Senior/Principal Frontend Engineer

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

We are looking for a highly skilled frontend engineer to help build scalable, high-performance web applications at the intersection of FinTech and AI. In this role, you will contribute to a modern SaaS platform designed to improve financial workflows and revenue operations for global businesses. You will work closely with Product, Design, and Backend teams to create intuitive, reliable, and impactful user experiences. The role offers the opportunity to influence frontend architecture, technical decisions, and engineering best practices. You will be part of an international, remote-first environment that values ownership, collaboration, and continuous improvement. This is an opportunity to work with modern technologies while contributing to AI-powered product innovation.

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.

How Jobgether works: 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.     #LI-CL1