Mainframe Developer with 10+ Years in Data Science/AI
Resume:
PROFILE SUMMARY
Mainframe Engineering professional with over 10 years of experience in designing,
developing, enhancing, and supporting mission-critical applications across P&C insurance and BFSI domains.
Strong expertise in COBOL, JCL, DB2, IMS DB, VSAM, and CICS for both batch and online transaction processing, with hands-on experience in end-to-end application integration and data management.
Proven capability across the full SDLC including requirements analysis, technical design, coding, unit testing, debugging, release deployment, documentation, production support, and root cause analysis of batch and online failures. Collaborative team contributor with experience mentoring developers, conducting code reviews, and driving quality standards; complemented by secondary exposure to Python, Machine Learning, Generative AI, and Agentic AI for building knowledge hubs, virtual agents, and support copilots.
WORK EXPERIENCE
Coforge, Greater Noida Senior Software Engineer Aug’21 – Present Lead Developer – Claims Application UTICA Client, P&C Insurance Domain Leading the development and support of the UTICA claims application on IBM Mainframe technologies (COBOL, JCL, CICS, IMS).
Designing and implementing new components and enhancements to meet evolving P&C insurance business requirements.
Driving end-to-end integration with upstream systems (policy management, vendor payments) and downstream platforms (PageCenter, data warehouse). Generating complex reports and extracting data using IMS DB and DB2 for business and analytics consumers.
Proactively analyzing claims-related incidents and prioritizing resolution of batch abends and online CICS screen errors.
Preparing and maintaining monthly release artefacts — design specifications, unit test results, checklists, and deployment plans.
Conducting thorough unit testing, code reviews, and defect analysis to ensure application stability and release quality.
Mentoring and guiding junior developers on coding standards, troubleshooting, and best practices.
Collaborating with cross-functional teams (QA, BA, Ops) to coordinate releases, deployments, and production support activities.
Exploring and piloting emerging automation/AI solutions and process improvements to reduce batch failures and eliminate repetitive tasks. Tata Consultancy Services, Gurgaon Senior Software Engineer Aug’20 – Jul’21 Designed, implemented and deployed IBM Mainframe applications using COBOL, JCL, DB2 and VSAM to meet functional requirements.
Performed comprehensive unit testing for developed programs and documented test results and fixes.
Conducted code reviews to enforce coding standards & best practices across the team. Created and maintained JCL job streams for batch processing and generated SQL reports from DB2 tables for business stakeholders. Optum, Gurgaon Software Engineer Oct’18 – Jul’20 Designed, developed and supported health-insurance mainframe applications using COBOL, JCL, DB2 and VSAM.
Tested and debugged complex online CICS transactions and batch jobs to ensure production stability.
Troubleshot and resolved critical production incidents by performing root-cause analysis and implementing fixes.
Resolved customer issues by providing timely workarounds and delivering defect fixes to restore functionality.
CONTACT DETAILS
**************@*****.***
Noida
https://linkedin.com/in/sunny-
ghangas41/
CORE COMPETENCIES
Mainframe Application Development
COBOL Programming
DB2 / IMS DB / VSAM Data Handling
CICS Online Transaction Processing
Batch Job Scheduling & Monitoring
Production Support & Root Cause Analysis
Claims Application Engineering
Release & Deployment Management
Cross-Functional Collaboration
Python & Machine Learning
Generative AI & Agentic AI Solutions
TECHNICAL SKILLS
Mainframe Technologies: COBOL, JCL, CICS,
IMS DB, DB2, VSAM
Mainframe Tools: File-AID, Abend-AID,
Xpeditor, Endevor, CA7
Programming & Scripting: Python
AI & ML: Machine Learning, Generative AI,
Agentic AI, MLOps
Cloud & Deployment: AWS (Basic)
Domains: P&C Insurance, BFSI
EDUCATION
B.Tech./B.E.
(Electronics & Telecommunication
Engineering)
Kurukshetra University, 2015
Sunny Ghangas
Senior Software Engineer with expertise
in Mainframe-Based Application
Development across P&C Insurance and
BFSI domains. Targeting roles as
Mainframe Developer / COBOL Developer
to design, enhance, and support large-
scale claims and core processing systems.
PROJECTS
Insurance Virtual Agent: Built a
conversational AI assistant for policy inquiry
and support.
Knowledge Management System:
Developed an AI-based document retrieval
hub for faster knowledge access.
ITSM Copilot: Implemented a Generative &
Agentic AI support assistant to recommend
ticket resolutions.
LANGAUGES
English & Hindi
Infosys, Mysore Senior System Engineer Nov’15 – Sep’18 Worked within the PWM team to enhance and support existing mainframe codebase and to develop new modules per client requirements (SunTrust Bank). Managed production outbreaks and job abends, diagnosing issues and restoring application execution within tight SLAs.
Applied strong expertise in COBOL, JCL, DB2, CICS, VSAM, UNIX, CA7 and ENDEVOR to maintain and release production artefacts.
Investigated and resolved escalated incidents reported by users, delivering prompt solutions and minimizing business impact.
CERTIFICATIONS
Complete Data Science, Machine Learning, Deep Learning & NLP Bootcamp — Udemy MLOps Bootcamp with 10+ End-to-End ML Projects — Udemy Generative AI Development using LangChain & Hugging Face — Udemy Introduction to LangGraph — LangChain (Official)
AWS Cloud 101 — AWS Certified
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