Вакансії Node.js Developer

We are seeking an experienced Lead JavaScript Developer to join our dynamic team. This role is crucial for the creation and enhancement of our gaming products.

Key Responsibilities:

• Develop and maintain game applications in JavaScript.
• Work with gaming frameworks such as PIXI.js, Phaser, etc.
• Implement cutting-edge user interfaces and UX solutions.
• Collaborate with developers, designers, and testers to optimize the development process.
• Implement and maintain server solutions using Node.js.
• Ensure high performance and optimization of code.

Required Skills and Qualifications:

• Deep knowledge of JavaScript and modern ECMAScript standards.
• Deep understanding of REST principles.
• Experience with gaming JavaScript frameworks like PIXI.js, Phaser, etc.
• Experience with Node.js development.
• Knowledge of game development principles and experience with game engines.
• Familiarity with version control systems, such as Git.
• Strong communication skills and the ability to work in a team.
• Experience in writing clean, modular, and well-documented code.
• Analytical mindset and a problem-solving approach.
• Obligatory knowledge of Ukrainian or Russian, at least on a conversational level.
• Knowledge of English is required.

We are seeking a skilled Node.js AI Developer to contribute to our innovative projects.

Our main requirements are:

• Experience in hands-on programming 3+ years;
• Experience with Node.js (Vanilla/Typescript) ;
• Experience with NestJS also and/or NextJS and/or Express;
• Strong creating with SQL/NoSQL databases efficient design from scratch as well as performing optimizations;
• Strong knowledge of Computer Science: data types, data structures, algorithms;
• Being proficient working on modern tech stack: Docker, Kubernetes, CI/CD, IaC (e.g. Terraform), Ansible, etc.;
• Having a wide strong background working with AWS (smth beyond EC2 and S3);
• Understanding and applying software design principles;
• Experience designing software systems (distributed, high availability, resilient);
• Comfortable working with Agile and Design Thinking (however understanding that pure Agile is a myth);
• Strong communication skills in English (B2 and higher).

Will be considered as a plus:

• Experience with Python;
• Experience with modern SPA frameworks like React/Vue.js/Angular;
• Experience writing technical documents, tracking technical debt, understanding refactoring, etc.;
• Experience working with AI libraries and/or 3rd parties like chatGPT, Claude, Gemini.

About the Product:

Our client develops a solution that provides real-time monitoring and actionable health insights for better care. Its technology provides 24/7 monitoring of seniors’ health at home, offering emergency alerts, valuable insights, and predictive analytics to support proactive and efficient care.

About the Role:

We are seeking a Senior Full Stack Engineer to join a mission-driven product transforming lives with cutting-edge AI and IoT technology. This role offers the opportunity to work on innovative solutions that enhance safety and quality of life for end-users while providing actionable insights to businesses. In this role, you’ll contribute to both web and mobile platforms, taking ownership of features and building scalable solutions that directly impact users and businesses.

Key Responsibilities:

• Build and maintain reliable full-stack web applications using Node.js and React.
• Develop scalable microservices solutions.
• Work closely with product managers and designers to ensure technical solutions align with product objectives.
• Conduct code reviews to maintain high-quality standards throughout the development process.
• Identify and resolve complex technical issues to optimize system performance.
• Stay updated on industry trends and integrate new technologies to enhance our tech stack.

Required Competence and Skills:

• At least 4 years of experience as full-stack developer, equally focused on Node.js and React.
• Experience with microservices architecture and RESTful APIs for scalable solutions.
• Proficiency in Git for version control.
• Basic experience with AWS or other cloud platforms.
• Experience with the end-to-end development lifecycle.
• Strong communication skills and problem-solving mindset.
• Excellent English communication skills, both verbal and written.

Nice to have skills:

• Hands-on experience with React Native for iOS/Android app development, including familiarity with Expo – a big advantage.

We are looking for Full Stack Developer. We work in several areas, IT consulting, software development, development and provision of different types of IT solutions.

Job Descriptions:

• 1,5 years of experience in WEB development frontend and backend;
• 1 year of experience with React.js, Node.js;
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.;
• Experience with Microservice architecture;
• Experience with third parties integration;
• Strong knowledge of HTML5, CSS3 and ECMAScript 6+;
• Ability to cover production code with tests – both unit and integration ones;
• Willingness to learn and to work with Scala;
• English B2;
• Git.

Would be a plus:

• Knowledge of Typescript;
• React Native;
• Experience with Heroku;
• Experience with Gitlab CI.

