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Senior React.js Engineer

Commit
Poland · Full-time · Mid-Senior
The company is a high-growth fintech startup in the financial markets space. We’re looking for a senior-level React engineer to own critical frontend experiences, collaborate closely with product/design, and help us scale BridgeWise to millions of users.

What you’ll do

  • Design, build, and ship high-performance, responsive web UIs
  • Partner with product managers, designers, and analysts to translate user needs into elegant product experiences
  • Plan and execute short- and long-term roadmaps balancing user impact, technical quality, and delivery speed
  • Raise the bar through code reviews, mentoring, and improvements to our tooling and processes

Requirements:

  • Next.js (our web app is built with Next.js)
  • Monorepos using Yarn Workspaces or Nx
  • Tailwind CSS (our primary design system)

Technical requirements

  • 5+ years of professional software development experience
  • 5+ years with React and its ecosystem (e.g., Redux, React Router)
  • Strong proficiency in JavaScript (ES6/ES7) and TypeScript
  • Deep knowledge of HTML/CSS, responsive design, and accessibility (a11y) best practices
  • Hands-on with modern build tooling and package managers (Vite, esbuild, Yarn)
  • Experience with server-side rendering and Next.js, plus working knowledge of Node.js
  • Solid testing discipline with Jest and React Testing Library
  • Comfortable with Git workflows and agile methodologies
  • 3+ years working with major cloud providers (AWS/GCP/Azure)

Nice to have

  • Experience with monorepo release management and internal package versioning
  • Familiarity with performance profiling, Web Vitals, and SEO in Next.js
  • E2E testing (Playwright/Cypress) and CI/CD pipelines
  • Experience in fintech or data-heavy, real-time UIs

Key Skills

Ranked by relevance

react responsive responsive design javascript server cloud yarn cicd css git seo
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Country Guide

Poland

Fast-growing Central European IT hub

Posted
Oct 01, 2025
Type
Full-time
Level
Mid-Senior
Location
Warsaw
Company
Commit

Industries

Software Development

Categories

Engineering Information Technology

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