Soumya Bhattacharya

Enterprise and Solution Architect with 22+ years at IBM designing and delivering cloud migration, legacy modernization, and Generative AI programs across banking, insurance, telecom, retail, airlines, and energy & utilities. Deep migration delivery experience — on-premises estates to Red Hat OpenShift on AWS, a 20+ year mainframe portfolio to Microsoft Azure — combined with hands-on IBM Cloud engineering (Apache Airflow on IBM Cloud VPC, IBM Granite LLMs, Watson challenge POCs). Proven at leading multi-year initiatives end to end — vision to go-live — while mentoring high-performing engineering teams.

Application Architect at IBM India Pvt. Ltd. (2017-11 – Present)

Technical Team Lead at IBM India Pvt. Ltd. (2008-11 – 2016-12)

Application Developer at IBM India Pvt. Ltd. (2004-11 – 2007-12)

Application Architect at IBM (2026-01 – Present)

Modular web-based platform giving Nationwide colleagues a single, unified view of members and their accounts — supporting member search and servicing of current/savings accounts, credit cards, and loans — and positioned as the foundation for the Single Colleague Portal (SCP). With annual transactions growing from 1.4M (2022) to 15M+ (2026), the platform is being modernized via a React migration (from Sencha Ext JS), a hybrid Amazon EKS / Red Hat OpenShift cloud extension, and integrations including mobile authentication and Pega Customer Service.

• Own the end-to-end solution architecture and Solution Intent artefacts (HLD and application design), aligning designs with the modernization roadmap, enterprise guardrails, and Nationwide's technical strategy, and steering them through Design Authority and governance forums.
• Assess infrastructure fitness and performance against non-functional requirements, validating that SAMM's platform can scale to support the modernized solution.
• Review security and compliance guardrails — data classification, encryption in transit and at rest, PCI DSS scoping, and access controls — to ensure sensitive member data is handled appropriately, coordinating across teams to keep the design technically coherent.
• Key contribution — architected a CCDT-based IBM MQ failover modernization that replaced a static primary-secondary model (prone to resource hotspots and slow, manual recovery) with automatic client-side failover, connection-level load balancing, and mTLS/CHLAUTH certificate-based security on SVRCONN channels — proven via a production-ready POC and rolled out through a phased, zero-disruption strategy.

Application Architect at IBM (2025-08 – 2025-12)

Platform that ingests CAST/ARC analysis of legacy source code into a Neo4j graph database and demystifies module dependencies, auto-generating user stories and module summaries with LLMs through a React front end — hosted on IBM Cloud.

• Designed long-running batch demystification workflows on IBM Cloud using Apache Airflow provisioned in IBM Cloud VPC.
• Architected ingestion of dependency graphs into Neo4j and the supporting data model.
• Designed legacy-code demystification using IBM Granite LLMs.
• Delivered supporting POCs validating workload patterns on IBM Cloud VPC.

Solution Architect – Generative AI at Philip Morris International (2025-08 – 2025-10)

Secure, AWS-based Generative AI platform for PMI's Corporate Affairs teams (Switzerland) — a RAG-based Q&A and document-generation system over regulatory, policy, and advocacy content (EU Tobacco Directive, WHO Europe, fiscal authorities, competitor communications) to accelerate intelligence retrieval and the creation of strategic communications.