Raj Jaiswal

Founder and product builder: Raj has repeatedly founded and shipped product-focused startups (Fetchum; later ventures referenced as Neyon/Neyon Labs) and now builds developer-facing tooling (Witrium). His background shows hands‑on product work from prototyping mobile/web apps (real‑time matching, payments, chat) to building AI‑driven e‑commerce/product discovery and web‑automation products. brown+2

Experienced backend systems engineer: public coverage and biographical pages cite multi‑year backend engineering roles at Circulation/ModivCare and Gopuff where he worked on scheduling, booking, procurement, demand forecasting, and large‑scale data workflows—indicating strengths in building scalable, real‑time asynchronous systems. ibtimes+1

Technical product ownership and developer tooling: Raj appears as a maintainer/owner of Witrium client tooling (npm package metadata and a Witrium GitHub repository exist), showing involvement in shipping SDKs and platform tooling in addition to product work. jina+1

Active in the Brown entrepreneurship community: his work with Fetchum and participation in Brown's Breakthrough Lab, plus later mentoring/ambassador roles mentioned in profiles/interviews, show ongoing involvement in university entrepreneurship and alumni mentorship. brown+1