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Solution Designer · Mainframe Modernization Specialist

MathivananLoganathan

I design the path from mainframe to modern — parsers, platforms, and the products teams actually run.

Dublin, IrelandTechnology Consultant, HPE Mainframe Alternative CoE
Mathivanan Loganathan, technology consultant based in Dublin

Dublin · MFA Center of Excellence

Years in delivery
18+
Lines of code analysed
200M+
In-house products shipped
5
Deployment cycle, Six Sigma
80h → 4h

About

Eighteen years in the seam between legacy and the next platform.

Dynamic, solution-driven, and still happiest in the gap between a COBOL estate and a platform a customer can operate.

I have spent eighteen years modernising, designing, and delivering systems that banks, insurers, telcos, and manufacturers actually run. The work sits between legacy and the next architecture: reverse-engineering, risk-based testing, data migration, APIfication, and the tooling that makes a conversion factory repeatable.

At HPE’s Mainframe Alternative CoE I build and maintain Flyway — the backbone used across mainframe-to-Micro Focus programmes. Before that I led digital transformation work in Capgemini’s Legacy Modernization CoE, and spent a decade at TCS designing and delivering for banking, insurance, retail, and telecom clients.

Self-motivated · Hard working · Innovative · A leader · A team player

Products

Tools built in-house, then reused across customer shops.

Five Capgemini products, one for TCS, and Flyway at HPE — analysis, conversion, coverage, and the factory around them.

  1. 01

    Flyway

    HPE MFA CoE

    The backbone for mainframe-to-Micro Focus programmes. Parsers and transformers for COBOL, JCL and CICS; Spring Boot APIs; a Svelte inventory dashboard; Ant rebuilt on Gradle for CI/CD.

  2. 02

    CAP360 Analyzer

    Capgemini

    Static and dynamic source analysis with a digital-transformation roadmap. Deployed across customer estates totalling 200M+ lines of code, with a MongoDB core designed to hold a billion.

  3. 03

    DCC

    Capgemini

    Data Convert and Comparison — migrate and validate IMS-DB, DB2, VSAM, tape and flat files onto SQL or MongoDB. The factory behind EBCDIC-to-ASCII dual-run testing.

  4. 04

    BREAD

    Capgemini

    Business Rules Extractor, Aggregator and Documenter. Pattern matching that tags applications and turns buried rules into the documentation modernization actually needs.

  5. 05

    DAMM

    Capgemini

    DevOps application monitoring — views on progress, spend, and where effort concentrates. One of five finalists for a DevOps Industry award.

  6. 06

    CapCover

    Capgemini

    Code coverage for large rehosting programmes. Traces test data through converted code and reports into DAMM so coverage is visible across the estate.

After hours

VOTFOR

A live talent portal — an open stage for candidates to show work and be rewarded through crowdsourcing.

Auto HFT

A high-frequency trading bench for custom strategies against crypto and other tradeable books.

Selected work

Programmes, products, and the conversion factories behind them.

  • HPE MFA CoE / Telefónica

    Jun 2024 – Present

    Flyway — APIs, dashboard, modern build

    Tools specialist · Full-stack · UI/UX

    Exposed Flyway’s findings as Spring Boot APIs and built a Svelte frontend so Telefónica can review legacy inventory at artefact level and send feedback into the conversion loop. Moved the transformer build from Ant to Gradle.

    • Reports and features available as microservices for developers and third-party tools
    • Interactive review of conversion findings, not static dumps
    • Centralised Gradle build ready for the CI/CD toolchain
    Spring BootSvelteTypeScriptPythonGradleMaven
  • Telefónica

    Jun 2022 – Present

    Mainframe re-platforming

    Mainframe migration specialist

    Customise Flyway so Telefónica can leave the mainframe footprint while keeping the same codebase and business logic on Windows via Micro Focus. Conversion of COBOL, JCL, CICS and DB2 is fully automated.

    • End-to-end automated conversion of core language and data components
    • Same business logic, new runtime — Micro Focus on Windows
    Micro FocusMainframesDB2Flyway
  • AG Insurance

    Apr 2019 – Jun 2022

    Risk-based batch testing & data migration

    Modernization consultant · Data migration analyst

    Designed a cost-effective, automated way to prove the batch heart of a core insurance estate on Windows. Dual-run: each batch fires on mainframe and Micro Focus; files convert EBCDIC to ASCII; results validate without a room full of checkers.

    • New strategy for huge, complex batch applications
    • Automated migrate–convert–validate, including Control-M triggering
    • Customer Delight and Innovation awards, 2019 & 2020
    Micro FocusMainframesControl-MIMSDB2DCCCAP360
  • The Hartford

    Nov 2018 – Mar 2019

    Mainframe optimisation analysis

    Technical architect

    Peak-time CPU and MIPS utilisation on personal-lines applications. The brief: spend less on the box without touching the business.

    • 40+ opportunities to cut CPU and cost
    • Led a team of 10 through analysis, tests, and signed-off inferences
    MainframesIMSDB2AssemblerCAP360
  • Aegon

    May 2018 – Oct 2018

    Data migration factory

    Modernization consultant · Data migration analyst

    EBCDIC-to-ASCII file conversion so an aging, still-growing mainframe estate could run the same logic on LUW. Each file migrates independently; JCLs written in development reuse through test, pre-prod, and prod.

