Senior frontend developer (reactjs)

Job Title: Senior UI Developer – React JS / Next. Js / Type Script
Location: Sao Paulo, Brazil (Hybrid)
Experience Level: 10+ Years (Mid-Senior Level)
Employment Type: Contract
Job Description:
We are seeking a highly skilled and experienced Senior UI Developer with a strong background in React JS, Next. Js, Type Script, and Unit Testing. The ideal candidate will have a proven track record of building scalable, responsive, and high-performance web applications. This role requires a collaborative mindset, attention to detail, and the ability to lead UI development initiatives from concept through execution.
Key Responsibilities:
Develop and maintain modern, scalable front-end applications using React JS and Next. Js.
Write clean, efficient, and well-documented code using Type Script.
Implement unit testing frameworks (e. G., Jest, React Testing Library) to ensure robust code quality.
Optimize application performance, scalability, and user experien...