Senior Front-End Engineer – React / TypeScript (508)

Senior Front-End Engineer – React / TypeScript

Remote · Full-time

About Ubiminds

Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development teams. We connect Brazil’s top 5% talent with innovative U.S. companies through a unique combination of staff augmentation and employer-of-record services.

We are supporting a U.S.-based company looking for a Senior Front-End Engineer to join a small, cross-functional team and take ownership of the UI layer of an enterprise-grade deal-management application.

Challenge

We’re looking for a React/TypeScript Engineer who is passionate about building polished, scalable, and maintainable front-end applications.

This role is ideal for someone who enjoys owning the UI architecture, designing intuitive user experiences, and working closely with product and design teams to deliver elegant solutions.

You’ll have the opportunity to shape the front-end architecture, influence technical decisions, and help build a modern, high-quality user interface in a collaborative, fast-moving environment.

 What You’ll Do

• Design and implement new features in a React v19 / TypeScript codebase.

• Manage routes and server-side rendering using React Router v7.

• Build responsive and accessible UIs with Tailwind CSS and modular CSS.

• Integrate backend services via Axios (or similar), maintaining a clean API client layer.

• Define and maintain TypeScript interfaces/models for APIs and data contracts.

• Enforce code quality using ESLint, Prettier, lint-staged, and Husky.

• Write unit and integration tests using Jest and React Testing Library.

• Collaborate with product and design teams to transform requirements into polished interfaces.

• Troubleshoot bugs, optimize performance, and participate in code reviews.

Required Skills & Qualifications

• 5+ years of professional experience building web applications with React and TypeScript.

• Strong expertise with:

  • React Hooks

  • Context API

  • Functional component patterns

• Experience configuring and customizing Tailwind CSS and PostCSS.

• Solid understanding of modern build tools like Vite and pnpm.

• Experience working with REST APIs, JSON, and asynchronous data flows.

• Strong knowledge of HTML5, CSS3, and browser compatibility issues.

• Proficiency with Git and modern branching workflows.

• Strong communication skills and the ability to work independently.

• English proficiency at C1 level (written and verbal).

 Nice-to-Have

• Experience with CI/CD pipelines (GitLab CI, GitHub Actions, CircleCI, etc.).

• Familiarity with Docker and Docker Compose.

• Knowledge of Infrastructure as Code, including Helm, Kubernetes, or Nginx.

• Experience with AI-powered productivity tools such as GitHub Copilot.

• Familiarity with performance profiling and bundle optimization.

 What’s in It for You

• Opportunity to shape front-end architecture and influence technical decisions.

• Collaborative, fast-moving environment with regular code reviews.

• Flexible hours and remote-friendly culture.

• Investment in your professional growth through training, conferences, and continuous learning opportunities.

• Full support from Ubiminds with HR, career guidance, and administrative assistance.

  About Ubiminds
   
  Our Culture
  People First. We are all about people!
  Challenge yourself. There’s always room for improvement and continuous improvement is in our essence.
  Make it happen. Be ready to take challenges as they come. It’s all about attitude and commitment.
  We’re in this together. We work as a team, thrive as a team, and evolve as a team.
  Averaging on awesome. We work hard to deliver high-quality services and look forward to exceeding expectations.
  Keep it real. We promise you honesty, transparency, and openness, regardless of the situation.
   
   
  Perks and Benefits
  - You are placed in a product-based company, with the same treatment as their full-time employees.
  - Have our full back-office support, from career guidance to HR and concierge services.
  - Enjoy our remote-first policy – we are a distributed team, after all.
  - Get your own MacBook (none of that "bring your own device" stuff here).
  - Have access to growth opportunities with other amazing technology professionals, through tech talks, chapter meetings, and even remote happy hours for tons of fun!
  - Improve your English through free lessons with a native English speaker - get to the next level on your communication skills!
  - Candidate Referral bonus (promote Ubi to your tech friends, and get paid for it!)
  - Miss working in the office? Our cool Florianópolis headquarters is available, whenever you want, with weekly quick massages & tasty snacks, soft drinks, and games