We’re looking for a Senior Node.js Backend Developer to join our team and help shape a global well-being platform. You’ll design scalable solutions, work with modern microservices on AWS and Serverless frameworks, and collaborate across teams to deliver impactful features. This is your chance to tackle complex challenges, modernize legacy systems, and contribute to a culture of innovation and growth.

About the project

The health app you’ll contribute to is a comprehensive well-being platform designed for companies worldwide. It’s the go-to resource for employees seeking support, guidance, and advice on challenges in their work and personal lives. Whether it’s reading an article on mental health, completing a financial assessment, or connecting with a counselor, the app has you covered.
It also offers fitness tracking, integrations, perks like gift cards, and social recognition features—all aimed at promoting employee well-being and fostering a positive workplace culture.

How we do it

Our team of 35+ backend developers is building and maintaining a large-scale, modern web infrastructure hosted on AWS, using technologies like Python, PHP, Node.js, Mongo, DynamoDB, and MySQL.
As our platform expands globally, we face exciting challenges like distributed data storage, performance optimization, and scaling. We work across the entire development lifecycle—designing solutions, writing and testing code, automating deployments, and collaborating with web, iOS, Android, QA, infrastructure, and product teams to deliver exceptional results.
We’re also migrating from a monolithic application to a microservices architecture using tools like the Serverless Framework and AWS services.
Our work environment is friendly and supportive, encouraging developers to learn, grow, and share ideas. We attend conferences, host team workshops, and explore new technologies to drive innovation and build a strong foundation for the future.

What we’re looking for

Technical skills matter, but what we value most is a positive attitude and a willingness to learn. Our backend team is looking for people who enjoy solving problems, building new things, and supporting their teammates. Strong communication, teamwork, and a knack for mentoring others are key to helping the whole team grow. If you’re excited about working with new technologies in a collaborative, supportive environment, this could be the perfect fit for you.

Requirements

• 5+ years of experience as a software developer
• 3+ years of experience with Node.js (NOTE: Primary experience Must be with Node.js, not as a secondary language)
• Experience with AWS & Lambda services
• Experience working with scalable/microservice architecture
• Proven working experience with serverless, event-driven architecture
• Experience writing tests and knowledge of TDD
• Knowledge of development principles such as OOP and SOLID
• Database design experience in non-relational databases; noSQL or key-value DBs like Redis, Mongo, and DynamoDB
• Experience with CI/CD platforms, such as CircleCI, Travis, GitHub Actions, or Azure Pipelines
• English and Ukrainian languages at Upper Intermediate level or higher

Nice to have:

• Experience with Federated GraphQL
• Experience with additional AWS services, such as API Gateway, SQS, SNS, and DynamoDB
• Experience with multiple software development languages, ideally Python or PHP
• Knowledge of Clean Architecture and DDD principles

We are looking for a talented and experienced Node.js Developer (blockchain experience) who thrives in a fast-paced environment and is ready to tackle new challenges.
The project involves the development of a system for working with cryptocurrencies that will partially replace the current structure used in the services. The system will be similar to the tools used by cryptocurrency exchanges for accepting and managing balances, but with specific features for distributing outgoing flows. The integration includes connecting to existing services, such as merchant platforms and systems for handling fiat payments.

Requirements

• 4+ years of experience with server-side JS/TS
• Solid understanding of TypeScript, JavaScript fundamentals and internals
• Experience with Express, NestJS or any other similar framework
• Flexible approach in regard to different programming languages/technologies
• Proven experience using any other stack (.NET/Go/Java/C++, etc.)
• Strong understanding of asynchronous programming, event-driven architecture, and non-blocking I/O
• Hands-on experience with Web3.js or Ethers.js for interacting with Ethereum or other EVM-compatible networks
• Understanding of smart contracts
• Familiarity with popular blockchains like Ethereum, Binance Smart Chain, or Layer 2 solutions
• Expertise in data structures, algorithms, and software design patterns
• Solid understanding of different software architectural patterns
• Experience with different RDBMSes (MySQL/PostgreSQL)
• Experience in writing complex SQL queries and their optimization
• Experience with different kinds of ORMs
• Familiarity with Docker, containerization and orchestration tools
• Strong analytical skills with the ability to think critically and solve complex issues
• Proficiency in writing unit tests, integration tests, and end-to-end tests

Would be a plus

• Familiarity with DevOps practices and infrastructure as code tools
• Understanding of consensus algorithms, cryptographic principles, and decentralized applications (dApps)

Responsibilities

• Write efficient, maintainable code
• Ability to efficiently design and implement separate self-sufficient components
• Participate in architectural discussions and technical decision-making
• Identify potential technical risks and develop mitigation strategies
• Ensure knowledge is effectively shared and maintained within the team
• Foster a collaborative and innovative development environment
• Perform cross code-review with team members
• Properly maintain documentation

Now we’re expanding and welcome talented Full-Stack (React.js + Node.js) Developer to join our team.

