Engineering Lead

Working on EPP, Vendavo's core pricing platform. It is multi-tenant, but not in the usual shape: instead of one deployment partitioning its data, each customer gets a dedicated codebase - a world - that takes eps-core as a dependency and expresses most of its behavior as configuration on top of it rather than bespoke code. The core library still carries its original eps name.

• Leading the India team as Engineering Lead while contributing hands-on.
• Working across both sides of the platform: the Spring Boot backend and the React front end.
• Building in the world / eps-core model, where per-customer behavior comes from configuration against the shared core instead of forked logic.
• Supporting SAP application development for a number of different clients alongside the core platform work.

A year on ePro, their long-lived multi-tenant eProcurement application, working almost entirely on tech debt and performance: pulling the framework stack forward, replacing aging infrastructure, and getting load times down for tenants running it hard.

• Upgraded the application from Spring Framework 2 to Spring Framework 6 - four major versions - on a codebase still built on Struts, JSP and servlets.
• Migrated caching from Redis to Valkey.
• Benchmarked candidate libraries against each other rather than picking by reputation, and used the results to drive replacements.
• Worked loading time down under heavy multi-tenant load by profiling the database, the JVM and the libraries in the request path.
• Migrated the batch and streaming jobs.
• Built the pCard service on AWS serverless and implemented the practices needed to meet PCI DSS requirements.
• Managed the servers and debugged production issues as they came up.