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Tanishk waving hello

Hi, I’mTanishkWelcome to my world.

4× startup founder Head of Product AI-native builder 10 years of experience Fashion Japanese culture Art & design Tinkering
Latest articleJun 2026The Rules That Don't Exist

Most hobbies come with an unofficial rulebook nobody wrote. The rules spread, people follow them, and something simple becomes unnecessarily hard. This is about why that happens and what to do about it.

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Latest postJul 2026

“Every founder unlocks their domain expansion eventually, usually by the fourth loss-making startup. Mine is Unlimited Runway: a barrier technique that traps you in a 2BHK hacker house in Koramangala where every bed is a bean bag, every wall is a whiteboard, six founders share zero revenue, and rent is paid in equity. My cursed technique is announcing a sovereign LLM for Bharat, then shipping a ChatGPT wrapper that burns 4x more cloud credits than the subscription revenue. The only escape is a successful exit. We are pre-revenue, pre-idea. Nobody is leaving.”

The short version
10years in startupsstartup founder35Musers shipped to$3Mraised
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FacetThe open-source design system this whole site is built on — plain HTML/CSS/JS, no build step, no framework. Free to use.
No build stepThemeableA11y-firstMIT
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Featured appBudget breakdownFree · installable · works offline
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An article, a post, an app — nothing else.

AI consultingI help teams ship AI, on the side — my separate practice.Find out more →
In the shopA product I makeSomething I design and sell — ships worldwide.₹1,499Buy now
▶ YouTube · PlaylistWorld, India, and Trade19 videos · plays right here
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Now showingJapan Habba 🎌Bengaluru’s Japanese culture festival — brands, booths and a whole lot of matsuri.FEST · BENGALURU · 2027Get your pass →

Ten years of startups. Four companies. Millions of users. I build AI products, and I build with AI this site is the proof of work.

Welcome to my app store.

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Ongoing right now

01 · Main questA decade in startups
Ten years in startups, mostly as a product manager — and now all-in on building with AI.
10 yrs of startups founder35M users$3M raised
Full-time
Building with AI

Upskilling full-time by building with AI — products, tools, and this site — and sharpening a hands-on, AI-native product craft for what's next.

fluffbotics
Head of Product

Leading AI and product strategy for a conversational robotics startup, scaling chatbots to 25M users.

CareStack
Staff Product Manager

Owned payments and patient experience products for a US dental practice management SaaS.

Revenoid (Evabot)
Senior Product Manager

First PM hire at a US B2B AI sales tool; introduced product culture and led the company's pivot to AI.

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02 · Side questsMentoring & side builds
The day job was never the whole story — I mentor, run a Japanese culture festival, and build most nights.
IntNex
Mentor

Mentoring an AI productivity startup for the education sector.

SR Aerospace
Mentor

Built the full business division; set up sales, marketing, and government/defence relations channels.

Skello
Mentor

Advised on GTM strategy and business planning.

Octave Advisory
Co-Founder

Co-founded a Web3 advisory firm in Dubai; 15+ clients including local banks and government organisations.

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03 · The extrasSkills, awards, education
Agentic AIorchestration & tools
LLM fine-tuningtrain & adapt
LLM evaluationmeasure what ships
RAGretrieval systems
Prompt designthe craft
AI cost9× cheaper inference
0→1 productszero to shipped
Product strategywhat to build, why
Growth & PLGloops that compound
Full-stackship it end to end
MobileiOS & Android
System designscale & structure
Sales & GTMtake it to market
Fundraising$3M raised
9 industriesSaaS, health, web3…
Thiel finalist+ 3× national wins
BBA, dropped outto build · NTSE scholar
Japaneseculture & language

Everything on Work →

04 · ContactSay hi

Drop me an email or a text.

Social proof

What people say

Friends, colleagues and clients — in their words.

Rohan Mehta@rohanbuilds · Co-founder, Koo

Tanishk ships faster than anyone I’ve worked with. He took our chatbot from idea to 10M users in a few months. Relentless.

Aditi Sharma@aditidesigns · Design partner

He thinks in products AND pixels. Rare to find someone who does the strategy and sweats every detail of the craft.

Kenji Tanaka@kenji_jp · Japan Habba

Brought real sponsors and structure to the festival. Reliable, warm, and impossible to out-work.

Priya Nair@priyapm · Ex-colleague, CareStack

The PM every founder wishes they had. Turned our payments product around in weeks, not quarters.

Sam Okafor@samokafor · Client

Cut our AI inference costs 9× and never once made it sound complicated. A genuine builder.

Devika Rao@devikar · Friend & collaborator

Impossibly curious. He’ll learn a whole new stack over a weekend just to prototype an idea that won’t leave him alone.

Marcus Lee@marcuslee · Advisor

Tanishk is who you call when it needs to be built right and built now. He just makes things happen.