I build and fix the parts of your product that touch money.
Faster Shopify stores and reliable checkouts for D2C brands in India. Production-ready MVPs and internal tools for founders worldwide.
Track record
- Cultus, a live marketplace I built end to end: 12 brands and ₹2.9L+ in sales in its first four months.
- Back-office tools for Deribit, the Coinbase-owned crypto derivatives exchange.
- A tax-filing module used by 100,000+ people in Belgium.
- A Discord bot I rewrote and scaled to 2.4M members across 10,000+ servers.
Selected work
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Cultus
Live since 2026A fashion marketplace where 12 brands sync inventory every minute and checkout runs on Razorpay with partial cash on delivery.
Next.js, Supabase, Shopify Sales Channel, Razorpay
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Deribit (Coinbase)
Via NoovosoftBack-office tools for a crypto derivatives exchange, moved from Angular to React without stopping feature work.
React, TypeScript, Vitest, Erlang/OTP
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Twinntax
Via NoovosoftBelgium's personal income tax return as 15 dynamic sections, generated from official schemas and versioned by tax year.
React, TypeScript, MobX, i18n
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Bro
2019 to 2024A legacy Discord bot I took over, rewrote and scaled to 10,000+ servers with gateway latency under 60 ms.
Node.js, MongoDB, Redis, Docker on AWS
Smaller things
- Spotify Summary. Sorts and summarises your playlists by release date or artist, using the Spotify API.
- The clouds at the top of this page. A WebGL shader that dithers video live, from my generative art experiments.
About
I'm Parth, a product engineer in Pune. For four years I built production React and TypeScript apps, most recently back-office tooling for Deribit, the Coinbase-owned derivatives exchange.
On the side I built Cultus, a fashion marketplace that started as a side project with two others and is now live with a dozen brands. I own its technology, from the storefront to the Shopify app.
I work in IST with overlap for US, UK and EU mornings. When I'm not shipping, I play capture-the-flag security competitions, make generative art and read too many books.
Experience
- Live since Apr 2026CultusTechnology and architecture: storefront, checkout, brand dashboard, admin and the Shopify app
- Sep 2022 to Sep 2026Noovosoft TechnologiesFrontend developer on Deribit (Coinbase) and Twinntax. Mentored 10+ junior developers and ran 5+ technical interviews.
- Apr to May 2022Corplan AdvisorsWeb development intern. Shipped a Next.js landing page with a 90+ Lighthouse score.
- 2019 to 2023Smt Kashibai Navale College of EngineeringBE in Computer Science
Tools I use most
React, Next.js, TypeScript, Node.js, Supabase and PostgreSQL, the Shopify Admin API, Razorpay, Vitest and Docker. I've also shipped Erlang/OTP in production.
Questions
Do you work hourly?
Mostly fixed price, with three options so you choose the scope. For ongoing work there's a monthly care plan.
What does a project cost?
Store speed sprints start at ₹30,000. MVP audits start at $850. Integrations and internal tools usually land between ₹1L and ₹4L, or $4k and $15k. You get exact prices after a 20-minute call.
How do I pay?
Indian clients can pay by bank transfer, UPI or a payment link. International clients pay by bank transfer in USD, EUR or GBP.
Will you sign an NDA?
Yes. We sign a mutual NDA before you share anything sensitive.
Who owns the code?
You do, once the final invoice is paid. It lives in your repository and your accounts from day one.
Which time zone are you in?
IST, with overlap for US, UK and EU mornings.
What don't you do?
WordPress or Wix sites, logo design, SEO-only retainers and native mobile apps. I'm happy to point you to someone who does.