Jobs Node.js

Requirments:

• Understanding of modern Web and Mobile technologies

• Strong JavaScript knowledge and TypeScript

• Experience with Node.js

• Knowledge of either Nest.js, Express.js, KoaJS, or Meteor.js is an asset

• Strong object-oriented programming and design skills

• Expertise in MongoDB / NoSQL databases, FireBase/FireStorage

• Experience with creating of RESTful API services

• Ability to solve problems independently

• Outstanding teamwork and communication skills

• Intermediate reading and writing skills in English

• 2+ years of experience in web and mobile applications development

• Ability to quickly learn new technologies

will be an advantage:

• Front-end knowledges (e.g. React / Angular)

• Strong knowledge of PHP (or some of frameworks, e.g. Laravel)

• Knowledge of .NET or Python

Предлагаем

• Competitive salary

• Professional and friendly team

• Convenient office location

• Comfortable workplace

Duties:

• Build a web/mobile applications back-end using Node.js and frameworks

• Projecting database structure and logic

• Projecting big data environment and server-side architecture

• Attend daily stand-ups, planning sessions, and sprint reviews

Candidates from Sumy located prefer and welcome!

About project:

Backend development for mobile and web projects

Requirements:

5+ or more years experience in Node.js;

Experience with Node.js, JavaScript ES6 and related tools (npm, yarn, webpack, etc);

Experience with back end data / API integration using JSON and RESTful web services;

Experience working with WebSockets;

Experience in PostgreSQL/ MySQL;

Development architecture BD;

An open-minded person, a proactive team player, delivering in time.

Will be a plus:

Understanding of the working principles with Docker/Docker compose;

Responsibilities:

Work on the back-end development for the digital solutions;

Develop backend for a new web platform from scratch;

Implement new services/features as a backend developer;

Contribute to all phases of software development lifecycle;

Follow industry best practices;

Be a part of backend development team that is responsible for all aspects of ongoing software.

We offer:

Flexible schedule and possibility to work entirely remotely;

Opportunities for professional development and personal growth;

Corporate events, holiday celebrations, team building activities;

Paid annual and sick leave;

Close work with top management and ability to be a decision-maker;

The ability to attend conferences, webinars, and other events that will enhance your professional skills;

People-oriented management without bureaucracy.

We invite you to become a full-on part of the IT company that aims to get to the top of blockchain technologies. Join our pro team to implement innovative projects and contribute to further FinTech development.

What you get:

Flexible work schedule

High pay for your work and good prospects for development

depends on your skills

New opportunities and a friendly environment for self-improvement.

100% compensation of expenses related to participation in trainings and specialized conferences/seminars.

Skills we need:

3+ years of experience in software development (Node.js + TypeScript).
Experience in FinTech projects 

Knowledge of software development fundamentals, data structures, design patterns etc.

Knowledge of major Node. js modules — async, lodash, nodemon, etc.

Experience with using Node. js debugging, profiling and performance measuring tools.

Experience with express, NestJS, Typeorm, PostreSQL, CQRS, Redis etc.

Experience with build tools, code coverage and testing frameworks — Mocha, Gulp, web pack etc.

Knowledge of building RESTful web services.

Experience with Docker.

Your responsibilities:

Application development.

Highly-modular object-oriented code creation.

Creating new features within service/microservices architecture.

Build quality code adhering to industry standard coding practices.

Creating technical documentation.

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has an open position for a Full Stack Developer (React+Node) with a strong focus on the Back-end (Node.js).

Requirements:
• 1+ year of commercial experience as a Full-Stack Developer (Back-end focused — Node.js);
• Experience with React.js;
• Upper-Intermediate English level;
• Experience with other JS frameworks will be a plus.

What the company offers:

• Constant and interesting work with foreign clients;

• Salary review;

• Flexible working hours;

• 50% cost compensation of sports, English lessons.

• Annual paid 30 days vacation and paid sick day;

• Medical insurance policy;

Responsibilities:

• Altering and improving ongoing projects;

• New products development;

• Code documentation.

About Project

It is an AI-powered education travel platform that helps students, professionals, and lifelong learners discover and book personalized learning journeys around the world. The platform combines AI recommendation engines, intelligent search, and community features to match users with courses, workshops, cultural programs, and travel opportunities tailored to their interests, budget, and goals.

