Senior Frontend Developer – React & TypeScript (Hybrid, Guadalajara)

About the role

Brillio is seeking a Senior Frontend Developer to join its Guadalajara team in a hybrid setting. You will work on modern web applications, turning UX/UI designs into responsive, accessible, and high‑performance user experiences.

Key responsibilities

• Design, develop, and maintain modern web applications using React and TypeScript.
• Implement responsive and accessible user interfaces based on UX/UI designs and business requirements.
• Build reusable, scalable, and well‑structured frontend components.
• Consume and integrate RESTful APIs and backend services.
• Optimize application performance, cross‑browser compatibility, and responsiveness.
• Write unit and integration tests to ensure code quality and reliability.
• Collaborate in Agile teams through sprint planning, daily stand‑ups, and retrospectives.
• Participate in code reviews, design discussions, and architectural decisions.
• Troubleshoot and resolve frontend production issues.
• Contribute to documentation, standards, and continuous‑improvement initiatives.

Required profile

• Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
• 5+ years of frontend development experience.
• Strong analytical thinking and problem‑solving skills.

Required skills

• TypeScript, JavaScript (ES6+), React.
• HTML5, CSS3 and modern styling approaches.
• State‑management libraries such as Redux, Context API, or Zustand.
• Frontend build tools (Webpack, Vite, Babel, npm/yarn).
• Version control with Git.
• Experience consuming RESTful APIs.
• Unit and integration testing with Jest, React Testing Library, Cypress.
• Familiarity with component libraries (Material UI, Ant Design, Chakra) and design systems.
• Understanding of web accessibility (WCAG) and performance‑optimization techniques.