Front End React Engineer (Mid-level)

99x Brazil (formerly Nextly)

São Paulo, State of São Paulo, Brazil Remote permanent

Posted: March 31, 2026

Job Description

99x Brazil is on the lookout for a talented Front End React Engineer to join our innovative team. With a focus on developing cutting-edge web applications, you'll be part of a dynamic group with a strong reputation for delivering high-quality tech solutions. You’ll work with international teams in Brazil and Norway, delivering secure, scalable, and high-quality web solutions. As a Front End React Engineer, you'll leverage your expertise in React to create exceptional user interfaces that enhance user experience and drive engagement.

Responsibilities

• Develop and maintain scalable front-end applications using React and TypeScript.
• Integrate front-end applications with REST/GraphQL APIs.
• Contribute to performance, SEO, and accessibility best practices.
• Collaborate with backend developers and participate in technical discussions.
• Ensure code quality through testing and code reviews.

Requirements:
• 3+ years of experience with React in production environments.
• Solid knowledge of JavaScript (ES6+) and TypeScript.
• Experience integrating with APIs (REST or GraphQL).
• Familiarity with CMS-driven or headless CMS projects.
• Intermediate/Advanced English for international collaboration.

Benefits:
• Your pick when it comes to employment models: CLT/PJ/Cooperativa;
• We provide the necessary resources for you to grow and learn on the job, including online courses, mentoring, the latest-gen laptops, and great ultra-wide, IPS panel monitors;
• A fully remote work environment with flexible working hours;
• Bonus for any referrals that we end up hiring;

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