Software Engineer

Hi, I'm Himanshu 👋

Software Engineer — personal portfolio of Himanshu Jain

I take products from zero to shipped — web, mobile, backend, payments, and on-chain.

Portrait of Himanshu Jain

Currently at GastroSmart. Before that, founding engineer on a Web3 ticketing platform — I built the web app, organizer dashboard, iOS scanner, and the on-chain minting pipeline.

Selected workGitHubOpen to full-time & contract
~/selected-work

Selected Work

Products I've owned end-to-end — two, in depth. Not a pile of clones.

~/experience

Experience

Internship → founding engineer → full-stack product work.

  1. Software Engineer·GastroSmart

    Jan 2026Present
    Full-time·Remote
    • Building full-stack product features for a production food-catering platform.
    • Working across Nest.js APIs, a PostgreSQL/Drizzle data layer, Redis, and the Next.js app.
    Next.jsNest.jsPostgreSQLRedisDocker
  2. Founding Engineer·Mintix

    Dec 2024Jan 2026
    Full-time·Remote
    • Sole engineer — built the web app, organizer dashboard, React Native iOS scanner, and backend from scratch.
    • Designed the on-chain minting pipeline (Solana + Metaplex) that turns each ticket into an NFT.
    • Wired Stripe payments end-to-end into the ticket purchase → mint flow.
    • Shipped the full ticketing flow — purchase, seat selection, NFT minting, and mobile check-in — ahead of the company's launch.
    Next.jsReact NativeSolanaStripeDrizzlecase study
  3. Frontend Developer Intern·Hexleap

    Apr 2024Jan 2025
    Internship·Remote
    • Built dashboards and marketing/landing pages from scratch as a frontend developer.
    • Focused on reusable component architecture and smooth, considered interactions.
    Next.jsReact QueryTailwindFramer Motion
  4. Freelance — Full-stack Engineer

    Jan 2024Present
    Freelance
    • Built an internal work-management platform — a flexible, ClickUp-style workspace — for a Singapore-based company.
    • Owned it full-stack: a flexible custom-field data model, permissions, and real-time updates.
    • Delivered production features across international client projects, alongside my full-time roles.
    Next.jsNode.jsPostgreSQLDrizzlecase study
~/activity

Consistency

The last year on GitHub — private work included.

 
~/stack

Stack

Tools I reach for. Filled = daily driver · outline = worked with.

Languages
TypeScriptJavaScript
Frontend
ReactNext.jsReact NativeTailwindFramer Motion
Backend
Node.jsNest.jsHonoExpress
Data
PostgreSQLDrizzleRedisPrismaMongoDBSupabase
Payments & Web3
StripeSolanaMetaplex
Infra
DockerVercelGit
~/about

A bit about me

I care about owning a product end-to-end — auth, payments, data models, the mobile build, and the deploy included.

Most of what I've learned came from figuring things out myself — unfamiliar codebases, production bugs, infrastructure problems, and features with no Stack Overflow answer waiting. Lately I've been deep in backend-heavy product work.

~/contact

Let's build something

Open to full-time and contract roles. The fastest way to reach me is email — I read everything.

Designed & Developed by Himanshu Jain

© 2026 All rights reserved.