What We’re Building

• A web and mobile platform with a seamless, modern UX
• A dedicated mobile app for learners to browse, book, and manage their journeys on the go
• A powerful admin panel for managing courses, partners, users, and payments
• AI-driven matching of users to educational travel opportunities
• Integrated booking and payment flows
• Multi-language support from day one

• Scalable architecture to support international growth

   

Key Responsibilities

• Develop and maintain scalable e-commerce backend applications using NestJS.
• Design and implement RESTful and GraphQL APIs enabling seamless, secure data flow between services and the frontend.
• Build, integrate, and optimize Stripe payment flows (payments, subscriptions, refunds, webhooks, 3DS/SCA) and reconcile events for accuracy and auditability.
• Model and manage data with Prisma + PostgreSQL (schema design, migrations, performance tuning, indexing).
• Ensure security best practices (OWASP, rate limiting, input validation, secrets management).
• Implement monitoring, logging, and observability across services.
• Work with CI/CD pipelines to ship small, well-tested, and frequent releases (feature flags, canary/blue-green when applicable).
• Collaborate with cross-functional teams (frontend, product, design) to ensure smooth delivery of features.

• Stay current with trends in e-commerce, backend engineering, and scalable architectures and propose improvements.

   

Requirements

• 3+ years of professional experience in backend development.
• Strong expertise in NestJS (modules, providers, guards, interceptors).
• Mandatory: hands-on e-commerce experience (headless workflows, custom checkout, cart, catalog, inventory, Stripe integration).
• Proficiency in TypeScript/JavaScript and modern tooling.
• Experience with Prisma + PostgreSQL (preferred) or MySQL; ability to optimize queries and ensure database performance.
• Solid knowledge of API development (REST, GraphQL) and authentication/authorization (JWT, OAuth).
• Familiarity with cloud services (AWS, Vercel, Firebase) and CI/CD workflows.
• Strong understanding of scalability, security, and performance optimization.

• Experience working in Agile/Scrum environments and collaborating with cross-functional teams.

   

Nice to Have

• Experience with microservices architecture and serverless computing.
• Familiarity with Docker and Kubernetes.
• Knowledge of message brokers (RabbitMQ, Kafka).

• Experience with analytics and A/B testing tools.

   

What We Offer

• Competitive compensation
• Remote-friendly culture with flexible hours

About the Role: We are seeking an experienced Node.js Full Stack Developer with strong React skills and a passion for creating interactive and insightful data visualizations. You'll become part of a dynamic team focused on building scalable applications and data-driven dashboards that empower strategic decision-making.

Key Responsibilities:

Full Stack Development:

• Design, develop, and maintain backend services using Node.js and Express.
• Build responsive and interactive frontend applications using React.
• Ensure seamless integration between frontend interfaces and backend APIs.

Data Visualization:

• Develop advanced data visualizations and dashboards utilizing libraries such as D3.js, Chart.js, and Recharts.
• Convert complex datasets into clear, intuitive, and visually engaging formats.

Collaboration & Communication:

• Work closely with product owners, UX/UI designers, and fellow developers.
• Actively participate in code reviews, architecture discussions, and Agile ceremonies.

Quality & Optimization:

• Implement best practices for security, scalability, and performance optimization.
• Continuously enhance code quality, testing coverage, and maintainability.

Qualifications:

• 5+ years of professional software development experience, particularly with Node.js and React.
• Proficient in JavaScript (ES6+), TypeScript, HTML, and CSS.
• Proven track record in creating effective data visualizations.
• Familiarity with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB).
• Strong problem-solving and communication skills.
• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience).

Nice-to-Have:

• DevOps experience (CI/CD pipelines, Docker, Kubernetes, AWS/Azure/GCP).
• Familiarity with GraphQL and Apollo.
• Experience with infrastructure-as-code (Terraform, CloudFormation).
• Knowledge of serverless architecture (AWS Lambda, Azure Functions).
• Experience with testing frameworks (Jest, Mocha, Cypress).

Join our innovative team and help us shape the future through impactful technology solutions!

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!

About the Project

A leading no-code platform provider from the US has partnered with us to strengthen their development team. This platform enables businesses and individuals to build web and mobile applications without traditional coding, offering a user-friendly drag-and-drop interface.

We help the client to modernise their global solution and enhance it with the new features. Successful candidates will be working alongside the international team.

