Jean R

Senior Backend Engineer with 12+ years building scalable, secure, cloud-native systems for fintech platforms operating across 40+ countries. Currently at dLocal, integrating regulatory-reporting microservices with the Central Bank of Brazil and RBI/Razorpay for cross-border payments — and automating judicial-order processing with FastAPI + Azure OpenAI (LangChain). Core stack: Java/Spring Boot · Go · Python/FastAPI · AWS (ECS, Lambda, SQS, Athena, KMS) · OpenTelemetry · Kafka · PostgreSQL What I bring: → Distributed systems designed for compliance at scale (40+ countries) → Observability migrations: New Relic → OpenTelemetry/Jaeger/Prometheus → API security: OAuth2/JWT, SCA/SAST remediation, Adyen payments integration → Cross-domain experience: fintech, healthcare, government Open to senior/staff remote roles with international teams. GMT-5, available now.