Dinesh Venkatesan
Mainframe Production Support | Development | COBOL | JCL | DB2 | VSAM | IMS | CICS | RCA | Incident Management | Batch | System Optimization | Chennai | Ex-TCS
- Role
- Mainframe Production Support & Testing at Tata Consultancy Services
- Location
- Chennai, TN, IN
- LinkedIn followers
- 500 followers
About Dinesh Venkatesan
I’m a results-driven Mainframe Support and Testing Specialist with hands-on experience in maintaining and enhancing critical business systems across multiple domains.Over the years, I’ve developed strong expertise in COBOL, JCL, VSAM, DB2, and IMS, ensuring high system availability and seamless batch operations. My proactive approach in root cause analysis, job monitoring, and issue resolution has helped reduce downtime and improve service quality.I collaborate closely with cross-functional teams to ensure incident-free releases and smooth production transitions. I also enjoy mentoring junior team members and streamlining processes to improve efficiency.Key Highlights:• End-to-end Mainframe Support (Batch & Online systems)• Test planning, execution, and defect management• Performance optimization and automation initiatives• Proven track record of achieving SLA compliance and operational excellenceI’m now seeking opportunities to apply my technical and analytical skills in Mainframe Testing / Production Support roles with forward-thinking IT organizations. Let’s connect to discuss how I can contribute to your team’s success.
Experience
Mainframe Production Support & Testing
Jan 2019 — Present · Chennai, IN
Senior Process Associate – Mainframe Support & TestingTata Consultancy Services | Chennai | Jan 2019 – PresentManage mainframe production support across COBOL, JCL, DB2, VSAM & IMS systems.Monitor and troubleshoot batch job failures, ensuring 99.9% uptime and SLA compliance.Perform root cause analysis (RCA) and implement long-term preventive solutions.Execute system, integration, and regression testing for large-scale mainframe applications.Review and optimize legacy COBOL code to improve system performance.Collaborate with cross-functional teams to ensure smooth incident resolution and release cycles.Create and maintain detailed process documentation and knowledge base for faster issue resolution.
Education
Patrician College Of Arts And Science
Bachelor of Computer Applications, Computer Science
Find verified contacts for anyone on LinkedIn
Unifers gives sales teams verified emails and direct dials, enriched profiles, and outreach that lands in the inbox.
Free plan included · No credit card required
This profile is compiled from publicly available professional sources. Unifers is not affiliated with or endorsed by LinkedIn. Request removal of this profile.