Nirmay Kadam

I've built Java/Spring Boot backend systems and AI-integrated applications, with a focus on reliable, well-tested production-grade code.

During my internship at Capgemini Technology Services India Limited, I developed RESTful services and background jobs across two microservices in a DDD-based architecture supporting core data-processing workflows. I also created a Spring Boot 3 sandbox to validate database schema updates and wrote JUnit5 and Mockito tests for every service and endpoint I developed.

For AlphaStreams, I architected an event-driven modular monolith using Domain-Driven Design and Hexagonal Architecture, enabling a zero-refactor path to microservices. I built Black-Scholes-Merton and Crank-Nicolson option-pricing solvers, reduced average computation time by 86%, and supported concurrent streams of 400+ priced option contracts per second through a non-blocking FastAPI/uvloop pipeline.

In PrepWarrior, I integrated Spring Boot, Spring AI, and Google Gemini to generate job-specific interview questions, transcribe audio, and provide real-time ratings and feedback. I also secured user-scoped REST APIs with Spring Security, Firebase Admin SDK, and Firebase JWT validation.