Top Front End Developer Jobs in Sao Paulo

Develop and maintain modern frontend web applications using React, TypeScript, Vite, and Material UI. Collaborate with product managers, designers, and engineers to deliver features, write tests, debug issues, automate deployments, document systems, provide technical support, and improve development processes. Build reusable components and ensure application quality, performance, and reliability.

Develop and evolve scalable, high-performance web applications using modern Angular. Lead technical decisions, define front-end architecture and reusable components, guide development teams, review code, support testing, gather requirements, and collaborate with business and technology stakeholders. The role also involves solving complex technical challenges, improving application quality and performance, and evaluating technologies that support maintainability and scalability.

Build and maintain high-performance slot and casino game front ends using PixiJS and Svelte. Implement game mechanics, bonus features, UI flows, backend and RGS integrations, and responsive browser experiences. Optimize rendering, asset loading, memory usage, and mobile performance while collaborating with artists, animators, designers, math engineers, and QA to deliver polished, compliant, certification-ready games.

Build and own Caliza’s real-time financial dashboard using TypeScript and React. Develop transaction tables, balances, reports, search, filtering, exports, permissions, and data-heavy interfaces. Integrate back-end APIs, contribute to Kotlin and Spring Boot services, optimize performance, implement accessibility and security practices, write automated tests, and collaborate with product, design, compliance, and engineering teams.

Build premium, animated web experiences for a global consumer brand. Responsibilities include translating Figma designs into pixel-perfect responsive interfaces, developing reusable Tailwind CSS components, implementing high-performance animations, optimizing rendering, ensuring accessibility, testing across browsers and devices, and independently leading front-end projects using modern development and AI coding tools.

Develop and maintain Keet Desktop, a cross-platform peer-to-peer communications application built with React and the Pear runtime. Responsibilities include implementing UI/UX, optimizing performance, writing maintainable and tested code, debugging complex frontend applications, and contributing to decentralized communication technologies. The role involves collaboration with a globally distributed remote team and may include desktop application, real-time communications, and cross-platform development.

Develop and maintain Keet Desktop, a cross-platform peer-to-peer communications application built with React and the Pear runtime. Responsibilities include implementing UI/UX, optimizing performance, writing maintainable and tested code, debugging complex frontend applications, and contributing to decentralized communication technology. The role involves collaboration within a remote global team and may include desktop application, real-time communication, and open-source development.

Develop and maintain Keet Desktop, a cross-platform peer-to-peer communications application built with React and the Pear runtime. Responsibilities include implementing UI/UX, optimizing performance, writing maintainable and tested code, debugging complex frontend applications, and contributing to decentralized communication technologies in a globally distributed remote team.

Build and maintain high-quality web and mobile interfaces using TypeScript and Next.js. Translate Figma designs into responsive, pixel-perfect code. Follow Clean Architecture, use design systems and Storybook, engage AI coding assistants to accelerate delivery, own features end-to-end, and collaborate with product, design, and engineering teams.

Build and optimize front-end components across insurance websites, configure and analyze A/B and multivariate tests in Optimizely, improve SEO, CRO, page performance, and user experience, and collaborate with UX, development, media, and paid teams. Translate behavioral and testing data into actionable recommendations for technical and business stakeholders.

Build polished, responsive front-end applications for Chiri Brain and client-specific AI solutions. Design user flows, prototypes, interfaces, reusable components, and design systems while integrating APIs, authentication, business data, agent workflows, and security controls. Work directly with customers and stakeholders to understand needs, rapidly prototype, gather feedback, and ship production-quality software. Help establish scalable front-end architecture and use AI-assisted development tools to accelerate delivery.

Build premium, design-driven web experiences for a major consumer brand. Responsibilities include translating Figma designs into pixel-perfect React or Next.js interfaces, developing advanced animations and interactions with GSAP and related technologies, creating scalable Tailwind CSS components, optimizing performance, implementing accessibility, independently leading front-end work, conducting code reviews, and using AI development tools.