Required Skills

• minimum 2 years of experience;
• experience with Node.js based web services;
• experience with integration with front-end frameworks (preferably React);
• ability to quickly grasp new technologies;
• ability to communicate with the clients directly;
• English level — Intermediate+ for verbal communication and correspondence with our UK and US clients.

Responsibilities

Within this role the new members will be responsible for:

• analysis and technical decomposition of tasks;
• estimation and planning;
• new features implementation;
• regular code reviews;
• collaboration and knowledge sharing with the team members.

What We Offer

• remote work with a high degree of involvement in teamwork;
• a contract-based employment (B2B);
• work within an organised, independent, and motivated team that adheres to high standards for the quality of software solutions and code;
• opportunities to work on diverse tasks, deepening your experience quickly;
• collaboration in a team that is passionate about their work, and has an open knowledge sharing culture;
• modern project’s infrastructure (including CI/CD pipelines);
• technical support and assistance provided by our internal IT services department.

Expectations

This is what is expected from the successful candidate on this position:

• a minimum of 1 year of commitment; 
• full-time work;
• synced schedule with a team (European time zones);
• participation in regular meetings: daily sync-ups, planning sessions, code review.
   

Recruitment Stages:

• application registration
• technical quiz
• technical interview
• interview with PM of relevant project
• offer

We’re building Firesale — a platform where sellers create AI-powered listings by simply recording a video. Buyers see beautiful, interactive posts generated automatically. It’s fast, visual, and redefines how products are presented and discovered.

Everything is built from scratch with a modular, service-oriented architecture using NestJS and NextJS.

Watch the intro video (1 min)
📺 https://youtu.be/hU2vJU8fo0w?feature=shared

The ideal candidate profile includes:

• 6+ years of commercial software engineering experience
• 3+ years in a senior-level position
• 3+ years of hands-on backend development experience (NestJS, modular microservices)
• 3+ years of hands-on frontend development experience (React, Next.js)
• Strong grasp of DDD, Clean Architecture, KISS
• Ability to build and own complete features from UI to backend integration
• Self-directed, detail-oriented, and committed to code quality

Nice to have:

• Familiarity with NATS
• Exposure to event-driven systems
• Exposure to CI/CD pipelines (GitHub Actions, Docker)

Role & responsibilities:

• Initial focus on frontend: building key UI flows, interactions, and responsive forms
• Integrate with backend services via REST and SSE
• Help define and maintain architectural consistency and code quality
• Collaborate directly with the founder/CTO, shaping the product from day one

What we offer:

• Modern architecture: no legacy, no shortcuts, full control
• Async collaboration, flexible hours, remote-first
• Direct impact: everything you build will ship to real users
• Fast feedback loop, deep technical discussions, and strong product/tech alignment
• Opportunity to grow into a core engineering or lead role

Your tasks will include:

· Designing, developing, and maintaining scalable backend systems with NestJS (Node.js, TypeScript)

· Building a robust microservices architecture using best practices such as CQRS, event sourcing, API Gateway, and service discovery

· Integrating with internal and external services via REST, SOAP, and message-based communication (RabbitMQ)

· Applying engineering principles like SOLID, KISS, DRY, and design patterns tailored for distributed systems

· Working with SQL and NoSQL solutions, including Redis, MongoDB, and document-based data modeling in Node.js

· Designing and maintaining asynchronous flows using RabbitMQ

· Ensuring observability, fault tolerance, and scalability in service-to-service communication

· Collaborating closely with cross-functional teams using Git, Jira, and Confluence

· Thriving in an agile environment by engaging in daily meetings, sprint planning, and maintaining comprehensive technical and feature documentation

Your profile

· At least 5 years of professional experience as a backend developer in a professional software development environment

· Expertise in NestJS, Node.js, and TypeScript

· Deep understanding of microservice patterns: API composition, service orchestration, circuit breakers, retries, etc.

· Solid experience with MongoDB and document-based data modeling

· Hands-on experience with RabbitMQ or similar message brokers

· Practical experience with the integration of web services (REST, SOAP)

· Familiarity with observability tools (logging, metrics, tracing)

· Knowledge of modern development tools such as Git, Jira and Confluence

· Familiarity with agile development methods (Scrum, Kanban)

· Analytical thinking, initiative and a solution-oriented approach to work

· Good written and spoken English communication skills

Nice to have:

· Experience in e-commerce or high-load B2C platforms

· Familiarity with API Gateways, auth strategies (JWT, OAuth2), and CI/CD pipelines

· Knowledge of Docker, Kubernetes, anda and automated testing with Jest

About Us

To further strengthen the growth of the Triple A family we want to insource IT competencies at our new Technology Hub at the heart of Kyiv. There, you will become part of a young and dynamic team working on exciting, challenging, and far-reaching projects. You closely collaborate with our experienced international product teams in an agile environment. Our benefits include versatile and flexible working hours, medical insurance, sport, and cultural activities, team building events.

