Senior/Principal Frontend Engineer

Team: IT

Location: Brazil

Commitment: Full-time

Workplace Type: remote

Accountabilities:

As a Senior/Principal Frontend Engineer, you will play a key role in designing, developing, and improving frontend solutions that support critical financial technology workflows. You will collaborate across teams to deliver high-quality products while driving technical excellence, scalability, and user experience improvements.

• Develop and maintain scalable, high-performance frontend applications using React, Next.js, TypeScript, and JavaScript.
• Collaborate with Product, Design, and Backend teams to deliver seamless, intuitive, and user-focused digital experiences.
• Integrate APIs and backend services into frontend applications while ensuring reliability and performance.
• Participate in architecture discussions, sprint planning, code reviews, and technical decision-making processes.
• Drive improvements in frontend standards, engineering practices, and overall product quality.
• Ensure applications meet responsive design, accessibility, and cross-browser compatibility requirements.
• Partner with backend engineers to deliver smooth end-to-end functionality across the platform.
• Support frontend performance optimization and scalability initiatives.
• Contribute to the development of AI-powered user experiences and modern application capabilities.

Requirements:

The ideal candidate is an experienced frontend engineer with a strong product mindset, excellent technical skills, and the ability to collaborate effectively within distributed teams. You should be comfortable taking ownership of complex frontend challenges and contributing to technical direction.

• 5+ years of professional software engineering experience, with a strong focus on frontend development.
• Solid commercial experience building applications with React.
• Experience with Next.js or similar modern frontend frameworks.
• Strong proficiency in TypeScript and JavaScript.
• Experience integrating APIs into web applications.
• Understanding of backend concepts and relational databases such as PostgreSQL.
• Knowledge of responsive design, accessibility standards, and cross-browser compatibility principles.
• Experience participating in frontend architecture decisions and technical discussions.
• Strong communication, collaboration, and problem-solving skills.
• Ability to work independently and effectively within remote, international teams.
• Upper-intermediate English level or higher.

Nice-to-have qualifications:

• Experience with Vue or Angular.
• Knowledge of Node.js or NestJS.
• Experience optimizing frontend performance and improving build processes.
• Experience creating AI-powered user experiences.
• Familiarity with AI/LLM integrations, including OpenAI, Anthropic, AI SDKs, or prompt-based applications.
• Previous experience working on SaaS, FinTech, or financial technology products.

Benefits:

• Full-time remote position based in Brazil.
• Opportunity to work on innovative FinTech and AI-driven products.
• Exposure to modern frontend technologies and scalable software architecture.
• International collaboration with cross-functional engineering, product, and design teams.
• Flexible work environment focused on autonomy and ownership.
• Professional growth opportunities through continuous learning and technical challenges.
• Supportive culture that values engineering excellence, collaboration, and innovation.