Premchand M

Java Full-Stack Developer with 5+ years of hands-on experience in financial services, specializing in fraud detection, payments, and large-scale distributed systems. Currently working at Fiserv (Money Network – Fraud & Disputes team), where I design and build high-performance, secure, and scalable microservices using Java, Spring Boot, Kafka, and cloud-native architectures. My day-to-day work focuses on real-time transaction processing, fraud decisioning workflows, and integrating external fraud platforms within mission-critical payment systems. I have strong expertise in: • Backend development: Java (8–21), Spring Boot, Spring Security, REST APIs, Microservices • Event-driven systems: Kafka producers/consumers, topic design, retries, idempotency • Databases: SQL optimization, transactional consistency, high-volume data handling • Cloud & DevOps: AWS, Docker, CI/CD pipelines, monitoring & production support • Frontend exposure: Angular / React for end-to-end feature delivery I work closely with product, fraud analytics, compliance, and DevOps teams to translate complex business rules into reliable technical solutions, with a strong focus on performance, security, observability, and scalability. I enjoy solving hard problems in fintech, fraud prevention, and distributed systems, and I’m always open to discussions around Java backend roles, full-stack opportunities, and cloud-native architectures. 📌 Tech Stack: Java | Spring Boot | Kafka | Microservices | AWS | SQL | Angular | React 📍 Domain: FinTech | Payments | Fraud & Risk | Real-Time Systems