Web Frontend Engineer - JS, CSS, React, Flutter

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Web Frontend Engineer - JS, CSS, React, Flutter based in Brazil.

Join a globally distributed engineering environment focused on building reliable, data-rich, and accessible digital <experiences.You> will develop high-quality web and UI solutions using modern technologies including JavaScript, TypeScript, React, CSS, and Flutter.Your work will directly shape the interfaces users rely on across enterprise products and <services.You> will contribute to open-source frontend frameworks and shared tooling designed to deliver consistent, performant experiences.The role combines hands-on software development with architectural thinking, technical collaboration, and user-focused <design.You> will have opportunities to influence engineering practices, contribute to the wider open-source community, and operate software at scale.This is an ideal opportunity for a technically strong engineer who values innovation, performance, accessibility, and continuous learning.

Accountabilities

• Design, implement, test, and document reliable software using modern web technologies and/or Flutter.
• Build intuitive, performant, and accessible user interfaces that provide a high-quality experience across diverse layouts and use cases.
• Develop and maintain frontend solutions using JavaScript, TypeScript, React, CSS, and Flutter.
• Debug, investigate, and resolve issues encountered by users while maintaining software reliability and quality.
• Participate in code reviews, architectural discussions, and broader engineering processes to maintain high technical standards.
• Collaborate with engineers and the open-source community on technical specifications, frontend frameworks, and shared engineering initiatives.
• Contribute to technical documentation and help establish clear, useful resources for developers and users.
• Identify opportunities to improve engineering, development, deployment, and operational practices.
• Deploy and operate services developed by the team, contributing to their reliability and performance at scale.
• Provide technical advocacy and contribute ideas that support the continued success and evolution of products.
• Contribute to REST API design, development, and governance where relevant to frontend applications.
• Support the development of open-source tooling and frameworks that enable consistent, performant, and accessible interfaces.

Requirements

• Exceptional academic performance, with a strong track record in secondary and higher education.
• Undergraduate degree in Computer Science, STEM, or a compelling alternative background demonstrating equivalent technical capability.
• Professional experience designing and developing high-quality web technologies.
• Strong experience with and enthusiasm for JavaScript, TypeScript, React, and/or Flutter.
• Strong understanding of frontend engineering principles, with particular attention to accessibility, performance, usability, and responsive design.
• Experience developing production-quality software with an emphasis on maintainability, testing, and reliability.
• Experience working with Linux environments, with Debian or Ubuntu experience being particularly valuable.
• Strong problem-solving skills, curiosity, flexibility, accountability, and a self-starting approach to work.
• Ability to organize work effectively, meet commitments, and deliver high-quality results on schedule.
• Excellent written and spoken English, with strong communication and presentation abilities.
• Professional and collaborative approach when working with colleagues, technical partners, and open-source communities.
• Passion for technology, innovation, open source, and continuously improving engineering practices.
• Willingness and ability to travel internationally approximately twice per year for team events lasting up to two weeks.
• Experience with containers such as LXD, Docker, or Kubernetes is a plus.
• Knowledge of REST API design, performance engineering, security, and user-centric UI development is advantageous.

Benefits

• Globally distributed work environment with opportunities to collaborate with colleagues across multiple countries.
• Twice-yearly in-person team sprints and company events.
• Personal learning and development budget of USD 2,000 per year.
• Annual compensation reviews, with compensation shaped by location, experience, and performance.
• Performance-driven annual bonus or commission in addition to base compensation.
• Recognition rewards for outstanding contributions.
• Annual holiday leave.
• Maternity and paternity leave.
• Employee Assistance Programme.
• Opportunities to travel to new locations and meet colleagues from around the world.
• Priority Pass and travel upgrades for long-haul company events.
• Opportunity to contribute to open-source projects and shared frontend frameworks.
• Exposure to modern web technologies, Flutter, Linux, cloud-scale software, and globally distributed engineering practices.