Brazil · Open to new challenges
Hi, I'm Cleiton. Software Engineer — Backend Java · Cloud & Microservices
Software Engineer with 7+ years of experience building scalable backend and full-stack solutions for banking, payments and public-sector systems. Strong foundation in Java, Spring Boot, microservices, APIs and distributed systems, with hands-on experience in AWS, RabbitMQ, Aurora PostgreSQL, DynamoDB, SQS, Step Functions, Lambda, C#/.NET, Angular and React. Experienced in migrating SaaS-dependent flows to microservices, improving message-processing reliability and delivering scalable business-critical services.
Latest posts
Notes on software engineering, backend and cloud.
The EU AI Act (Regulation 2024/1689)
A Breakdown of the Main Rules
Read post →The Outbox Pattern with DynamoDB
Reliable Event Publishing in Distributed Systems
Read post →Apache ZooKeeper and Its Importance for Distributed Databases
Read post →The Whole Machine: A FastAPI RAG Service, End to End
Part 5 of a 5-part series building a production-shaped RAG API on FastAPI + MongoDB Atlas
Read post →One Database, Two Search Engines: MongoDB Atlas Search for RAG
Part 4 of a 5-part series building a production-shaped RAG API on FastAPI + MongoDB Atlas
Read post →Two-Phase Retrieval: Hybrid Search with `$rankFusion` and Cross-Encoder Reranking
Part 3 of a 5-part series building a production-shaped RAG API on FastAPI + MongoDB Atlas
Read post →Contact
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