• Build scalable and maintainable features using React.js • Develop backend services using Node.js, ideally with Nest.js • Integrate and consume GraphQL APIs • Collaborate with engineers and stakeholders across different teams • Participate in agile rituals and sprint planning • Ensure performance, reliability, and security best practices across the stack

Role Description At Flutter Brazil, Staff Software Engineers, Frontend go beyond delivering features — they shape technical direction, elevate engineering standards, and build scalable frontend platforms that support long-term product growth. In this role, you will play a key part in evolving our frontend architecture across web and mobile, working within a modern ecosystem that includes: - React - React Native - Expo - Next.js - Shared monorepo environment We’re looking for someone who combines deep frontend expertise with strong architectural thinking, the ability to influence multiple teams, and a drive to solve systemic problems — not just isolated tasks. If you’re motivated by technical leadership, platform thinking, and multiplying your impact across teams, we’d love to meet you. What you’ll do: - Lead the technical evolution of frontend applications across web and mobile platforms - Define and influence architecture decisions for projects built with React, React Native, Expo, and Next.js - Drive improvements in the monorepo, including shared libraries, tooling, and developer experience - Guide the evolution of our Design System, ensuring consistency, scalability, and adoption across teams - Collaborate with backend engineers, product managers, designers, and engineering leadership to deliver scalable solutions - Identify and address systemic issues related to performance, scalability, maintainability, and reliability - Lead technical initiatives that improve code quality, testing strategies, and observability in production - Act as a technical reference for engineers through mentoring, code reviews, and knowledge sharing - Facilitate technical discussions and align decisions across multiple squads and stakeholders - Contribute to building a strong engineering culture focused on ownership, excellence, and continuous improvement Qualifications - 8+ years of experience in frontend development - Strong expertise in JavaScript and TypeScript - Deep experience with React in production environments - Proven experience designing and scaling frontend architectures - Ability to lead technical initiatives with impact beyond a single team - Strong understanding of component architecture, state management, performance optimization, and frontend observability - Experience building SPAs and responsive/adaptive interfaces with a strong focus on UX and accessibility - Solid experience with automated testing (unit and integration) - Strong collaboration skills and ability to influence technical decisions across teams - Experience with Git workflows, code reviews, and collaborative development practices - Ability to operate with autonomy and a system-level view of engineering and product Requirements - Experience with React Native and Expo (nice to have) - Strong familiarity with Next.js (SSR, routing, caching, performance optimization) (nice to have) - Experience with monorepos (nice to have) - Experience building and maintaining scalable Design Systems (nice to have) - Knowledge of GraphQL (nice to have) - Experience with modern styling solutions such as Tailwind CSS or Tamagui (nice to have) - Familiarity with Cloudflare (CDN, caching, Workers, edge strategies) (nice to have) - Experience with CI/CD pipelines and DevOps practices (nice to have) - Familiarity with Node.js and Docker for development environments (nice to have) - Experience with monitoring, observability, and production analytics (nice to have) Benefits - Competitive compensation - Paid time off - Remote-first environment - Growth and learning opportunities through the Flutter Edge global network

Role Description A TownSq está em busca de uma pessoa Senior Front-end Engineer que combine profundidade técnica, autonomia e forte capacidade de colaboração. Você fará parte de uma squad, atuando ao lado de profissionais experientes para construir aplicações web robustas, escaláveis e usadas diariamente por comunidades em todo o continente. Esta é uma oportunidade para quem domina Angular + TypeScript, tem mentalidade proativa e deseja influenciar decisões técnicas, impulsionar o time e contribuir com iniciativas estratégicas que estão começando agora. - Arquitetar, desenvolver e evoluir aplicações web utilizando Angular, TypeScript, RxJS, Nx Workspaces, NgRx, Jest e Cypress - Participar do ciclo completo de desenvolvimento: análise, estimativas, codificação, testes e entrega - Colaborar em um ambiente ágil e multidisciplinar, contribuindo com discussões técnicas - Trabalhar de perto com Design e Produto na construção de novas funcionalidades - Garantir a qualidade e a saúde do código, promovendo boas práticas e padrões de arquitetura - Pesquisar, testar e propor experimentos e provas de conceito para evolução da plataforma - Apoiar engenheiros mais novos, ajudando na curva de aprendizado e influenciando decisões técnicas - Comunicar riscos, dependências e impactos com clareza, garantindo previsibilidade nas entregas - Participar de reuniões com stakeholders internacionais, utilizando inglês em nível intermediário numa comunicação prática e objetiva Qualifications - Experiência sólida com Angular + TypeScript - Domínio de engenharia de software, design patterns e arquitetura modular - Conhecimentos avançados de JavaScript - Forte domínio de CSS3 (Flexbox e Grid) - Vivência com testes (Jasmine/Jest) - Experiência com RxJS, otimização de performance, lazy loading, change detection e boas práticas de renderização - Inglês intermediário, não buscamos perfeição, e sim alguém que consiga se comunicar com segurança - Boa comunicação, postura colaborativa e abertura para perguntar, ouvir e propor soluções Requirements - Experiência com Nx Workspaces e NgRx - Experiência com otimização de performance e redução de bundle size - Vivência em CI/CD e boas práticas de engenharia - Experiência em ambientes que lidam com stakeholders internacionais Benefits - Vale Alimentação/Refeição no cartão Ifood Benefícios: R$770,00/mês - Auxílio internet: R$50,00/mês - Plano de Saúde e Odonto UNIMED com abrangência nacional e possibilidade de inclusão de dependentes - StarBem: assistência médica online (psicólogos, nutricionistas, fisioterapeutas) - Auxílio creche - Creditas: crédito consignado com juros baixos - GymPass para cuidar da sua saúde - Day Off no dia do aniversário - Fluency Academy: desconto e possibilidade de subsídio integral no curso Poliglota (8 idiomas) - Kit de equipamentos para você desenvolver suas funções!

• Lead frontend architecture for complex Web3 applications (dashboards, protocol UIs, admin panels) • Build interfaces for the next generation of financial applications - lending, trading, staking, RWAs, bridging, stablecoins • Own frontend delivery end-to-end: architecture, implementation, performance, and quality • Mentor and support other frontend engineers, review code, and set best practices • Work closely with founders, smart contract and backend engineers to turn deep tech into usable products • Align directly with customers on scope, timelines, and delivery expectations • Act as a reliable technical partner who helps teams move faster and avoid pitfalls