10 mainframe modernization experts
Sabre's phased move of core travel platform capabilities from TPF mainframe architecture to Google Cloud is one of the programs behind these mainframe modernization experts, whose titles also include Mainframe to Cloud Migration Lead at JPMorganChase and Director, Mainframe Program Management at Fidelity Investments. Program leads, architects and hands-on developers are all here, which suits teams choosing how to rehost, refactor or rewrite COBOL, CICS and DB2 applications.
Professionals to explore
Anil Kumar Veduruparthi
LinkedInExperience: Former Java Mainframe Developer - AWS Cloud · Centers for Medicare & Medicaid Services
Rearchitecting legacy IBM Mainframe applications in COBOL, CICS and DB2 into cloud-native solutions using Java, Spring Boot and AWS is the work Anil Kumar Veduruparthi describes. Anil was Java Mainframe Developer - AWS Cloud at Centers for Medicare & Medicaid Services (2022-2025), has been a Mainframe Developer at Washington State Department of Social and Health Services since December 2025, and was a Mainframe Consultant at Humana (2019-2020) and LSEG Data & Analytics (2020-2022). Hands-on COBOL-to-Java rewrites on AWS fit Anil.
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Ankur Gupta
LinkedInExperience: Mainframe Specialist · If Insurance
Ankur Gupta has been Mainframe Specialist at If Insurance since 2022 and describes directing IBM Mainframe initiatives, delivering application modernization and data migration strategies, and migrating z/OS applications to low cost platforms like Wintel and zLinux. Ankur held Technical Lead (2018-2022) and Assistant Consultant (2014-2022) at Tata Consultancy Services and was SENIOR SOFTWARE ENGINEER at CSC (2011-2014). Data migration off z/OS fits Ankur.
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Joseph Westman
LinkedInExperience: Director, Mainframe Innovation & Transformation Strategy · RBC
A z Systems IBM Champion 2024-26, Joseph Westman has been Director, Mainframe Innovation & Transformation Strategy at RBC since April 2026, after Director, Mainframe Performance, Capacity and Innovation at CIBC (2022-2026). At CIBC, Joseph was also Mainframe DevOps Consultant and Product Owner (2020-2022), Mainframe Performance Consultant (2020-2022) and Mainframe Application Consultant (2015-2020). Mainframe DevOps, performance and capacity questions, and modernization strategy, fit Joseph.
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Larry DeVasto
LinkedInExperience: Principal Enterprise Architect - Mainframe · Northwestern Mutual
At Northwestern Mutual, Larry DeVasto has been Principal Enterprise Architect - Mainframe since 2022, providing mainframe modernization thought leadership on application architecture and aligning modernization efforts with enterprise application strategy. Larry was Mainframe Modernization Advisory Consultant at Amazon Web Services (AWS) (2020-2022), Director Enterprise Architecture and Innovation at Utica National Insurance Group (2018-2020) and Software Deployment Architect at IBM (2015-2018). Architecture choices, seen from both AWS and an in-house seat, fit Larry.
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Mahima Trivedi
LinkedInExperience: Executive Vice President · AXA Global Business Services (AXA GBS)
Refactoring strategy and choosing modernization partners fit Mahima Trivedi, Executive Vice President at AXA Global Business Services (AXA GBS) since 2025, leading mainframe application refactoring and modernization strategy, capabilities development and partner ecosystem for AXA entities. Mahima held Kyndryl titles as Director, Global Consult, Core Enterprise & zCloud (2023-2025), Global Consulting Leader, Core Enterprise & zCloud, Kyndryl Consult (2022-2023) and Global Domain Leader - Core Enterprise & zCloud, A&IS (2021-2022).
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Parth Patel
LinkedInExperience: Vice President - Mainframe to Cloud Migration Lead · JPMorganChase
Parth Patel has been Vice President - Mainframe to Cloud Migration Lead at JPMorganChase since 2021, and earlier held Assistant Vice President (2017-2019 and 2020-2021) and Design Authority - Assistant Vice President (2019-2020) there. Parth describes experience across legacy mainframe and modern cloud and microservices platforms. Planning a mainframe to cloud migration inside one enterprise, and the design authority's role in it, fit Parth.
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Patricia Tow Blackadar, PMP
LinkedInExperience: Director, Mainframe Program Management · Fidelity Investments
Patricia Tow Blackadar, PMP has been Director, Mainframe Program Management at Fidelity Investments since 2023, serving as Center of Excellence Lead for Cloud Modernization Enablement. That Center of Excellence role fits questions on how a central team supports application groups moving mainframe workloads to the cloud, and on running mainframe modernization as one program rather than many separate projects.
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Shannon Partridge
LinkedInExperience: Former Senior Principal Program Manager Program Director Mainframe Offload · Sabre
Phasing a mainframe offload program fits Shannon Partridge, Senior Principal Program Manager Program Director Mainframe Offload at Sabre (2022-2026), where Shannon led program delivery for one of Sabre's largest enterprise modernization initiatives, the phased migration of core travel platform capabilities from legacy TPF mainframe architecture to Google Cloud. Before that, Shannon was Principal Program Manager - Mainframe Offload (2018-2022) and Manager, Technical Services PMO (2011-2018) at Sabre.
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Siddharth Nimbalkar
LinkedInExperience: Mainframe Modernization Architect & Consultant Driving Legacy System Transformation · Equifax
Moving COBOL workloads to GCP fits Siddharth Nimbalkar, who led migration of COBOL-based mainframe workloads to GCP using cloud-native services, enabling decommissioning of legacy infrastructure. Siddharth holds the title Mainframe Modernization Architect & Consultant Driving Legacy System Transformation at Equifax (since 2025), after Mainframe Modernization Lead at Programming.com (2024-2025), and was Technical Lead at Wipro (2022-2023) and Senior Consultant at Capgemini (2018-2022).
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Siddhartha Tiwari
LinkedInExperience: Associate Director - Modernization Platform Architect · Sun Life
From Senior Specialist - Development (2017-2021) through Principal Solution Designer (2021-2023) and Senior Principal Solution Designer (2023-2024) to Modernization Platform Architect (2024-2025), Siddhartha Tiwari's Sun Life titles reach Associate Director - Modernization Platform Architect since October 2025, specializing in transforming legacy mainframe systems into GenAI-supported cloud-based and hybrid architectures. Using generative AI in mainframe modernization fits Siddhartha.
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Choose the right perspective
For running a modernization program, Shannon Partridge, Patricia Tow Blackadar, PMP and Parth Patel hold program and migration lead titles; for target architecture, Larry DeVasto, Siddhartha Tiwari and Siddharth Nimbalkar. Mahima Trivedi fits refactoring strategy and partner choice, Joseph Westman mainframe DevOps and capacity, and Ankur Gupta and Anil Kumar Veduruparthi hands-on data migration and COBOL-to-Java work.
Questions to take into the conversation
- 01How do you decide which mainframe applications to rehost, refactor or rewrite, and in what order?
- 02How do you keep batch and online processing consistent while part of a workload runs in the cloud and part still runs on the mainframe?
- 03What had to be true before you could switch off the mainframe after the last application moved?
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.