Sumit Karanwal

Background

About Sumit Karanwal

Java Backend Developer with 4 years of experience building scalable, secure, and high-performance backend systems in the banking and fintech domain. Proficient in Java, RESTful APIs, and real-time data handling, with a strong focus on performance optimization and clean architecture. At Image Infosystems, I led the development of Cheque Truncation and ACH platforms for over 10+ banks, supporting daily transactions. I’ve integrated Oracle and MySQL databases with optimized queries, improving transaction speed by ~30% and boosting system uptime. Tech stack includes Java, REST API, Undertow, ZK Framework, Oracle, MySQL, PostgreSQL, JUnit, and Git. I thrive in collaborative environments and take pride in delivering high-quality code that solves real-world banking problems. Open to challenging backend roles where I can grow and contribute to impactful systems. Let’s connect!