Senior Backend Engineer - Care Payment (3 Days/week Hybrid)
Core
Design, build, and maintain ultra-high-volume, low-latency transaction engines and distributed ledger systems for global card payments.
Role type
Senior IC backend engineer (payments infrastructure)
Builds
Scalable, resilient card processing infrastructure supporting millions of daily transactions
Domain
FinTech / Global Payments
Deliverable
production ML models | product features
Required skills
Java 17+, Spring Boot, Microservices, AWS (EKS, DynamoDB, SQS, SNS), Kafka, Terraform, Kubernetes, CQRS, Event Sourcing
Preferred skills
Card issuing/acquiring experience, BACEN regulations, SRE practices, Event-sourcing patterns
Technologies
Java, Spring Boot, AWS, EKS, DynamoDB, Kafka, Terraform, Datadog, OpenTelemetry, Github Actions, ArgoCD
Responsibilities
Scale core banking transaction engines, align regional business needs with global roadmaps, mentor São Paulo engineering hub, architect fault-tolerant ledger systems
Seniority
Senior, hands-on IC with technical leadership