    • Region-portable migration, file by file
    • Led 14 people on process, automation, and quality
    Micro FocusMainframesControl-MDCC
  • DealerTrack

    Oct 2017 – May 2018

    Dealer management modernization

    Modernization consultant · Integration architect

    Roadmap from a tightly coupled AS400 estate toward microservices, extracting business rules and integration points for Cox Auto’s dealer and vehicle platforms.

    • Component boundaries drawn as candidate services
    • Automation for technical debt, job cards, and feature reports
    • Templates for technical and business documentation
    AS400AWSCAP360
  • Barclays

    Mar 2017 – Sep 2017

    Triumph cards platform

    Modernization consultant

    Componentised the central cards system to shrink mainframe footprint and size the modernization. Governance so debt and boundaries stay visible.

    • 40% of components identified as technical debt
    • Automated field-level CRUD and file-impact reporting
    MainframesAWSCAP360
  • Royal Bank of Scotland

    Aug 2015 – Feb 2017

    Lending application

    IBM BPM developer · Integration architect

    Built from scratch so relationship teams could take a lending request through the full customer lifecycle — personal and commercial — across the bank’s brands. A UK client trusted the move from mainframe work onto mission-critical IBM BPM.

    • Greenfield BPM for lending, both retail and commercial
    • Two-year contribution as the integration architect
    IBM BPMIntegration
  • Boeing

    Jun 2014 – Jul 2015

    Wiring Information and Release System

    Technical lead · Project manager · Automation consultant

    System of record for electrical wiring on commercial airplane models. Configuration management of wiring information across the life of the airframe.

    • Delivery leadership spanning development, test, and automation
    Configuration managementAutomation
  • Eircom

    Aug 2008 – Jun 2014

    Telephone Information System

    Mainframe developer · Technical lead · Project manager

    The billing system for retail and wholesale switched services — order through to payment. TIS billed about €1.25 billion a year to 1.5 million residential and business customers.

    • Six years on Ireland’s core telco billing platform
    • Delivery, quality, and a team of 10+ at TCS
    MainframesBillingCustomer care
  • Nielsen

    Feb 2010 – Jan 2011

    Media research (NMR)

    Mainframe developer · Technical lead · Project manager

    Television audience measurement — national and local ratings in the U.S. and in 30 countries.

    • Audience measurement at national and local grain
    MainframesMedia research

Expertise

A modernization practice, not a single stack.

Practice

  • Mainframe modernization
  • APIfication & microservices
  • Solution design
  • Data migration
  • UX / product UI
  • Reverse engineering
  • Test automation
  • MIPS optimisation

Languages

  • Java
  • COBOL
  • PL/I
  • JCL
  • REXX
  • Python
  • Svelte
  • PHP
  • TypeScript

Data

  • DB2
  • IMS DB
  • VSAM
  • Postgres
  • SQL Server
  • MongoDB

Platforms & tools

  • Micro Focus
  • Spring Boot
  • Gradle / Maven
  • Docker
  • Azure DevOps
  • IBM BPM
  • Control-M
  • HP UFT / ALM
  • Jira / Confluence

Bachelor of Engineering, Computer Science, Anna University. 2002 – 2006.

Experience

Three houses, one through-line: make the estate movable.

  1. 2022 – Present

    Hewlett Packard Enterprise

    Technology Consultant

    • Mainframe Alternative (MFA) Center of Excellence
    • Parsers, transformers, APIs, and UI for Flyway across Micro Focus programmes
    • Unit-level recognition and 1,500+ Star Points for modernising the backbone
  2. 2017 – 2022

    Capgemini

    Modernization Consultant · Digital Transformation Lead

    • Legacy Modernization CoE — re-hosting and re-platforming
    • Risk-based migration of core applications from mainframe to Windows
    • Automated EBCDIC-to-ASCII convert-and-validate
    • Additional hats: data migration, MIPS optimisation, pre-sales
    • Customer Delight and Innovation awards, 2019 and 2020
    • Led up to 25 people on LRCOE work with next-gen talent
  3. 2007 – 2017

    Tata Consultancy Services

    Solution Designer

    • Banking, insurance, retail, and telecom delivery
    • Delivery, requirements, resource, quality, contract, and risk for a team of 10+
    • BPM developer, technical lead, test automation, mainframe design
    • Six Sigma Green Belt — deployment effort from 80 hours to 4 via DMADV

Recognition

Delivery, invention, and the odd award along the way.

Six Sigma Green Belt

Cut post-deployment file creation from 80 hours to 4 by designing a DMADV tool that stopped the failures after every release.

1,500+ Star Points · HPE

Recognition for deliveries and initiatives while modernising Flyway in the MFA CoE.

Customer Delight & Innovation · Capgemini

Awards in 2019 and 2020 for the mainframe-to-Micro Focus re-platforming programme and product work.

DAMM · DevOps Industry awards

One of five finalists. Visibility on where a DevOps implementation spends time — and where that spend can fall.

On the Spot · Best Team

Six On the Spot awards for delivery and team development. Three Best Team awards for parallel programmes, on time and on budget.

Practice builder

Interviewed 50+ people for college partner connect and mainframe practice drives. Flying-squad cover for legacy delivery issues across the organisation.

Contact

Start a modernization conversation.

Dublin-based. Available for consulting, CoE build-out, and conversion-factory design across insurance, banking, and telecom.

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