Hi there! I'm Arockiaraj Rayappan, a passionate Development Manager with over 11+ years of experience in designing scalable, reusable, and configurable solutions especially in the FinTech domain (FX, Collateral, Custodian Integrations, and SWIFT messaging). I specialize in building systems that are easy to maintain, well-documented, and future-ready. Whether it's architecting microservices in Java/Spring Boot, creating data pipelines with AWS (Glue, Lambda, QuickSight, DataBrew), or engineering efficient Python/PySpark solutions, I love simplifying complexity and ensuring high code quality through automation and CI/CD practices. I’m also passionate about mentoring freshers and junior developers. I’ve successfully trained team members to manage complex systems independently and take pride in enabling others to grow. If you’re a student or early-career engineer looking for guidance in backend development, cloud data processing, or just want to understand how enterprise tech works.