Top Front End Developer Jobs in Brazil

The Senior Frontend Software Engineer will lead frontend feature releases, integrate AI tools, develop user interfaces, collaborate with backend teams, and improve team efficiency while ensuring code quality and performance.

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.

As a Senior Frontend Software Engineer, you will architect and develop frontend platforms, optimize for performance, and ensure alignment with product strategy by collaborating with various teams.

Build highly scalable, data-driven, personalized email templates and reusable components using React and Apache Velocity. Integrate APIs and SQL-driven data for conditional personalization, translate Figma into modular responsive email code, collaborate with Design Systems, ensure A/B testing and measurement integrity, and support i18n/localization at scale.

Build scalable, data-driven, personalized email templates and reusable React/Velocity components. Integrate APIs and SQL-driven audiences, translate Figma into modular email code, ensure responsive HTML/CSS across clients, partner with Design Systems, implement A/B testing and measurement, and use AWS, Terraform, and CI/CD pipelines to support tooling and deployment.

Build modular, personalized, data-driven email templates and reusable components using React and Apache Velocity. Integrate APIs, translate Figma into responsive email HTML/CSS, author localized templates, enable A/B testing and collaborate with Design Systems to scale internal email tooling.

Build scalable, data-driven, personalized email templates and reusable React/Velocity components. Consume APIs for conditional personalization, translate Figma designs to modular responsive email code, author locale-aware templates, partner with Design Systems, and ensure A/B testing and measurement integrity.

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.

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

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.

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

Own and enhance the Expo/React Native mobile app, focusing on native integration (JSI/TurboModules), performance-sensitive flows, push notifications, deep linking, CI/CD (EAS), testing, and crash triage. Collaborate with backend and design teams and debug issues across the JS/native boundary.

Lead frontend development for proposals, invoicing, payments, contracts, and time tracking. Design component-driven architectures with React and TypeScript, integrate with REST APIs and backend services, optimize performance and cross-browser reliability, ensure testing and accessibility, and collaborate with Product and Design to deliver polished, internationalized SaaS experiences.

Develop and maintain frontend applications using React.js and GraphQL, collaborating with backend developers and designers, optimizing for performance.

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.

Own and architect the end-to-end e-commerce frontend (product pages, cart, checkout, CMS), optimize performance and reliability at scale, partner with product/design, leverage AI-assisted workflows, refine CI/CD and Vercel infrastructure, mentor engineers, and drive platform and tooling decisions.

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.

Build and deliver complete, responsive front-end applications using Angular 2+, ensuring high performance on mobile and desktop, writing tested JavaScript/TypeScript, HTML and CSS, consuming Web APIs, and creating reusable components.

Design and develop software for edge devices, cloud servers, and web applications, focusing on APIs, user interfaces, and data processing pipelines while collaborating with teams to solve technical issues.

Lead front-end engineer on the Mapper Team building scalable data-visualization and real-time multi-user front-end features. Own end-to-end projects, contribute to architecture and processes, mentor peers, participate in hiring, and deliver high-performance, testable, maintainable UI code.

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.

As a Staff Frontend Software Engineer, you will enhance web applications through user-centric features, drive product quality, and lead technical projects.

As a Senior Frontend Engineer, you will develop and maintain scalable frontend applications, collaborate with cross-functional teams, and ensure responsive design and performance optimizations.

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