Senior Frontend Engineer - Contractor

You will be responsible for building and maintaining scalable, high-performance frontend applications while ensuring excellent user experience and technical quality across all web products. You will collaborate closely with cross-functional teams to translate requirements into intuitive interfaces and contribute to the continuous improvement of frontend architecture and practices.

• Develop, maintain, and optimize responsive web applications using React
• Translate product and design requirements into clean, functional, and intuitive UI components
• Ensure high performance, scalability, and cross-browser compatibility across applications
• Debug, troubleshoot, and resolve frontend issues to maintain a seamless user experience
• Integrate frontend applications with backend microservices and RESTful APIs
• Participate in code reviews and contribute to frontend engineering best practices
• Mentor junior engineers and support their technical growth through guidance and feedback
• Continuously improve frontend architecture, tooling, and development workflows

Requirements:

You bring strong experience in frontend engineering, particularly within modern JavaScript ecosystems, and are comfortable building complex, scalable web applications. You have a strong eye for detail, performance, and user experience, and you thrive in collaborative Agile teams.

• 5+ years of experience in frontend engineering with strong expertise in React
• Strong proficiency in JavaScript/TypeScript, HTML5, and CSS3
• Experience building responsive, cross-browser compatible web applications
• Solid experience integrating frontend applications with RESTful APIs
• Familiarity with testing frameworks such as Jest and React Testing Library
• Experience with frontend build tools (Webpack, Babel) and version control (Git)
• Understanding of accessibility standards (WCAG) and UI best practices
• Experience with frontend performance optimization techniques
• Experience working in Agile/Scrum environments
• Strong communication skills and ability to collaborate across distributed teams
• Ability to mentor and support junior engineers in a team setting

Benefits:

• Remote contractor opportunity based in Brazil
• Work on modern, scalable web applications with real product impact
• Collaborative, international engineering environment
• Exposure to product, design, and backend cross-functional teams
• Opportunity to mentor and grow within a senior technical role
• Work with modern frontend technologies and best practices
• Flexible collaboration structure suited for contractors
• Continuous learning and improvement culture

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

 Why Apply Through Jobgether? 

 

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

 

 

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