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Ubiminds

Senior Front-End Engineer – React, TypeScript

Ubiminds

Senior Front-End Engineer developing React applications for U.S. companies.

Posted 4/22/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies
DockerJestKubernetesNGINXReactTypeScript

About the role

Key responsibilities & impact
  • 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.

Requirements

What you’ll need
  • 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.

Benefits

Comp & perks
  • 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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
ReactTypeScriptReact RouterTailwind CSSAxiosESLintPrettierJestReact Testing LibraryHTML5
Soft Skills
strong communication skillsability to work independently