• Take the lead in defining iOS architecture roadmap, working closely with cross-functional teams to ensure best practices in mobile development. • Help drive efforts to modernize and optimize iOS application, focusing on scalability, performance, and maintainability. • Work to maintain alignment across the iOS development team, fostering a culture of collaboration and technical excellence. • Build POCs, research new frameworks and technologies, evaluate third-party SDKs, and provide data-driven recommendations to enhance mobile experience. • Tackle complex challenges in app performance, concurrency, and memory management, ensuring a seamless user experience. • Mentor less-experienced developers and conduct thorough code reviews, providing clear, constructive feedback. • Implement new features, refactor existing code, and lead the adoption of Swift and SwiftUI best practices. • Work with CoreData, Combine, StoreKit, and other Apple frameworks, integrating with RESTful APIs and third-party services. • Write unit and UI tests to maintain app reliability and stability, ensuring high-quality software releases. • Collaborate with product managers, designers, and backend engineers to deliver seamless, user-centric experiences. • Optimize and enhance CI/CD pipelines to streamline deployment and improve development workflows. • Lead efforts in accessibility (A11y) to ensure compliance with WCAG and Apple’s accessibility guidelines. • Implement and optimize app security best practices, ensuring compliance with industry standards like GDPR and SOC 2. • Contribute to App Store submission and review processes, ensuring compliance with Apple’s guidelines and policies. • Analyze app analytics and performance metrics, using tools like Firebase, Instabug, and Xcode Instruments to drive data-driven improvements. • Design and implement a modular architecture, breaking the app into independent, reusable modules to improve scalability, maintainability, and parallel development efficiency.

• Design, build, and maintain scalable full-stack applications. • Lead architecture, technical design, and engineering best practices. • Develop modern frontend applications using React.js. • Build scalable backend services using Node.js and Python. • Drive adoption of AI-assisted development to improve engineering productivity. • Mentor and guide engineers through code reviews, technical discussions, and career development. • Collaborate closely with Product, Design, and Business teams to deliver customer-focused solutions. • Manage technical priorities, stakeholder expectations, and project delivery. • Continuously improve application performance, reliability, and scalability.

• Contributors will design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing • Write clear natural-language specifications and reference implementations • Develop and extend unit and integration test suites • Review peer-generated tasks for correctness, clarity, and realism • Identify edge cases, ambiguities, and potential failure modes • Ensure alignment between specifications, code, and expected outputs

• Work technically alongside the team and also hands-on in implementations, ensuring code standards, architecture and best practices in a TypeScript monorepo. • Structure and optimize modular architecture, ensuring independent deliveries by phase. • Define and maintain PostgreSQL architecture, including performance strategies, indexing and partitioning. • Design adapters for integration with legacy systems (ERP TOTVS Consinco), ensuring resilience via cache/fallback. • Implement and supervise integrations with TOTVS ERP (catalog, inventory, orders, customers), Cielo/Braspag, iFood, Fórmula Certa/Fagron and Roch/Bnex. • Implement multi-layer security: network, authentication, application, data and mobile. • Ensure LGPD compliance from the outset: consent management, encryption, auditing and data subject rights. • Configure and maintain AWS infrastructure (dev, staging and production), CI/CD, blue-green deployments and scalability. • Implement monitoring, centralized logs, alerts and dashboards. • Design search mechanisms using OpenSearch/Elasticsearch. • Conduct code reviews, mentor developers and support technical estimations. • Participate in technical and executive committees, reporting risks and project progress. • Document architecture, APIs and operational processes.