Field Manual - Himanshu AgarwalVol. 01Bengaluru, INFreelance projects
Himanshu Agarwal · Full-stack Software Engineer · Bengaluru

I build and run production systems.

Full-stack software engineer with 3+ years owning web, mobile, payments, and real-time systems from product decision to production incident.

4production apps
100k+submitted and analyzed attempts
~500simultaneous exam takers at peak
Flagship work

AfterBoards & AfterGrad

Read the full case study
AfterBoards CUET product page presenting the mock-exam and performance-analysis experience.
The public CUET product page, showing the exam and analysis experience.

Founding engineer · sole engineering owner

Two exam-prep brands delivered as two Next.js products and two Expo apps on one 17-package Turborepo. I own the product code, releases, and production operation end to end.

  • Timed exam engine100,000+ attempts

    Resumable attempts, server-authoritative scoring, section-wise analytics, disconnect recovery, and roughly 500 simultaneous exam takers at peak.

  • AI content pipeline30 people → automated

    Four providers with automatic fallback, schema validation, repair workflows, and visible failure states.

  • Server-authoritative multiplayer

    Scoped client tokens, atomic first-answer guards, coordinator failover, and no answer keys sent to clients during a live question.

Next.jsReact NativeMongoDBRedisLLMs · 4 providers

Experience

Reverse chronological

Founding Engineer · AfterBoards

Mar 2024 - Present

I'm the only engineer on AfterBoards and AfterGrad, exam prep for IPMAT, CUET and CAT. Four apps on one Turborepo: two Next.js sites, two Expo apps. I built the payout settlement, the timed exam engine, the live multiplayer rounds, and the AI pipeline the content team writes questions with. I also carry the pager.

Next.js · React Native · TypeScript · MongoDB · AI

React Native Developer · Frontend Lead · an2 cabs

Jun 2023 - Feb 2024

I led a team of three, two frontend and one backend, building the driver and rider apps for a Guwahati ride-hailing startup. React Native, live GPS tracking, Azure backend. First time I'd been responsible for other people's code as well as my own.

React Native · Real-time · Team Lead

Founding Engineer (Freelance) · AfterBoards

Mar 2023 - Feb 2024

I built the MVP that became AfterBoards. For most of that stretch I was doing it alongside the an2 cabs job. Once the product started earning, I joined full-time.

Next.js · MongoDB · Server Actions

Product Engineering Intern · OSlash

Feb 2023 - Mar 2023

I built a snippets and link-management system end to end in two months, working directly with the CTO. Cloudflare Workers, GraphQL, Astro.

Cloudflare Workers · GraphQL

The 100k+ figure counts submitted and analyzed attempts in the AfterBoards and AfterGrad exam engine, not a portfolio-wide total.

Selected projects

View all

Logistics SaaS Live · Solo

A road transport business that ran on paper LR books and spreadsheets. Now every shipment, bill, payment and GST return comes out of one system, and customers can pull their own ledger.

Next.js · PostgreSQL

Print Club Live · Freelance

A 3D-printing shop that priced every custom job by hand. Customers now upload an STL, get a price from its volume in the browser, and pay. Staff change products and pricing without calling me.

Next.js · Payments

Pharmulo Building · Pilot

A pharma wholesaler wanted retailers ordering online but would not give up ProfitMaker. So a Windows agent reads the ERP, never writes to it, and drafts bills through the same screen the staff already use.

Next.js · Postgres · Tauri / Rust

Technical range

LanguagesTypeScript · JavaScript
FrontReact · Next.js · React Native · Tailwind
BackNode.js · GraphQL
DataMongoDB · PostgreSQL · Redis · Cloudflare R2
PaymentsRazorpay · Cashfree
AIOpenAI · Anthropic · Gemini · Groq
SystemsTauri / Rust · Electron · Docker · Vercel
Get in touch

For a focused product build or a second pair of eyes on a difficult system, email me.

hi@himture.dev