Backend Developer (Node.js) for the  international product IT company,  which provides a full-stack package of complex AdTech solutions for digital advertisers, publishers and ad agencies worldwide. 

  The company develops white-label platforms for enterprise clients—custom turnkey solutions to automate and optimize digital advertising.

Products company : SSP, DSP, Ad Exchange platforms.

Main markets - Tier 1-2 

The technical team - up to 30 people (CTO, Team Lead, Back-end -10, Front-end developers, QA, DevOps )

Project stack: Node.js (backend), NoSQL, SQL, Redis, MongoDB,  Linux.

Locations/Offices - Kyiv, Lviv, Odesa, Mykolaiv or remote.

 Requirements:

• At least 3 + years of backend development experience, with a strong focus on Node.js
• Deep understanding of asynchronous programming in Node.js and event loop
• Knowledge or  experience with high-load systems
• Familiarity with SQL, NoSQL, and in-memory key-value databases for data storage and optimization;
• Knowledge of network protocols such as HTTP, TCP, and FTP;
• Expertise in identifying and resolving issues efficiently;
• Experience or understanding unit testing;
• Experience with Linux servers, handling basic administration tasks;
• Performance optimization skills;

Responsibilities:

• Write clean, efficient, and maintainable code following best practices
• Develop and maintain scalable backend services using Node.js 
• Debug and resolve issues in the backend systems
• Manage and optimize SQL and NoSQL databases 
• Write and maintain unit tests to ensure code quality
• Collaborate with team lead, frontend developers, CTO, Delivery Coordinator and other team members
•  Continuously learn and apply new technologies to improve backend systems

We offer:

• Vacation 21 calendar days per year (15 working days) - cumulative, the balances are 

           carried over from year to year

• medical insurance
• days off - 7 days per year
• additional 1 day of absence per year on the occasion of celebrating Birthday
• 15 paid sick leave per year
• 15 unpaid leave per year
• days off on public holidays
• referral bonuses
• coworking compensation
• corporate technology

Who are we looking for?

We are looking for an "independent fighting unit" who is ready to join our Team and start working together on our projects immediately or after training.

Tasks?

Your tasks will focus on the skills and expectations listed below and the use of new approaches and technologies.

Why did the job open?

We want to invite a new specialist to the company's staff due to the increase in the number of projects and the opening of a branch.

Requirements:

- B1 English (Upper-Intermediate)+

- At least 2+ year of commercial experience with JavaScript

- At least 2+ years of commercial experience with Node.js

- Experience with Typescript, Nest.js

- Experience with RDBMS and NoSQL databases

- Experience with implementing automated testing platforms and unit tests

- Experience with REST/GraphQL

- Experience with cloud services such as AWS, GCP or Azure

- Experience with CI/CD processes

- Experience in integrating with external APIs

- SOLID understanding of object-oriented programming

- Flexibility and ability to adapt to changes

- Ability to work closely with Product Managers and Engineering Team-members

Good to have:

- Experience with Unit/E2E testing

- Understanding design, and architecture principles

- Experience with message brokers, like RabbitMQ, SQS, etc

- Experience with JS web-frameworks React/Vue/Angular etc

We are looking for a Full Stack Developer with a focus on Back-End.
Remote work format (We consider candidates who live geographically in Ukraine and do not plan to go abroad)

Requirements:

— 1+ year of commercial experience in the industry.

— Full-stack experience designing.

— Excellent JavaScript/TypeScript skills and strong proficiency in React.
— Experience with Next.js will be a plus.

— Familiarity with the MERN stack and experience with Nest.js will be a plus.

— Familiarity with building back-end APIs, monolith and microservice applications.

— Experience using RESTful APIs and basic authentication mechanisms.

— Ability to showcase previous work via live web pages and Github/Gitlab/Bitbucket.‍

— Upper-intermediate English proficiency, with the ability to effectively communicate technical issues and discuss project requirements.

Soft Skills:

— Excellent problem-solving skills;

— Strong communication and collaboration abilities;

— Ability to work independently and within a team;

— Detail-oriented and organized.

