Abdelrahman G.

Senior Backend Engineer (Java/Spring Boot) with 9+ years building high-throughput systems for fintech and payments companies. I recently cut an end-of-day settlement pipeline from 12+ hours down to under 5 minutes through database sharding and batch redesign — the kind of problem I like solving. I specialize in Java, Spring Boot, PostgreSQL, Kafka, Docker, and AWS, with hands-on experience in microservices architecture, REST API design, and payment processing systems. I've also led small engineering teams and managed vendor relationships end-to-end, so I'm comfortable owning a project from requirements through production. If you need someone who can design a system that scales, untangle a legacy bottleneck, or ship reliable backend infrastructure for a payments or fintech product, let's talk about what you're building.