Top Front End Developer Jobs in Sao Paulo

Build, ship, and own major parts of the product UI using React and Next.js. Design and optimize responsive, accessible interactive experiences. Collaborate with product, design, and backend teams, contribute to frontend architecture, performance, and component library, and elevate product quality through pragmatic, fast-moving execution.

The Front End Developer will create and develop UI solutions, optimize client-side performance, participate in solution architecture, and support ongoing projects.

As a Senior Frontend Engineer, you will design and build web applications, owning major UI projects, collaborating with cross-functional teams, and optimizing performance for a seamless user experience.

The Staff/Lead Fullstack Engineer will enhance the Mimica Webapp by architecting scalable UI components, managing large datasets, and optimizing performance while collaborating with cross-functional teams.

Lead the Pro team to design, develop, and deliver frontend systems for Kraken's trading interface, focusing on user experience and mentoring engineers.

The Software Engineer will design and maintain payment processing systems, mentor other engineers, and ensure security in client transactions within the crypto ecosystem.

Develop and maintain responsive web applications, implement component architectures, and ensure accessibility while collaborating in Agile teams.

Build and evolve a modular microfrontend portal using Vue 3 and TypeScript. Integrate REST APIs and BFFs, implement observability and performance monitoring, maintain the Design System, write component and end-to-end tests, and collaborate with cross-functional teams to deliver secure, maintainable, high-performance features.

The Senior Frontend Engineer will develop and maintain microfrontend applications, collaborate on backend integration, and enhance the architecture of Cobre's financial platform while ensuring performance and security standards are met.

Implement and maintain web applications using JavaScript, ReactJS, and related technologies. Participate in all development phases and troubleshoot production issues.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.

As a Senior Front End Engineer, you'll architect and develop scalable web applications, mentoring peers and embracing AI-assisted development to enhance productivity and code quality.

As a Front End Engineer, you will develop responsive web interfaces, contribute to feature development, collaborate in team settings, and integrate AI tools for enhanced productivity.

Lead the Design System mobile team to improve developer productivity and design consistency. Architect scalable, maintainable, accessible frontend solutions, mentor engineers, coordinate cross-functional work, and serve as a technical and communication focal point across the company.

As a Frontend Engineer, you'll develop high-performance applications using React Native and React.js, collaborating with cross-functional teams to meet client needs.

As an AI-First Frontend Engineer, you will develop high-performance, AI-integrated user interfaces for telehealth applications, manage team workflows, and optimize web performance.

The Senior Frontend Engineer will lead custom Shopify theme development, ensure quality coding, manage project tasks, and collaborate effectively with team members.

Design, develop, and maintain high-quality React applications, lead technical decisions, mentor engineers, and optimize performance in a fast-paced environment.

As a Senior Frontend Engineer, you will manage core user experiences on the Made platform, using Flutter and React. Your role includes feature ownership, collaboration with teams, mentoring junior engineers, and contributing to technical standards and architecture.

Build and maintain responsive, high-performance React web applications; collaborate with product, design, and backend teams; integrate with microservices; optimize performance and accessibility; write tests and participate in code reviews; mentor junior engineers.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.

As a Frontend Software Engineer, you will build user interfaces for Amplemarket's sales platform, collaborating with co-founders and cross-functional teams to enhance product usability and user experience.