Parv Khandelwal

Hi, I'm Parv - a freelance Java backend developer working with startups and product teams to build scalable, event-driven systems. Based in Jaipur, India and open to working remotely with clients worldwide.

I live in the Spring Boot ecosystem - designing services around Kafka, tightening concurrency with Redis, and squeezing real performance out of PostgreSQL. I care about the unglamorous parts: idempotency, backpressure, observability, the kind of work that decides whether a system survives Black Friday or not.

Most of what I know I've learned by building. A flash-sale system that holds up at 600+ RPS. A fraud-detection pipeline routing 500+ TPS through Kafka and a Python ML consumer in under 100ms. I bring that same hands-on rigor to client work.

Recently delivered a lead management system for a digital marketing agency — capturing form submissions automatically into a CRM dashboard.

I'm currently taking on freelance backend projects - short engagements, longer retainers, or one-off audits. If you have a system that needs to scale, I'd love to hear about it.