This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr SW Engineer, Credit Cycle based in Brazil. This is an opportunity to join a high-impact engineering team building core services that support billing, debt management, and financial transactions across the credit lifecycle.You will design and develop secure, scalable, and highly reliable services in a mission-critical fintech environment.The role combines hands-on software engineering with cloud-native architecture, automation, observability, and production support.You will work extensively with Java, AWS, microservices, Kubernetes, Terraform, and event-driven technologies.Collaboration with product managers and cross-functional engineering teams will be central to translating business needs into effective technical solutions.You will also contribute to architectural decisions, technical standards, and continuous improvements across the platform.This fully remote position offers the opportunity to make a meaningful impact on systems operating at significant scale.