• Desenvolver, testar e manter serviços backend de alta disponibilidade e tolerância a falhas no ecossistema de pagamentos • Participar ativamente de decisões arquiteturais, propondo soluções que equilibrem qualidade técnica e pragmatismo de entrega • Colaborar com tech leads na construção de um planejamento robusto de entrega de funcionalidades, pensando em longo prazo e boas práticas • Garantir qualidade através de testes automatizados, code reviews criteriosos e práticas de CI/CD • Garantir que as entregas feitas sejam monitoradas de maneira automática e transparente tendo controle assim do que foi entregue. • Construir e evoluir APIs RESTful internas e externas com foco em segurança e experiência do desenvolvedor • Contribuir para a cultura de engenharia: documentação técnica, ADRs, pair programming e mentoria de devs menos experientes • Participar de rotações de on-call e resposta a incidentes quando necessário

• Technical and architectural leadership • Define and evolve the architecture of the backend services within the payments ecosystem, ensuring scalability, resilience and maintainability • Lead high-impact technical decisions — trade-offs, technology choices, migration and refactoring strategies • Create and maintain ADRs (Architecture Decision Records) and technical documentation that serve as the team's single source of truth • Ensure adherence to coding standards, best practices and engineering processes (code review, CI/CD, testing, observability) • People management and team development • Technically lead 4 to 8 engineers, acting as a reference and mentor • Conduct 1:1s, provide constructive feedback and create individual development plans • Actively participate in hiring processes: defining profiles, technical interviews and candidate evaluation • Promote a psychologically safe environment where the team feels comfortable proposing, questioning and learning from mistakes • Cross-functional collaboration and communication • Interface between the technical team and product, business and operations stakeholders • Translate technical complexity into accessible language for non-technical audiences • Participate in sprint planning, refinement and agile ceremonies, ensuring estimates reflect technical reality • Collaborate with other Tech Leads and engineering leadership to align standards, share lessons learned and resolve dependencies between squads • Strategic hands-on • Remain hands-on with code — not most of the time, but on critical areas: proofs of concept, architectural reviews and debugging complex incidents • Lead and facilitate Event Storming, domain modeling and system design sessions with the team • Ensure technical debt is made visible, prioritized and addressed in a sustainable manner

• Design, develop, test and maintain highly available, fault-tolerant backend services within the payments ecosystem • Actively participate in architectural decisions, proposing solutions that balance technical quality and delivery pragmatism • Collaborate with Product Managers, Design and business teams to translate requirements into robust technical solutions • Ensure quality through automated tests, thorough code reviews and CI/CD best practices • Monitor and optimize production system performance, identify bottlenecks and propose continuous improvements • Build and evolve internal and external RESTful APIs with a focus on security and developer experience • Contribute to engineering culture: technical documentation, ADRs, pair programming and mentoring of less experienced developers • Participate in on-call rotations and incident response when necessary

• Fullstack Development: Design, develop, and implement highly scalable and reliable web applications and services using PHP, focusing on robust back-end logic, API development, and seamless front-end integration. • System Architecture: Contribute to the architectural design of our distributed systems, ensuring scalability, performance, security, and maintainability across the entire platform. • Database Management: Design, optimize, and manage complex relational databases (MySQL or PostgreSQL) using ORM frameworks like Doctrine, ensuring data integrity and efficient retrieval for mission-critical applications. • Front-end Development: Build responsive, intuitive, and performant user interfaces using JavaScript, HTML, CSS, and Twig ensuring an exceptional user experience for clinical and administrative workflows. • Deployment & Operations: Work with modern deployment tools and practices, including Kubernetes, to ensure continuous integration, delivery, and robust operational stability of our services. • Cross-Functional Collaboration: Partner closely with product managers, data scientists, AI engineers, and other engineering teams to translate complex requirements into technical solutions and deliver features that drive the intelligent operating system. • Technical Leadership: Provide technical guidance, mentorship, and conduct code reviews for junior engineers, championing best practices in coding, testing, and system design. • Testing & Quality: Implement comprehensive unit, integration, and functional testing strategies to ensure the highest quality and reliability of all developed components. • Hiring & Onboarding: Participate in interviewing and onboarding new team members, helping to grow a world-class engineering organization.