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Rafael Fernandes
Software Enginner
Verified
Senior Software Engineer with 14+ years building real-time, event-driven systems for finance, retail, and gaming. I design cloud architectures on AWS and deliver resilient Java/Spring microservices that turn business goals into measurable outcomes. Core strengths: Java/Spring (Boot/Framework), Kafka/RabbitMQ, REST/WebSockets, AWS (Lambda, SQS/SNS, RDS, S3), CI/CD, and production observability (SLIs/SLOs, alerts, runbooks). Oracle Certified Java Programmer. Selected impact: built an in-house email MTA handling up to 5M msgs/day, cutting third-party costs; helped deliver a <100 ms fraud-decisioning platform for payments/transfers; contributed to an audit-ready data export pipeline for gaming compliance; and deployed a Kafka/NiFi backbone that synchronized manufacturing and inventory flows across plants. I value clear APIs, reliable rollouts, and mentoring teams to ship safely at scale.More...