Senior Frontend Developer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Frontend Developer based in Brazil.

As a Senior Frontend Developer, you will play a key role in building and enhancing modern, high-performance web applications used by a global audience. You will work primarily with React and TypeScript to develop new features, improve existing functionality, and deliver seamless user experiences. Your responsibilities will include designing technical solutions, optimizing application performance, and ensuring high standards of code quality and maintainability. You will collaborate with an international team of developers in a fully remote environment, contributing to products that help people connect and interact across cultures. This role offers the opportunity to take ownership of technical challenges, influence frontend architecture, and contribute to the continuous evolution of engaging digital platforms.

Accountabilities

• Develop and implement new website functionalities using React, TypeScript, and modern frontend development practices.
• Maintain, improve, and extend existing application features to enhance usability, reliability, and overall performance.
• Identify performance bottlenecks and implement optimizations to improve application speed, responsiveness, and scalability.
• Design and propose effective technical solutions that address product requirements and support long-term maintainability.
• Translate technical specifications into manageable development tasks, independently planning and delivering solutions.
• Apply SOLID principles and appropriate software design patterns to produce clean, modular, and maintainable code.
• Work with reactive programming concepts and RxJS to build efficient, responsive application features.
• Ensure proper implementation and understanding of HTTP(S) and WebSocket (WS/WSS) communication protocols.
• Participate in code reviews, provide constructive feedback, and maintain consistent development standards across the team.
• Apply knowledge of native UX/UI components and their expected behavior to deliver intuitive and consistent user experiences.

Requirements

• Proven professional experience in frontend development, particularly building and maintaining web applications with React.
• Strong working knowledge of TypeScript and its practical application in modern frontend development.
• Good understanding of SOLID principles and their application to software architecture and code organization.
• Theoretical or practical familiarity with Functional Reactive Programming (FRP).
• Knowledge of HTTP(S) and WebSocket (WS/WSS) protocols, including their practical use in web applications.
• Experience working with RxJS and reactive programming approaches.
• Ability to break down technical specifications into smaller tasks, prioritize work, and independently deliver solutions.
• Understanding of native UX/UI components, including their appearance, functionality, and expected user interactions.
• Experience conducting code reviews and evaluating code quality, maintainability, and technical consistency.
• Strong analytical and problem-solving abilities, with attention to detail and a proactive approach to resolving technical challenges.
• Ability to work independently while collaborating effectively with distributed development teams.

Benefits

* Fully remote, full-time employment with the flexibility to work from anywhere.  
* Competitive compensation, with the initial salary level or range communicated during the recruitment process and before employment begins.  
* 28 calendar days of annual paid vacation.  
* 7 additional wellness days per year to support personal needs, rest, and overall well-being.  
* Children's education reimbursement covering 50% of kindergarten or school expenses, up to $1,000 gross annually per child, subject to applicable conditions.  
* Employee referral bonuses of up to $5,000 for successful candidate recommendations.  
* 50% reimbursement for professional training, international conferences, and industry events.  
* Corporate discounts on English language lessons.  
* Health benefits, including reimbursement of up to $1,000 gross annually per employee for private health insurance or eligible medical expenses, subject to applicable conditions.  
* Workplace organization support, including reimbursement of up to $1,000 gross every three years for home office equipment, internet, or coworking expenses.  
* Access to an internal recognition and rewards program where colleagues can exchange earned bonuses for company merchandise, team-building activities, massage certificates, and other rewards.  
* Opportunity to work alongside an international team of technology professionals in a remote-first environment.