Responsibilities:

• Design, develop, and maintain web applications using Node.js and React.js;
• Build and optimize APIs and services, ensuring high availability and performance;
• Work with non-relational databases (e.g., MongoDB) to store and manage data efficiently;
• Collaborate with cross-functional teams to define and implement features that align with business goals;
• Participate in architectural decisions and development from concept to deployment;
• Ensure code quality through testing, code reviews, and best practices.

Qualifications:

• At least 5 years of experience with Node.js;
• At least 5 years of experience with React.js;
• At least 3 years of experience with non-relational databases (e.g., MongoDB);
• Excellent English communication skills, both written and verbal;
• Demonstrated ability to work independently and as a team player.

Big Pluses:

• Experience working on high-availability web platforms;
• Proven experience developing REST APIs;
• Familiarity with AWS cloud services;
• Proficiency in Python.

We are a dynamic and innovative tech company committed to nurturing talent and providing opportunities for professional growth. As part of our expansion, we are excited to welcome a passionate individual to join our team and kickstart their career journey as a Trainee Full Stack Developer.

Key responsibilities:

• Learn and develop skills in both frontend and backend technologies;
• Collaborate with more experienced developers on various projects to gain hands-on experience;
• Contribute to the design, development, and testing of web applications;
• Assist in troubleshooting, debugging, and optimizing code for performance;
• Engage in continuous learning to stay updated on the latest industry trends and technologies.

Requirements:

• Knowledge of NodeJS, ReactJS, NextJS, and NestJS;
• Understanding of programming languages such as JavaScript, HTML, and CSS;
• Eagerness to learn and a passion for web development;
• Strong problem-solving and analytical skills;
• Good communication and teamwork abilities;
• Enrolled in or recently graduated from a relevant computer science or IT program;
• B1+ level of English.

We invite skilled professionals to participate in a focused project over the next 3-4 months. This role includes a full-time schedule (8 hours per day) to support our project team in achieving key milestones.
We are seeking a highly skilled Senior Full Stack Developer with strong expertise in both frontend and backend development to join our team on a contract basis. You will play a key role in finalizing the build of our API using Node.js and switching the frontend endpoints in our React.js application.
The ideal candidate will have experience working independently, building robust testing suites, and must hit the ground running. You should be comfortable operating in a fast-paced environment, have a strong understanding of AWS, and be experienced in full-stack development, particularly building from 0 to 1.

Customer Overview:

USA influencer marketing platform for organizations looking to advance their creator marketing. Its enterprise-grade technology and industry-leading intelligence facilitate scaled creator discovery, streamlined workflows, and robust reporting, while ensuring compliance and brand safety.

Responsibilities:

• Rapidly onboard to an in-progress project, quickly familiarize yourself with existing architecture and codebase, and immediately contribute to feature completion and system optimization.
• Integrate the API with the frontend React.js application, ensuring smooth communication between the two layers.
• Implement comprehensive testing strategies, ensuring full test coverage for the API, including unit tests, integration tests, and functional tests.
• Collaborate closely with product managers, backend engineers, and infrastructure teams to gather requirements and finalize the API architecture.
• Conduct code reviews and ensure best practices are followed throughout the development lifecycle.
• Write and maintain clear technical documentation for API services and integration points.
• Ensure security best practices are followed, particularly around data access, authentication, and API usage.

Skills/Requirements:

• 5+ years of full stack development with a focus on React.js (frontend) and Node.js with TypeScript (backend).
• Proficiency in API design and development, particularly decoupling systems and integrating new APIs.
• Understanding of performance issues in different application levels.
• Experience with Microservices architecture.
• Familiarity with AWS infrastructure, including Serverless services.
• Extensive experience with automated testing (unit, integration, and functional tests) and ensuring full test coverage.
• Familiarity with OWASP Top 10 vulnerabilities and mitigation techniques.
• Upper-intermediate English proficiency.