Yasho Vikram Singh
Bangalore
Summary
Versatile Mainframe Modernization& Cloud Transformation Engineer with over 6+ years of experience in enterprise IT,specializing in legacysystem modernization, mainframeapplicationdevelopment, and hybrid cloudintegrations.Skilled in modernizingz/OSworkloads,enablingAI-assisteddevelopment,and implementing DevOps pipelinesacrosscloud-nativeandon-premiseenvironments. Proficientintoolsand platforms like OpenShift, DataGate, CP4D, and leadingcode analysis/refactoringsuites.Adeptat client engagement,technicalsolution,anddrivingseamless migrationsfrom monolithicsystemstoscalable, modernarchitectures.
Overview
7
7
years of professional experience
Work History
Mainframe Consultant
IBM
08.2024 - Current
- Modernized mainframe workloads using Watsonx Assistant for Z to enhance development efficiency for large European (Spanish) and South American banking clients.
- Managed cloud-native and hybrid integrations on IBM Cloud and Red Hat OpenShift, supporting enterprise-grade deployments across banking and US healthcare systems.
- Enabled real-time data replication from DB2 on z/OS to DB2 OLTP using IBM DataGate, supporting analytics and reporting use cases for Spanish financial institutions.
- Optimized legacy programs through refactoring and modularization using IBM ADDI, WCA4Z, and WXA4Z, improving maintainability and modernization readiness.
- Automated service deployment on Linux platforms using Docker, Podman, and shell scripting, integrating mainframe workloads with distributed services.
- Built end-to-end DevOps pipelines utilizing IDzEE, DBB, Git, and open toolchains, enabling automated build and deployment of mainframe applications for South American banking programs.
- Implemented secure secrets management using IBM Vault (HashiCorp Vault) for credentials, certificates, and sensitive configuration across hybrid cloud and mainframe-integrated pipelines.
- Authored detailed runbooks, SOPs, and implementation guides, supporting L2/L1 teams and ensuring smooth handover for global client environments.
- Defined project scope and conducted solution demonstrations and technical walkthroughs with clients, architects, and stakeholders across banking and healthcare domains.
- Collaborated with clients to identify system, security, and compliance requirements, translating business needs into technical designs and delivery plans.
- Documented user requirements, technical specifications, and operational procedures, enabling consistent implementation by distributed development teams.
- Analyzed business and IT processes to recommend tailored modernization, DevOps, and cloud integration solutions aligned with client roadmaps.
- Performed deep JCL, PROC, and batch flow analysis, optimizing execution logic, restartability, and performance for high-volume financial batch workloads.
- Managed batch job scheduling, dependency mapping, and monitoring, ensuring SLA compliance across daily, weekly, and month-end cycles.
- Handled L3-level incident analysis and resolution, diagnosing complex production issues involving COBOL, PL/I, DB2, VSAM, and batch schedulers.
- Conducted job abend analysis and recovery, implementing permanent fixes and preventive controls to reduce recurrence.
- Modified and enhanced COBOL and PL/I applications to support business changes, regulatory requirements, and integration with modern platforms.
- Supported COBOL-to-Java transformation initiatives, identifying suitable candidates, validating business logic parity, and assisting with post-transformation testing and stabilization.
- Integrated mainframe build, test, and deployment workflows into CI/CD pipelines while aligning with enterprise production governance and change controls.
- Collaborated closely with operations, security, and platform teams to align Vault-based secrets management, DevOps pipelines, and batch operations.
- Contributed to monitoring and observability frameworks for batch and database workloads, enabling proactive detection of performance degradation and operational risks.
- Provided L3 technical mentorship and guidance to L1/L2 teams across global delivery centers supporting banking and healthcare clients.
- Designed, coded, tested, debugged and documented programs using COBOL, JCL, DB2 SQL, CICS.
MAINFRAME ENGINEER
WIPRO
06.2019 - 08.2024
- Supported the migration of z/OS development to IBM IDz (IBM Developer for z/OS) as part of CI/CD pipeline enablement.
- Led the migration of legacy mainframe systems to modern platforms, ensuring minimal business disruption and continuity of critical functionalities.
- Set up entire regional environments from scratch, supporting activities from initial infrastructure setup through production go-live.
- Spearheaded the development of mission-critical applications using COBOL, ensuring optimal performance, scalability, and adherence to project requirements.
- Created modular COBOL components and reusable libraries, improving maintainability and reducing development effort across projects.
- Modeled and documented user-experience and functional requirements to support project milestones and delivery timelines.
- Managed CICS activities and batch processing workloads, ensuring seamless execution across multiple regions.
