Mathan Kumar

Results-driven Java Backend Developer with 3 years of experience designing, developing, and deploying secure, scalable enterprise applications in the BFSI (Banking & Financial Services) domain. Proficient in Java, Spring Boot, PL/SQL, RESTful APIs, JWT authentication, and real-time transaction processing. Experienced in PADSS-compliant migrations, FRM integrations, Core Banking Solution (CBS) integrations, and security hardening.

Delivered impactful solutions for leading Indian banks including City Union Bank (CUB) and Karur Vysya Bank (KVB).

Junior Software Engineer - Yalamanchili Solutions for Payments - IITMRP, Chennai

(2023-07)

• Developed Java-based backend services for prepaid and debit card systems, ensuring high performance, scalability, and security.
• Built and maintained RESTful APIs with JWT authentication for real-time transaction processing and third-party integrations.
• Led PADSS-compliant backend migration using Java, PL/SQL, and Oracle, reducing vulnerabilities by 30% and improving stability by 15%.
• Optimized Spring Boot APIs with query tuning and caching, improving response time by 20%.
• Resolved critical production issues and collaborated with cross-functional Agile teams to ensure timely feature delivery and system reliability.

Master of Computer Applications - Computer Applications - University of Madras, Chennai (2019-06 - 2022-04)

Bachelor of Science - Computer Science - Periyar University, Namakkal