Top Front End Developer Jobs in Rio de Janeiro

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.

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.

Lead design and implementation of scalable React front-end architecture, build and optimize UI components, integrate with GraphQL/REST APIs, collaborate cross-functionally, maintain code quality through reviews and testing, and deliver user-centric features for a 3D smartphone-camera product.

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.

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

Lead frontend development for a high-traffic comments product, driving technical and product strategy, architecture, implementation, experimentation, and launches. Collaborate with product, design, and engineers, review code and design docs, mentor junior engineers, improve developer workflows, and ensure scalable, maintainable systems.

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.

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

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.

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.

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

As a Senior Frontend Engineer, you will build and design a scalable frontend architecture for a greenfield product, lead technical decisions, mentor junior engineers, and contribute to the overall system design. This role involves collaborating with teams while using modern frontend tools and AI-assisted engineering.

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

Design and build a scalable frontend platform and developer experience for CX tooling: secure data aggregation layers, modular architecture, monorepo workflows, CI/CD pipelines, RBAC enforcement, and mentorship.

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.

Lead Front-End Engineer responsible for architecting and implementing high-fidelity, accessible React/Next.js applications with TypeScript, headless CMS integration (Sanity), design systems (Storybook), state management, performance optimization, and mentoring distributed engineering teams in Agile environments.

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.

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.

Lead the frontend development team, design solutions for complex scenarios, mentor engineers, and ensure reliable, scalable user-centric solutions for Wellhub's platform.

Build and iterate frontend AI components for field-facing experiences using React and TypeScript. Lead UX of AI interactions, instrument components with telemetry, ensure UI consistency with Elastic design systems, and occasionally contribute to Salesforce Lightning Web Components. Collaborate with principal engineers, designers, and field stakeholders to measure and improve AI interaction quality.

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.

The role involves architecting and building a scalable frontend platform, implementing secure data aggregation, and mentoring engineers while collaborating with stakeholders to enhance operational efficiency.

As a Senior Front-End Software Engineer, you'll design and implement services, contributing to the architecture and product strategy in a fast-paced environment.

You will drive the product's frontend look and feel, build UIs for complex data, ensure consistent designs, and enhance development velocity. This role requires strong React/TypeScript skills, a builder's mindset, and a focus on performance and design sensibility.