Sumit Kumar

Senior Mainframe Engineer
Commonwealth Bank of Australia | [Oct 2022 – Present]
Domain: Home Buying / Home Loans

• Spearheaded end-to-end development and maintenance of Home Loan applications within the bank’s Home Buying domain, ensuring seamless functionality and user experience.
• Worked closely with business users to gather, understand, and analyze business requirements, translating them into effective technical solutions that align with strategic objectives.
• Led activities across the software development lifecycle including code design, impact analysis, code modification, unit/system testing, and production deployment.
• Conducted in-depth impact analysis on existing systems to identify dependencies and risks, ensuring smooth integration and minimal disruption.
• Delivered robust and scalable mainframe solutions by collaborating with cross-functional teams and adhering to performance and security standards.
• Maintained high-quality code through rigorous testing and post-deployment validations in critical production environments.
• Consistently recognized for excellence with multiple accolades, including two STAR Awards, for delivering high-impact solutions and driving continuous improvement in project delivery.

• Company Overview: BNY Mellon is a leading US based investment bank. BNY mellon helps its clients manage and service their financial assets throughout the investment life cycle.
• Coded/Amended COBOL programs and other components as per the design document by following the standard practices defined.
• Staged the modules using Endevor and created Infoman activities to turn over all the components from test environment into production environment.
• Prepared the test data setup i.e. the test JCLs and test data for the new/enhanced programs.
• Performed end-to-end testing starting from unit testing till system integration testing.
• Project: EMEA IAS Applications
• Domain: Asset Servicing
• Role: Team Member
• Period: March 2019 – Till date

• Company Overview: Client: Highmark Health solutions is one of the major Health Care company which is US based. is a leading healthcare company, serving more than 7 million people worldwide. As a leader in the health benefits and services industry
• Involved in the Development, Maintenance and Enhancement of MEMBERSHIP and CLAIMS part.
• Involved in Analysis of COBOL Programs Batch/Online , JCL, PROCS.
• Involved in preparing analysis, approach documents and design documents.
• Involved in analyzing and resolving production issues on a daily basis and doing immediate code fix whenever necessary.
• Attending weekly status meetings.
• Project: OPTUM
• Domain: Healthcare -Claims
• Role: Team Member
• Period: January 2018 – March 2019

• Company Overview: Client: First Data Resources, Omaha, US. First Data International is a payment processing company with a portfolio of services for both issuer and merchant. It provides services in most of the phases in the credit card life cycle. The services include embossing, authentication, clearing, settlement, posting etc.
• Coded/Amended COBOL programs and other components as per the design document by following the standard practices defined.
• Staged the modules using Endevor and created Infoman activities to turn over all the components from test environment into production environment.
• Prepared the test data setup i.e. the test JCLs and test data for the new/enhanced programs.
• Performed end-to-end testing starting from unit testing till system integration testing.
• Project: MITAA
• Domain: BFS - Cards & Payments
• Role: Team Member
• Period: September 2014 – December 2017
• Project: FDFS &CC
• Domain: BFS - Cards & Payments
• Role: Team Member
• Period: May 2015 – December 2017