sharp with bite-sized fun games and logic puzzles. Impulse is the world’s most downloaded app in the Brain Training category with over 100 million downloads. The app is trusted by users worldwide, with a 4.7 rating on the App Store, and has been featured as App of the Day in over 50 countries, including the UK, Canada, and Australia.

Impulse is a part of Headway Inc, a global tech company that revolutionizes lifelong learning by creating digital products for over 150 million users worldwide. Our mission is to help people grow. We’re proud to be ranked 4th among the World’s Top EdTech Сompanies by TIME magazine.

The core of our achievements is our team. That’s why, together with Oleksii, Backend Tech Lead at Impulse, we’re looking for a Node.js Developer to join our team.

This job is perfect for you if you want to:

• Use modern tools and technologies;
• Directly influence business results. Also, you will participate in team discussions and understand all aspects of the business (e.g., marketing, building and improving business processes, etc.);
• Keep improving and growing. We’re all about evolving, rethinking, and aiming higher together. You will be a part of a professional backend community and exchange experience with developers from our team and other friendly projects.

What you will do:

• Develop new features for the marketing automation platform: resource management, campaign creation, analytics data processing etc;
• Take ownership of integrations with third-party APIs and platforms (Facebook, TikTok, Google, Appsflyer, Amplitude, etc.);
• Design and implement AI-driven solutions to optimize business processes;
• Ensure the stability, scalability, and security of solutions by contributing to key technical and architectural decisions.

What do you need to join us:

• 3+ years of experience as a Backend Engineer using Node.js and NestJS;
• Strong hands-on experience with JavaScript and TypeScript;
• Solid experience with PostgreSQL and Type ORM;
• Experience with RxJS, Docker, AWS, or another cloud provider (hands-on cloud setup experience is a big plus);
• Experience and willingness to work with 3rd-party APIs (e.g., Facebook, Google, App Store, etc.);
• Readiness to take ownership and have a real impact on the product;
• Alignment with the values of our team.

What do we offer:

• Work within an ambitious team on a socially impactful education product;
• An office with a reliable shelter, generators, satellite internet, and other amenities;
• Access to our corporate knowledge base and professional communities;
• Personal development plan;
• Compensation for English language learning, external training, and courses;
• Medical insurance and full sick leave compensation;
• Company doctor and massage in the office;
• Sports activities: running, yoga, boxing, and more;
• Corporate holidays;
• Supporting initiatives that help Ukraine. 
   

Working schedule

This is a full-time position with a hybrid remote option. It means that you can decide for yourself: whether you want to work from the office, remotely, or combine these options.

Are you interested?

Send your CV!

Founded in 2012, Playson is a leading iGaming supplier recognised worldwide. We provide our customers with a high-end, microservice-based platform-as-a-service designed to process billions of financial transactions per day. We provide a cross-regional setup and are chasing latency reduction down to zero. We highly invest in delivering the best game experience and smooth connection regardless of the internet coverage and bandwidth of the game clients.

Role Overview:

One of our teams is looking for a Principal Backend Engineer to participate in developing our cutting-edge solution, where milliseconds matter. Our problem statement is not straightforward, as we aim to achieve high-end results in all important technical aspects of our business: Best availability | Lowest possible latency | The most efficient resource usage.

If you’re a product-passionate person, your mind is keen to solve deep tech engineering problems, and you have a fast "PoC first" approach with a deep sense of ownership, we would love to hear from you.

Why Join Us?

• Be a key player in a major tech transformation.
• Work on projects that impact millions globally.
• Enjoy a supportive, flexible work environment.
• Grow your skills with continuous professional development opportunities.

To succeed in the role, you will have:

• Strong development experience in Node.js/TypeScript
• Strong understanding of asynchronous programming techniques.
• Experience with distributed systems and messaging systems.
• Knowledge of relational databases (MySQL, PostgreSQL), columnar databases (Redshift, ClickHouse), and NoSQL technologies (DynamoDB, MongoDB).
• Skilled in developing and maintaining end-to-end and unit tests.
• Proven track record of developing production-ready solutions.
• Degree in Computer Science or related field.

Preferred additional qualifications:

• Experience with large-scale microservices architecture.
• Familiarity with cloud providers (AWS, GCP).
• Knowledge of Kubernetes.

• Understanding of application security and industry best practices.

   

What will you be doing?

• Developing and maintaining backend applications for our gaming platforms.
• Optimising existing systems for performance and scalability.
• Leading technical decisions and influencing our SaaS solutions.
• Collaborating with a distributed team to create new features.
• Conducting code and architectural reviews.
• Solving complex business problems with innovative solutions.

• Participating in on-call rotations within the squad to ensure the reliability and availability of our systems.

   

What you get in return:

• Competitive Salary: We offer a competitive salary in EUR, subject to annual performance reviews
• Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system
• Unlimited Paid Vacation: Enjoy unlimited paid vacation leave
• Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary
• Flexible Schedule: We offer a flexible work schedule to accommodate your needs
• Remote Work Option: Choose to work remotely, providing greater flexibility and comfort
• Medical Insurance: Receive comprehensive medical insurance for both you and a significant other
• Financial Support for Life Events: We provide financial support during special life events
• Professional Development: Get reimbursement for professional development courses and training
•  

The recruitment process includes the next steps:

1. HR Interview (30-45mins)

2. Interview with a Product Owner (45-60mins)

3. Technical interview - live coding (60-90mins)

4. Final Interview with CTO (60-90mins)

Playson 🤘 is a leading online gaming supplier founded in 2012 that has developed worldwide recognition in the industry.

