Specialist Backend Developer
Core
Building critical transactional systems for a Brazilian fintech, ensuring consistency, idempotency, and regulatory compliance for credit and payment solutions.
Role type
Senior Backend Developer (Financial Systems)
Builds
High-consistency payment platforms, core banking integrations, and regulated financial services.
Domain
Fintech / Financial Services / Payments
Deliverable
production ML models | product features
Required skills
Transactional systems design, idempotency, consistency, relational database modeling, integration contracts, root cause analysis, technical leadership, autonomous delivery
Preferred skills
Java/Spring or Node/Go, Brazilian payment methods (Pix, TED, Boleto), core banking/ledger, regulated third-party integrations, async messaging, cloud-native/AWS, CI/CD, observability, AI agent development
Technologies
Java, Spring, Node, Go, AWS, SQS/SNS, Docker, Kubernetes
Responsibilities
Lead high-stakes technical evolutions involving money and regulation, design and document architecture decisions (ADRs), define and version integration contracts, elevate team technical standards, support financial operations and incident response, resolve complex technical incidents, reduce technical debt, communicate technical risks to business stakeholders
Seniority
Senior, hands-on IC