Lumburu Sai Hyndavi
Mainframe Developer
Hyderabad
Summary
Mainframe Developer with 5+ years of experience in analysis, design, development, and modernization of legacy systems using COBOL, JCL, VSAM, and DB2. Experienced in platform migration, automation, and enhancing business-critical applications. Strong collaborator with cross-functional teams in Agile environments, delivering quality solutions that improve efficiency, reduce costs, and ensure application stability.
Overview
6
6
years of professional experience
5
5
Certifications
3
3
Languages
Work History
Associate
Cognizant Technology Solutions
Hyderabad
03.2022 - Current
- Design Lead for John Hancock Life Commission System (LCS) and Agency applications.
- Enhanced COBOL/JCL-based systems for commission calculations and reporting.
- Lead design and peer review processes ensuring coding standards and quality compliance.
- Automated manual tasks and implemented permanent fixes for recurring batch failures.
- Reviewed BRDs, coordinated with business and QA, managed change requests and release cycles.
- Used JIRA for tracking, issue management and stakeholder collaboration.
- Tech: COBOL, JCL, VSAM, DB2, Endevor, VS, Postman, ESP Scheduler, Github Copilot, TeamCity.
Programmer Analyst
Cognizant Technology Solutions
Chennai
12.2020 - 03.2022
- Worked on McDonald’s Data Archival project to offload Mainframe data into AWS S3.
- Developed JCLs and COBOL modules for file extraction, transformation, and validation.
- Supported QA during testing cycles and resolved production issues.
- Tech: COBOL, JCL, VSAM, File-Aid.
Programmer Analyst Trainee
Cognizant Technology Solutions
Chennai
12.2019 - 12.2020
- Contributed to enhancement of Claim Handling Platform (CHP) for Travelers Insurance.
- Performed analysis, code enhancement, unit/system testing, and defect fixes.
- Collaborated with onshore teams for UAT and production rollouts.
- Tech: COBOL, JCL, IMSDB, AQT, Reflection Workspace.
Education
B.Tech - Computer Science Engineering
Aditya Institute of Technology and Management
01.2019
XII - undefined
Narayana Junior College
01.2015
X - undefined
Kendriya Vidyalaya (CBSE)
01.2013
Skills
Programming: COBOL, JCL, SQL
Databases: DB2, VSAM, IMSDB
Tools: TSO/ISPF, File-Aid, Endevor, ChangeMan, CA Workload Scheduler, ESP
Operating Systems: z/OS, MVS, Windows
Other: Applens, TeamCity, GitHub Copilot, Visual Studio, Postman, DB2 Visualizer, AWS Cloud basics
Strong problem-solving and debugging skills
Excellent communication and client coordination abilities
Expertise in mainframe modernization and automation
Proven leadership in mentoring and reviewing code for high-quality delivery
Certification
AWS Certified Developer Associate (2023)
Timeline
Associate
Cognizant Technology Solutions
03.2022 - Current
Programmer Analyst
Cognizant Technology Solutions
12.2020 - 03.2022
Programmer Analyst Trainee
Cognizant Technology Solutions
12.2019 - 12.2020
XII - undefined
Narayana Junior College
X - undefined
Kendriya Vidyalaya (CBSE)
B.Tech - Computer Science Engineering
Aditya Institute of Technology and Management