Cooperation format:
 

- Outstaff, transparent business model, full-time

- Projects via Upwork with foreign clients

We offer:

– Projects with foreign clients

– Growth prospects in FullStack (React, Next.js)

– Frontend mentoring and team support

– Transparent model: outstaffing, stable employment

– Comfortable atmosphere without micromanagement

— Work within a friendly team;

— Fixed salary $

— Paid vacation and sick leave;

— Required technical literature available on demand;
— Do you want a cool workshop, seminar or conference — come, talk and trip!

We are looking for a Senior Node.js Developer (Blockchain Project).

We are building a next-generation ecosystem with a blockchain as its foundation, a non-custodial wallet, and a stablecoin protocol. After a successful demo, the project is now preparing the core components (blockchain + stablecoin) for launch. In parallel, development has started on additional secured projects, including:

• A document management system,
• A country-specific solution,
• An e-invoicing platform,
• And several other ecosystem modules ready to begin.

Tech Stack

• Node.js / TypeScript, NestJS
• PostgreSQL, Redis / Valkey
• L2 blockchain (interaction with other networks)
• Docker, Kubernetes (bare-metal & cloud infrastructure)

Responsibilities

• Write efficient, maintainable code;
• Design and implement independent, self-sufficient components efficiently;
• Participate in architectural discussions and technical decision-making;
• Identify potential technical risks and develop mitigation strategies;
• Ensure effective knowledge sharing and maintenance within the team;
• Foster a collaborative and innovative development environment;
• Perform cross code reviews with team members;
• Properly maintain documentation.

Requirements

• 4+ years of experience with server-side JS/TS;
• Solid understanding of TypeScript and JavaScript fundamentals and internals;
• Experience with Express, NestJS, or similar frameworks;
• Strong understanding of asynchronous programming, event-driven architecture, and non-blocking I/O;
• Understanding of different types of scaling and microservice architectures in various implementations;
• 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 such as Ethereum, Binance Smart Chain, or Layer 2 solutions;
• Expertise in data structures, algorithms, and software design patterns;
• Solid understanding of software architectural patterns;
• Experience with relational databases (especially PostgreSQL);
• Deep experience with SQL (including schema/query design and optimization);
• Experience with ORMs;
• Familiarity with Docker, containerization, and orchestration tools;
• Strong analytical and problem-solving skills;
• Proficiency in writing unit, integration, and end-to-end tests;
• Conversational English.

Will be a plus

• Familiarity with DevOps practices and Infrastructure-as-Code (IaC) tools;
• Understanding of consensus algorithms, cryptographic principles, and decentralized applications (dApps);
• Familiarity with Matter Labs’ zk stack;
• Experience in the FinTech domain;
• Understanding of different rollup technologies;
• Openness to technology stack changes and adaptability.

N.B.! Location - remote from Latvia, Lithuania, possible relocation.

In partnership with one of the global consulting enterprises, on a large-scale digital program for a UK Telecommunication industry client, we are seeking a Senior Software Engineer (Node.js) to join the Information Syndication team. This team is responsible for building and maintaining the platforms and services that enable seamless distribution and syndication of information across multiple products and channels.

Overview

As an Advanced Application Engineer, you will be responsible for developing innovative technology solutions for emerging industries and products. You will interpret system requirements into design specifications while being expected to be a subject matter expert, collaborate and manage the team to perform effectively. You will be responsible for team decisions, engage with multiple teams, and contribute to key decisions. Additionally, you will provide solutions to problems for your immediate team and across multiple teams.

Key Responsibilities

• Advanced proficiency in Node.js is required
• Design and implement user-friendly interfaces that enhance user experience.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Participate in code reviews to maintain code quality and share knowledge with team members.
• Troubleshoot and debug applications to ensure optimal performance and reliability.

Must-Have Skills & Experience

• Strong hands-on experience with Node.js.
• Proven experience designing and building RESTful and/or GraphQL APIs.
• Solid understanding of cloud platforms (AWS preferred) and containerization (Docker, Kubernetes).
• Experience with databases (SQL and NoSQL) and caching solutions (Redis, Memcached).
• Familiarity with CI/CD pipelines and automated testing practices.
• Strong problem-solving skills and ability to work in an Agile environment.
• Excellent communication and collaboration skills.
• Advanced proficiency in AWS Lambda, TypeScript.