Senior Data Architect · Hogan Lovells → Hogan Lovells Cadwalader

Master data, made trustworthy.

Senior MDM Architect · Data Integration Lead

I build the systems of record that the rest of the enterprise depends on. For the past nine years I've led Master Data Management at one of the world's largest law firms — a platform now feeding 44 downstream systems across 40+ offices — and I'm playing a key role in the firm's merger with Cadwalader, the largest law-firm combination in history, forming the world's fifth-largest firm.

20+
years in enterprise data
9
years specializing in MDM
44
systems fed by the platform
1.2 PB
Hadoop estate run at Merkle
Book cover: When Your Systems Can't Agree — Master Data Management Using the Trust-First Framework, by Shiva Challa
Published — Amazon KDP

When Your Systems Can't Agree

An Executive Field Guide to Master Data Management Using the Trust-First Framework

The field guide I wish I'd had on my first MDM project: a practitioner's framework for building data trust through governance, alignment, and operating model — before the next acquisition, audit, or AI initiative forces the issue.

Drafted with AI assistance and grounded entirely in two decades of hands-on enterprise work. The framework, the war stories, and the judgment calls are mine; the tooling just helped me get them onto the page faster.

$12.99 Kindle  ·  $19.99 paperback

View on Amazon →
The short version

One query, the whole story.

profile.sql
-- the one record everything else joins back to SELECT name, focus, currently, scale, signature FROM practitioners WHERE discipline = 'Master Data Management' AND years_experience >= 20 ORDER BY trust(data) DESC LIMIT 1;
1 row returned
nameShivaram Challa
currentlySenior Data Architect, Hogan Lovells
focusMDM · Data Integration · Governance
scale44 systems · 40+ offices
signatureSelf-healing integration platforms
alsoPublished author · builder

What I do

Three problems I'm trusted with.

Most of my work lives where business-critical systems have to agree on the same facts — people, clients, vendors — and usually don't.

01

Master Data Management

Golden records, match-and-merge, survivorship, and stewardship workflows across People, Client-Matter, and Vendor domains — with the governance to keep them clean after launch.

02

Integration platforms

Centralized data hubs that replace brittle point-to-point feeds: REST/SOAP APIs, message queues, and direct access — engineered to be self-healing, with retry, reconciliation, and error recovery built in.

03

Cloud modernization

Moving legacy estates to Azure and Microsoft Fabric — Terraform infrastructure-as-code, Azure DevOps CI/CD, and medallion-architecture lakehouses — without disrupting what's already running.


Experience

Two decades, four platforms that mattered.

Hogan Lovells
2016 — Present
Washington, DC · 7th-largest law firm worldwide
Senior Data Architect — Data Integration Hub & MDM
  • Technical lead and architect of the firm's Data Integration Hub, the central backbone serving 44 downstream systems at 99.9%+ uptime — with self-healing built in: failed record updates are tracked and automatically retried on the next run, no manual intervention.
  • Built the enterprise MDM solution across People, Client-Matter, and Vendor/Payee domains; led teams ranging from 4 to 14.
  • Playing a key role in the firm's merger with Cadwalader — the largest law-firm combination in history — by migrating Cadwalader's downstream integrations into DIH.
  • Built the user-provisioning system (Workday → AD → Elite 3E) that now runs firm-wide onboarding, eliminating manual work; key role across four prior firm mergers.
  • Drove modernization to Azure and Microsoft Fabric — Terraform, Azure DevOps, and a medallion-architecture lakehouse for spend analytics.
Merkle
2013 — 2016
Columbia, MD
Lead Data Engineer — Big Data Platform
  • Led architecture and operations of a 1.2 PB Hadoop data lake (Cloudera/HortonWorks) for Fortune 500 marketing analytics.
  • Built a reusable automation framework that cut client onboarding from 40+ hours to under two; onboarded T-Mobile, PayPal, ESPN, Geico, Toyota, and more.
  • Company-wide One Team Award for the Cloudera-to-HortonWorks migration.
Lockheed Martin
2009 — 2013
Manassas, VA · Energy Services
Data Warehouse / ETL Architect
  • Technical lead for the EDW/BI platform serving a utility of 150,000+ customers (J.D. Power #1, 2012).
  • Architected a self-contained MDM system in Oracle and the integration layer across WMIS, GIS, finance, and outage-management systems.
Sprint Nextel
2007 — 2009
Reston, VA
DBA & SME — DB Design, SSIS, SSRS
  • Ran a 0.75 TB decision-support warehouse for 20,000 users at a 98% uptime SLA, through a clean SQL Server 2000→2005 migration and SOX rollout.
  • Built early data stewardship by automation: a metadata-management job that detected missing field values and emailed the responsible user a daily digest to fill the gaps — closing the loop without a stewardship tool.
  • Automated performance self-tuning by monitoring DMVs and triggering reindexing only when fragmentation warranted it; published the underlying scripts to the SQL Server community.
  • Cut an Oracle load from 13+ hours to under one with SSIS.

Earlier — InPhonic/Simplexity, NJ Office of the State Treasurer, and other DBA & development roles (2001–2007). Detail on request.

Credentials

Certifications & training.

Certified Scrum Master
Scrum Alliance
Profisee MDS — Administrator
Master Data Services
Profisee MDS — Data Steward
Master Data Services
Introduction to Project Management
University of Adelaide · edX
Microsoft Fabric
Lakehouse & medallion architecture
Azure Fundamentals (AZ-900)
In progress
Side projects

Things I build off the clock.