Harsh Jain

I’m a Software Engineer in Pune, building production full-stack web applications at scale with React, Next.js, Node.js, and TypeScript—often with AI-powered product features. I like owning features end to end across UI, APIs, and databases, especially in multi-tenant architectures.

At Osmos, I shipped a permission-gated, configuration-driven scheduling feature enabling hour-level campaign start and end times across Product and Display ad flows, delivered across 3 apps with zero regressions. I also owned the end-to-end onboarding for OsmosX, cutting new-user setup time by roughly 35% and improving activation.

I led a migration of Display, Sponsorship, and in-store campaign flows onto a unified review system, removing duplicated code and standardizing behavior across ad types. I built scheduled reporting and an internal Debug Console to track and analyze product and display ad events, reducing event debugging time by around 40%.

Previously as a Frontend Intern, I built AI-powered ad creative generation (copy and images) with multi-language support and live generation states. I’ve also created projects like NewTube (streaming app with tRPC and PostgreSQL), GitSync AI (LLM + RAG code/commit analysis), and a Jira clone with real-time collaboration, alongside 1000+ DSA problems and strong competitive-programming ranks.