- Developed and maintained critical mainframe applications, leveraging COBOL, MVS Assembler, JCL, VSAM, DB2, and CICS for high-volume batch operations.
- Drove continuous automation initiatives on the mainframe using REXX and CLIST, improving operational efficiency.
- Utilized VSAM for efficient management of large datasets, optimizing storage utilization and data retrieval performance.
- Conducted performance analysis and tuning of COBOL programs, DB2 SQL queries, and VSAM datasets, improving system responsiveness and resource utilization.
- Supported teams with ChangeMan activities, ensuring controlled code promotion and compliance with release processes.
- Managed batch runs and production monitoring, proactively identifying and resolving processing issues.
- Automated weekly operational and batch reports using REXX, providing visibility to management.
- Updated and maintained JCL scripts, scheduling jobs as per business requirements and operational constraints.
- Provided support across APAC, EMEA, LATAM, and China regions, and played a key role in setting up a new India region.
- Delivered infrastructure support for mainframe environments, coordinating setup and operational readiness.
- Managed region-specific security keys and authorities, ensuring compliance with regional access controls.
- Performed system and hardware testing, identifying inefficiencies and vulnerabilities in infrastructure and software.
- Provided SIT, UAT, PAT, and Production development and support for new and existing regional implementations.
- Addressed production tickets within SLA, ensuring operational stability and client satisfaction.
- Managed backup and recovery operations for virtual machines and user data, ensuring data protection and recoverability.
- Led and supervised teams handling L2 and L3 mainframe infrastructure and application support activities.
- Worked with Bitbucket, TeamCity, and IBM UrbanCode Deploy (UCD) to enable one-touch deployments as part of DevOps adoption.
- Actively participated in Agile ceremonies including sprint planning, daily stand-ups, reviews, and retrospectives.
- Contributed to design and architecture discussions, providing inputs to improve scalability, reliability, and maintainability.
- Built internal monitoring and reporting dashboards using Python and Java, enhancing operational visibility.
DEVELOPER
Magnetti Marelli
04.2020 - 07.2020
- Supported activities through project kick-off and stabilization phases.
- Maintained existing applications, resolving critical issues and user requests in production environments.
- Developed browser-based automation use cases, improving operational efficiency.
- Performed regular application health checks, ensuring system stability and performance.
MAINFRAME PRODUCTION SUPPORT EXECUTIVE
State Street Corporation
- Supported securities processing systems, handling business-critical workloads.
- Monitored and managed major production incidents, delivering rapid fixes to minimize business impact.
- Participated in disaster recovery drills and exercises, validating business continuity and recovery procedures.
- Analyzed job abends, identifying root causes and implementing corrective actions.
- Responded promptly to production incidents, diagnosing issues across COBOL, PL/I, DB2, JCL, and batch processes.
- Executed monthly client-driven changes, modifying code and promoting releases through DEV, QA, and Production environments.
- Created daily and monthly operational reports using JCL-based batch jobs.
- Performed DB2 SQL updates and data corrections as per business requirements.
- Conducted tactical troubleshooting to isolate system and application faults.
- Identified system performance issues, delivering swift remedial actions to restore stability.
Education
Master in Technology (M.Tech) - Software Systems
Birla Institute of Technology And Science
Pilani, Rajasthan12.2023
Bachelors of Computer Applications (BCA) - Computer Applications
St. Xavier's College
Jaipur, Rajasthan12.2019
10+2 - Science(maths)
Delhi Public School
Noida, UP12.2016
Skills
- Forward-thinker
- Business process mapping
- JCL
- DB2 SQL
- Mainframe Data Management
- REXX
- Watson AI
- Redhat openshift
- Keen problem solver
- Gap analysis
- Mainframe DB2 Admin
- Mainframe
- COBOL
- JavaScript
- IBM Cloud
- IBM Watson Code Assistant
Accomplishments
- DevOps techie of the year, Citibank (Received twice)
- Troubleshooter award, State Street Corporation (Got for the troubleshooting response)
- Multiple client appreciation, IBM
Hobbies and Interests
- Football
- Gaming
- Travelling
- Played National level games.
Timeline
Mainframe Consultant
IBM
08.2024 - Current
DEVELOPER
Magnetti Marelli
04.2020 - 07.2020
MAINFRAME ENGINEER
WIPRO
06.2019 - 08.2024
MAINFRAME PRODUCTION SUPPORT EXECUTIVE
State Street Corporation
Master in Technology (M.Tech) - Software Systems
Birla Institute of Technology And Science
Bachelors of Computer Applications (BCA) - Computer Applications
St. Xavier's College
10+2 - Science(maths)
Delhi Public School