Prasun Kumar

Role: System Engineer at Tata Consultancy Services
Location: Bengaluru, KA, IN
LinkedIn followers: 500 followers

Information TechnologyView LinkedIn profile

About Prasun Kumar

I’m Indian

Experience

System Engineer
Tata Consultancy Services
Mar 2026 — Present
Designed and developed 10+ REST APIs using Java and Spring Boot for enterprise retail systems.• Improved API response time by 15–25% through optimized service-layer logic and efficient data handling.• Achieved 95-100% unit test coverage using JUnit 5 and Mockito, including branch and edge-case testing.• Reduced production issues by ~30% by implementing structured exception handling and robust API validations.• Debugged and resolved 20+ production issues, ensuring high system availability and minimal downtime.• Delivered 5+ production releases in Agile sprints with minimal defects.

Contact information

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Current company

Tata Consultancy Services

IT Services and IT Consulting · 726K employees · Founded 1968 · Mumbai, India

Tata Consultancy Services (TCS) is the technology partner of choice for industry leading organizations worldwide. Since its inception in 1968, TCS has upheld the highest standards of innovation, engineering excellence, and customer service. It has set an aspiration to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence. Rooted in the heritage of the Tata Group, TCS is focused on creating long term value for its clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 55 countries and 202 service delivery centers across the world, the company has been recognized as a top employer in six continents. With the ability to rapidly apply and scale new technologies, the company has built long term partnerships with its clients – helping them emerge as perpetually adaptive enterprises. Many of these relationships have endured into decades and navigated every technology cycle, from mainframes in the 1970s to artificial intelligence today. TCS sponsors 14 of the world’s most prestigious marathons and endurance events, including the TCS New York City Marathon, TCS London Marathon and TCS Sydney Marathon with a focus on promoting health, sustainability, and community empowerment. Caution against fraudulent job offers: TCS doesn’t charge any fee throughout the recruitment process. Refer here: https://www.tcs.com/careers/india/recruitment-fraud-alert

tcs.com

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About Prasun Kumar

Experience

System Engineer

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