Build, test, deploy, document, and maintain full-stack web applications across frontend, backend, databases, servers, networking, and cloud systems. Translate business requirements into scalable solutions, troubleshoot existing applications, participate in code reviews, and improve engineering standards. The role requires end-to-end ownership, collaboration with distributed teams, user support, responsible use of AI-assisted tools, and mentoring of other developers.

Develop and enhance frontend software products, with a focus on React-based applications and loan origination systems. Responsibilities include designing, coding, testing, debugging, troubleshooting complex code, collaborating with Agile stakeholders, reviewing requirements, mentoring junior developers, and managing end-to-end development through production rollout. The role also involves optimizing customer experiences and working with REST APIs, databases, AWS services, and automated testing tools.

Develop and enhance frontend software products, serving as a subject matter expert for loan origination systems. Collaborate with stakeholders and Agile team members to evaluate requirements, specifications, use cases, and test plans. Deliver software through the full development lifecycle, from design and prototyping through production rollout. Troubleshoot complex problems, optimize customer experiences, and mentor junior developers. The role requires strong React expertise, RESTful API knowledge, database experience, AWS services, Kinesis, and software testing skills.

Build a new headless front-end using React and Next.js, creating reusable, responsive, accessible components and integrating headless CMS content with REST or GraphQL APIs. Write unit, component, and integration tests; participate in code reviews, planning, and estimation; and independently deliver features from ticket through tested merge. Use enterprise AI coding tools for development, refactoring, testing, and debugging while critically reviewing generated output.

Design and implement scalable, user-facing web features for high-traffic Uber applications. Own technical design and execution, collaborate with product, design, data science, and backend teams, improve performance and reliability, establish frontend engineering standards, resolve production issues, and mentor junior and mid-level engineers.

Build performant, accessible websites and custom WordPress themes, Gutenberg blocks, plugins, and responsive frontend implementations. Translate design mockups into HTML, CSS/SASS, and JavaScript, while troubleshooting PHP, WordPress, Drupal, and backend issues. Collaborate with designers, consultants, and clients in a remote environment, using AI tools such as Claude Code to support project execution.

Build and own high-performance, customer-facing web applications using React, Redux, and TypeScript. Integrate AI-powered product features, establish frontend engineering standards, optimize scalability and performance, and maintain testing and design systems. Partner with product, design, and backend teams to deliver quickly, mentor engineers, review AI-generated code, establish responsible AI guardrails, and drive continuous delivery in a high-scale SaaS environment.

Lead frontend feature releases and own production lifecycle for React and TypeScript domains. Build scalable, tested, high-performance AI-powered interfaces, integrate with a Java Spring Boot backend, and improve user experience and team efficiency. Participate in code reviews, estimate development work, monitor frontend health, and ensure stable, reliable software for dental practices.

Build and evolve large-scale, resilient front-end commerce applications used across thousands of stores. Lead architecture, testing, performance, accessibility, and product delivery with product managers and designers. Serve as a technical reference, mentor engineers, participate in hiring, and use AI responsibly to improve development speed and quality. The role requires advanced English and Portuguese and is remote within Brazil.

Develop and maintain scalable, high-performance frontend applications for a SaaS platform serving finance and accounting teams. Build React and Next.js interfaces, integrate APIs and backend services, ensure responsive and accessible experiences, optimize performance, and participate in architecture, planning, reviews, and technical decisions. Collaborate with Product, Design, and Backend teams in a distributed environment while contributing to AI-powered product features and frontend engineering standards.

Build and evolve user interfaces for internal tools, primarily using React or similar front-end technologies. Take increasing ownership of Power BI reports, dashboards, semantic models, DAX, Power Query, and deployment processes. Improve Python-based automation, reporting consistency, usability, and operational robustness while collaborating with engineering and client-facing teams.

Build React and TypeScript user interfaces for factory-floor teams, including visual components, AI interaction interfaces, and supporting code that enables AI agents to assemble and adapt product experiences. Collaborate with Product, Design, Data Science, and Engineering to deliver features, prototypes, and research spikes. The role emphasizes AI-native product development, experimentation, cross-functional communication, and self-service customization.

The Senior Front-End Engineer will develop enterprise-grade web applications using React, collaborate with UX designers and project managers, and enhance existing applications' performance.