Independent product studio · taking new projects

rc0 builds the whole product. Schema, API, interface, and the agent that talks to your customers.

A founder-led studio: the engineer on the call is the one who writes the code. Behind it, seven years at venture-backed startups, an AI company co-founded, one bootstrapped exit, and systems that stay running.

Start a project See the work

Work

Four systems in daily use, built by rc0 end to end.

Rock Auto Parts · US auto-parts brokerage

A CRM and an AI call-review pipeline for a phone-sales team

Rock Auto Parts runs its sales floor on a CRM rc0 built from scratch. Every call is transcribed, card numbers redacted, and scored by Claude in three structured passes, with the prompt and rubric version stored on every result. Reps get coaching notes in Slack the same day.

51 Prisma models35 org-scoped, multi-tenant

~4,500 testsagainst Postgres in CI

Next.js · GraphQL · ClaudeAuthorize.net, Shippo, Zoom, Slack

BESD Finance Hub · personal-finance app, via Toptal

A finance agent that never sees raw personal data

Hey-B is a tool-calling agent on Mastra with 12 typed tools and Postgres memory. Personal data stays behind per-user JWT binding and consent gates; numbers are precomputed so the model does no arithmetic. rc0 also rebuilt the backend and shipped the iOS app.

1,012 of 1,121 commitsbackend + React Native app

121 routes, 24 modelsPlaid, Stripe, Array, OTP auth

Mastra · Bedrockmoved off Groq and OpenRouter

MyStorybook.ai · rc0's own product

Personalized AI storybooks, from a photo to a printed book

ComfyUI workflows on RunPod GPUs with round-robin scheduling and cached, deterministic runs. LangChain turns a parent's few lines into a full story. The Shopify flow runs on a Cloudflare Worker, from upload to preview to cart.

250+ ordersshipped as physical books

Cloudflare R2 · D1 · KVuploads, storage, rate limiting

Next.js · LangChainserverless APIs

Aragon AI · AI headshots, 8-figure ARR

Took engineering off the content-release path

Aragon publishes from Notion straight to production through a pipeline rc0 scoped and built: APIs, job orchestration, AST-driven config insertion. rc0 also owned payment reliability across Stripe and Paddle, fixing an idempotency race and adding checkout retries with alerting.

8-figure ARR productsmall, profitable team

Stripe · Paddleretries, idempotency, alerting

SEO + JSON-LD overhaulsite-wide

Services

Three things rc0 is hired for.

01

Products, end to end

Schema, API, interface, deploy. One studio owns the whole thing, so nothing falls between teams.

02

AI agents in production

Tool-calling agents and LLM pipelines with typed outputs, redaction, and versioned prompts. Built to be audited, not demoed.

03

Internal tools and CRMs

The software a team actually runs on: sales floors, finance back offices, order pipelines, Slack-native workflows.

How rc0 works

Three things you can count on.

01

Business logic lives on the server

One query per page load, one refetch per action. Pages stay fast when the people using them are on live calls.

02

Models get structure, not trust

Typed tools, schemas on every output, versions stored on every result, and redaction before anything reaches a prompt.

03

The minimal tool, then culture

rc0 builds for the common case and leaves the rare ones to people. Less code, fewer surprises, easier handover.

Founder

One engineer, start to finish.

Faraz Saifullah Ansari

Founder and lead engineer

Every rc0 project is built by Faraz. Seven years at venture-backed startups before this: founding engineer at Hatica Labs, a Sequoia Surge company, where new integrations drove 30% revenue growth and customer onboarding went from seven days to one; frontend at Tekion; Deqode before that. Co-founder of MyStorybook.ai. Vetted into Toptal's top 3%.

Before rc0

2022 – 2025Founding engineer, Hatica Labs

2020 – 2022Software engineer, Tekion

2019 – 2020Software engineer, Deqode

2015 – 2019B.E. Information Technology, PICT Pune

Also built

GetMagSip · Bootstrapped e-commerce store, sold for $50K within six months.

Seekho · TikTok-style micro-learning app, with a co-founder of 1mg.

Smart India Hackathon 2018 · Railway feedback classifier, 7th nationally.

Résumé LinkedIn GitHub

TOP 3% TALENTVetted byHire me

Toolkit

AI / LLM

Claude, Amazon Bedrock, Vercel AI SDK, Mastra, LangChain, Zod structured outputs, PII redaction, ComfyUI, RunPod

Product

TypeScript, Python, Go, React, Next.js, React Native, Node, GraphQL, Prisma, PostgreSQL, Redis, Temporal

Infra

AWS, Azure, Vercel, Cloudflare Workers, Docker, Terraform, GitHub Actions, New Relic

Have something that needs building?

Tell us what it is. You will hear back within a day.

mfaraz.sa96@gmail.com +1 (469) 608-7866