Senior React Engineer (Next.js)
CommIT · Poland · 23k – 30k · posted today ago
Listing supplied by Himalayas. 101 Careers did not originate this post and applications are handled by the employer.
About this role
Description
We’re a high-growth fintech startup building products for the financial markets, and we’re looking for a senior Senior React Engineer (Next.js) to own our most critical frontend experiences. You’ll partner closely with product and design to ship intuitive, high-performance interfaces, and help us scale 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
Must-have expertise:
- 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
- Comfortable with Git workflows and agile methodologies
- 3+ years working with major cloud providers (AWS/GCP/Azure)
- Storybook
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
Originally posted on Himalayas
