Badal Kariwal

A working internal tool in a week — not a four-week agency timeline.

I'm a solo senior engineer. I build fixed-scope internal tools, dashboards, admin panels, and MVPs for US startups and small teams — $2,500–$5,000, delivered in 3–7 days. Everything below is live and clickable.

Get a free 48-hour working demo kariwalbadal@gmail.com

🟢 Currently taking 2 build slots · I work US Eastern hours daily

8 years engineering, incl. enterprise data platforms
2 shipped products designed, built & launched solo
3–7 days from scope call to working software
Fixed price agreed up front — no hourly meter

Work — live, not screenshots

Two shipped products, one production client build, and spec demos you can click right now. Spec demos are labeled as such — honesty is part of the service.

Shipped product

Ephoria — caregiver-hiring automation

SaaS I designed, built, and launched solo. Screens job applicants by SMS with a real state machine + parser: hard STOP compliance, quiet hours, human handoff. Try the live in-browser screener.

Live site ↗
Spec demo

Flowline — pipeline health dashboard

Data-pipeline observability: freshness SLAs, run history, failure drill-downs with logs, and an incident view. The kind of internal dashboard data teams pay for.

Open demo ↗Code
Spec demo

Atlas Ops — internal admin panel

Login, admin vs. read-only roles, full CRUD on an orders table, and an audit log that records every change. Demo credentials are on the login screen.

Open demo ↗Code
Production code

The screening engine, in the open

The state machine behind Ephoria's screener — sanitized and public. Enforced guardrails, deterministic parsing with LLM assist, 23 tests, runnable console demo.

Read the code ↗
Client work

Chinmaye Hotels — brand & property sites

Multi-property hotel group: brand site, property sites, menus, and booking-engine integration on masked subdomains. Designed, built, and shipped end to end.

Live site ↗
Shipped product

SutraHaus — AI creative studio

My second business: a productized creative studio with a real portfolio — hotel client work, product campaigns, brand systems. Founder-led, systems-driven.

Live site ↗

I'll build a working version of your tool in 48 hours. Free.

Not a proposal, not a mockup — a deployed, clickable first version of the thing you actually need. You keep it either way. If you want it finished, we agree a fixed price and it ships within the week.

Tell me what hurtsEmail me the spreadsheet, process, or idea that's eating your team's time. 15-minute call if easier.
48-hour working demoI build and deploy a real first version, free. You click around it, not slides of it.
Fixed scope, fixed price$2,500–$5,000 depending on scope. Half up front, half on delivery. 3–7 days.
You own everythingCode, repo, deployment — transferred to you. Two rounds of revisions included.
Email me your problem →

Why free? Because a working demo beats any sales pitch, and I win on speed. Worst case, you get a free tool.

About

Eight years as a software engineer, including enterprise data-platform work — pipelines, warehousing, governance — for large organizations. That work is confidential, so I don't show it; everything on this page is public, live, and clickable instead.

Outside of client work I've designed, built, and launched two products of my own: Ephoria, a caregiver-hiring automation SaaS, and SutraHaus, a productized AI creative studio. Shipping my own products means I've done every part of the job: product decisions, architecture, UI, deployment, compliance, support.

I work solo — the person you talk to is the person who builds. I keep US Eastern hours overlap every working day.

Typical stack
  • TypeScript · React · Node.js · Python
  • Cloudflare Workers, Pages, D1 · Postgres · SQLite
  • Stripe, Twilio, webhook & API integrations
  • Data pipelines, dashboards, reporting
  • Auth, roles, audit trails for internal tools