Senior Frontend Developer

Há 2 dias

São Paulo, São Paulo, Brasil ECOMPLY Tempo inteiro R$80.000 - R$120.000 por ano

What You'll Do

  • Lead frontend development efforts, translating UI/UX designs into high-quality, responsive, and performant code.
  • Optimize user interfaces and experiences: performance tuning, accessibility improvements, responsive design, and layout refinements.
  • Build and maintain end-to-end (E2E) tests and unit tests to ensure reliability, usability, and consistency across browsers/devices.
  • Collaborate with backend services; integrate APIs; help shape how data is delivered to the frontend.
  • Mentor junior engineers and share best practices.

What We're Looking For

Must-haves:

  • Strong experience in frontend development, especially using React.
  • Proven track record in UI/UX optimisation – making user interfaces efficient, clean, usable, and beautiful.
  • Solid experience writing end-to-end tests (Playwright, Selenium, etc.) and unit tests.
  • Ability to write clean, maintainable code with modern frontend tooling, state management, and bundlers.
  • Fluency in HTML, CSS (or SCSS/LESS), JavaScript/TypeScript.

Nice to have:

  • Experience with Angular as a complement to React.
  • Some backend exposure , HTTP APIs).
  • Background in compliance, fintech, SaaS – or other regulated domains.

What We Offer

  • Freelance / contract role – flexibility in hours and location.
  • Opportunity to make real impact: your work will directly affect product quality & user satisfaction.
  • Collaborative team culture – remote-friendly with clear communication and ownership.
  • Competitive compensation – paid according to experience and deliverables.

How to Apply

If this sounds like you, we'd love to hear from you.

Please send us your CV or portfolio (including UI/UX work, live products, or code samples).

Please also include your expected remuneration and your earliest possible start date.

We're looking forward to meeting the frontend expert who will help take 's user experience to the next level

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