I design and build scalable backend architectures for financial services and high-transaction platforms. With 7+ years in regulated fintech environments (Bancolombia, Banistmo), I deliver production-ready systems using microservices, serverless AWS (Lambda, DynamoDB, API Gateway, SQS/SNS), and event-driven patterns with Kafka.
My approach combines Clean Architecture, hexagonal design, and CQRS for high-concurrency scenarios. I implement CI/CD pipelines with Azure DevOps, infrastructure as code with CloudFormation/Terraform, and ensure security by design (SAST, DAST, secure coding).
What you get:
→ Complete backend architecture design
→ API design and implementation (REST, Node.js, Java/Spring Boot)
→ Database modeling (DynamoDB, MongoDB, PostgreSQL)
→ Deployment pipeline and monitoring setup
→ Documentation and knowledge transfer
Technologies: Node.js, Java, Python, AWS Lambda, DynamoDB, Kafka, Docker, SprintNoot, Azure DevOps.