Our promotional features team is seeking a Senior Backend Engineer with a strong background in Node.js. This role is focused on developing and optimizing promotional features for our gaming platforms, where performance, scalability, and cutting-edge solutions are paramount.
If you’re a product-passionate person, your mind is keen to solve deep tech engineering problems, and you have a fast “PoC first” approach with a deep sense of ownership, we would love to hear from you.

To succeed in the role, you will have:

• A degree in Computer Science or related field
• Strong development experience in Node.js/TypeScript 5+ years
• Strong understanding of Async approaches
• Experience with Messaging systems like Kafka, RabbitMQ
• Experience in distributed systems
• Experience with RDBMs (MySQL, PostgreSQL etc.), CDBMs (Redshift, ClickHouse etc.), NoSQL (DynamoDB, MongoDB, etc)
• Experience in writing e2e & unit tests
• Experience with development production-ready solutions
• Hands-on product experience with Kubernetes

Would be beneficial to know:

• Understanding of enterprise development patterns
• Experienced with large-scale microservices architecture
• Experience with cloud providers (AWS, GCP, etc.)
• Active performance observation
• Gambling domain experience
• Understanding of application security and industry standards, its best practices

What will you be doing?

• Develop and maintain robust backend systems for our promotional features.
• Optimize existing systems for enhanced performance and scalability.
• Lead technical decisions and contribute to our SaaS solutions.
• Collaborate with distributed teams to innovate and implement new features.
• Ensure code and architectural excellence through reviews.
• Address complex technical challenges with innovative solutions.

What you get in return:

• Competitive Salary: We offer a competitive salary in EUR, subject to annual performance reviews
• Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system
• Flexible Schedule: We offer a flexible work schedule to accommodate your needs
• Remote Work Option: Choose to work remotely, providing greater flexibility and comfort
• Medical Insurance: Receive comprehensive medical insurance for both you and a significant other
• Financial Support for Life Events: We provide financial support during special life events
• Unlimited Paid Vacation: Enjoy unlimited paid vacation leave
• Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary
• Professional Development: Get reimbursement for professional development courses and training

Join us today!

Cowchain blockchain development company is actively looking for Backend Developer to join our development team.

About us:
Cowchain have successfully completed 150+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

We’ll match if you have

• Independent thinking and proactive position in development
• Strong problem-solving skills with a keen ability to think analytically and approach complex challenges
• Attention to detail
• Strong tech research skills
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment
• Knows how to leverage AI tools to enhance coding efficiency and productivity

Required skills

• Experience in Backend development
• JIRA, git-flow

Will be a huge plus

• Web3 knowledge and user experience

What will you do

• New features development
• Bugfixes and support existing solutions
• Participate in project architecture discussions
• Build solutions from scratch as well as join ongoing development process
• Have fun

What we offer

• Flexible working schedule, remote work
• Competitive salary with bonuses for activities
• Ability to dive into fast-growing blockchain/crypto industry
• Work with modern tech stack (blockchain)
• Paid vacations, sick leaves
• 100% friendly/family team

We’re growing our engineering team and looking for a Senior Full-Stack Engineer who can own complex product areas, drive technical decisions, and contribute hands-on to building a high-performance payment platform.
You’ll work closely with a US-based team (Architect + Founder on the client side) and be part of a small, collaborative delivery team where communication and ownership matter as much as engineering quality.

Your impact

• Take end-to-end ownership of product features: from clarification and technical design to production delivery
• Help shape architecture and engineering practices in a platform where performance, reliability, and security are critical
• Become a key engineering partner for the US stakeholders — this role is closer to working inside a US company than a typical “outsourcing” setup

What you’ll do

• Build and ship features across the stack: Node.js/Express + React
• Design, develop, and maintain backend services and integrations using PostgreSQL and MongoDB
• Implement clean, responsive React UI components and ensure smooth FE/BE collaboration
• Own and improve REST APIs: stability, documentation, scalability, and observability
• Contribute to system design and improvements in performance, scalability, reliability, and security
• Lead complex tasks, support teammates technically, and help evolve coding standards and best practices

What we’re looking for

• 8+ years of commercial experience building web products with Node.js + React
• Strong JavaScript/TypeScript and modern web development practices
• Solid experience with REST APIs, backend services, and database integrations (PostgreSQL, MongoDB)
• Hands-on skills in performance optimization, debugging, security best practices, and scalable architecture
• Confident with Git and collaborative workflows (PRs, code reviews, branching strategies)
• Strong ownership mindset: you can move from “unclear requirements” to a shipped solution

Must-have soft skills (very important)

• Strong spoken English and comfort working daily with US stakeholders
• Ability to build relationships, communicate clearly, and proactively align expectations
• You’re not waiting for tasks — you ask questions, suggest solutions, and keep things moving

Team & collaboration

• Delivery team: 4 Developers + Project Manager
• Client side: Architect + Founder
• You’ll have direct communication and real influence on decisions and delivery

Working hours

You need to be available to work until 12:00–1:00 a.m. Kyiv time (alignment with US team)