Harjot Singh Rana

I've built products at Moonshift and SignVault.io, from an AI app builder used by 1,200+ users to e-signature APIs serving 4,000+ registered users.

At Moonshift, I re-architected a multi-agent generation pipeline that raised end-to-end generation success from 46.2% to 76.7% and cut median prompt-to-live deployment time by 32%. I also built SSE-based observability that streamed 7.3M+ events across 2,000+ production runs.

At SignVault.io, I owned Express.js and PostgreSQL REST APIs, real-time Socket.IO notifications, and customer document workflows in Next.js. My work also integrated Stripe, Logto, AWS S3, Redis, ELK, and Azure Key Vault-backed PDF e-signing.

I also build open-source tools, including Reinstate, a Go CLI for encrypted cross-platform AI coding-session synchronization, and Zyflo, an accessible animated React component library showcased at GitHub Universe 2025.