**About the challenge:** We are looking for a Senior Backend Engineer to work on the development and evolution of the MVP of a new Caveo product. The professional will be responsible for building robust APIs, banking integrations, and financial process automation, directly contributing to an efficient digital journey for our customers. **Responsibilities:** * Develop, evolve, and maintain secure, scalable, and high-performance RESTful APIs. * Implement banking integrations (primarily with BaaS platforms such as QItech) and financial automation routines. * Work on process automation, reconciliation, payment splitting, and compliance. * Ensure code quality, security, and engineering best practices. * Collaborate with Tech Lead, DevOps, frontend, and UX teams for agile, high-impact deliveries. * Participate in code reviews, architecture definition, and continuous product improvement. **Technologies and platforms used:** * Node.js (backend) * RESTful APIs * AWS (cloud infrastructure) * Kubernetes and Docker (containerization and orchestration) * Microservices * Terraform (infrastructure as code) * Integration with BaaS platforms (QItech) * Financial process automation **Requirements:** * Solid backend development experience, preferably in fintechs, payments, or financial automation. * Proficiency in RESTful APIs, microservices, banking integrations, and cloud. * Experience with payment automation, reconciliation, splitting, and compliance. * Experience working in agile and multidisciplinary environments. * Preferred: experience with QItech, tax automation, or healthcare. **Behavioral profile:** * Proactivity and ownership * Focus on delivery and quality * Strong communication and collaboration skills * Resilience and adaptability **Benefits:** * Flexible meal allowance; * Flexible mobility allowance; * Health insurance; * Wellhub and Totalpass; * Discounts with partners; * Starbem (health platform); * iFood Club; * Birthday day off; **Additional information:** * Contract type: PJ * Hybrid model: 4 days onsite, 1 day remote * Workplace: Vila Olímpia, São Paulo/SP