Senior Fullstack Engineer - React, Node

JavaScript

Senior Fullstack Engineer - React, Node

JavaScript
-, Warszawa

Link Group

Full-time
Permanent
Senior
Hybrid
9 640 - 11 844 USD
Gross per month - Permanent

Job description

Senior Fullstack Engineer – React & Node.js


We’re looking for a skilled Senior Fullstack Engineer to help us build and evolve advanced web applications powered by GenAI technologies. In this role, you’ll contribute across the full technology stack — from creating responsive, dynamic UIs to designing efficient back-end services. You’ll collaborate closely with cross-functional teams to deliver scalable, user-focused solutions for high-impact use cases in a fast-paced, data-driven environment.


🔧 What You’ll Be Working On:

  • Designing and implementing intuitive front-end experiences using React and modern JavaScript/TypeScript
  • Building and maintaining robust Node.js back-end services with clean architecture and strong API design
  • Developing GenAI-driven features that enhance user workflows and automate insights delivery
  • Ensuring the performance, scalability, and accessibility of web applications across devices and environments
  • Collaborating with design, product, and engineering teams to define and iterate on requirements
  • Conducting peer code reviews and mentoring other engineers to uphold code quality and development standards
  • Implementing comprehensive unit and integration testing strategies to ensure system stability
  • Maintaining documentation and contributing to team-wide best practices and technical decisions


✅ What You Bring:

  • 5+ years of experience in front-end or fullstack development, preferably in fast-paced environments
  • Strong command of TypeScript, JavaScript, and modern frameworks like React (Angular is a plus)
  • Proficiency in Node.js, including building and securing scalable APIs
  • Experience integrating with RESTful APIs and using version control systems like Git (GitHub or similar)
  • Solid grasp of Test-Driven Development (TDD) and hands-on experience with test automation tools
  • Familiarity with build tools such as webpack, gulp, or similar, and knowledge of performance optimization techniques
  • Exposure to design systems and tools like Figma, along with experience using third-party components (e.g., ag-Grid, Highcharts)
  • Understanding of asynchronous programming (Promises, Observables) and building reusable, maintainable code
  • Practical experience coordinating with infrastructure/backend teams on deployment and scalability
  • Excellent communication skills, with the ability to lead discussions and explain complex topics clearly
  • A thoughtful, ethical mindset and commitment to delivering high-quality, maintainable solutions


This is a great opportunity to join a forward-thinking tech team working on impactful products with real-world usage. If you’re excited about building modern applications and shaping the next generation of intelligent interfaces, we’d love to hear from you.

Tech stack

    TypeScript

    regular

    JavaScript

    regular

    React

    regular

    Node.js

    regular

    RESTful API

    regular

    TDD

    regular

    Figma

    regular

    Git

    regular

    Angular

    nice to have

Office location

Published: 27.05.2025