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Kostja
Zhang

“Three years of growth for other people’s AI products. Now building my own.”

Role
Growth operator · Indie builder
Based
Remote · ex-Germany
Operating
AI / SaaS, since 2022
Kostja Zhang — Growth operator & indie builder

From linguistics, to operator, to builder

Linguistics, two countries. Five years undergrad in Russia → five years study/work in Germany. A decade inside other people’s languages teaches the distance between “what the product means” and “the words a stranger would type.”

August 2022 — the operator seat. Joined a CV team doing ops + content. Midjourney arrived; ChatGPT followed. Sat inside Cutout.pro as it held a16z’s top-50 GenAI list. One hundred-plus AI/SaaS products across three years — each one sharpens the same lesson: distribution decides who survives.

July 2025 — the other hand. Picked up Vibe coding on the side. For the first time, prototype / landing page / growth loop fit in the same pair of hands. June 2026 — shipped Oginify in two days (first commercial product of my own). The consulting work continues in parallel; the building is what feeds it back.

“Two hands, one loop: operate to learn the market, build to keep the loop honest.”
Lovable code screenshot and Cursor wrap-up collage

From operating products to shipping them

Picked up Vibe coding in 2025 · June 2026 — shipped Oginify in two days. Oginify.com = free OG image generator, three a day, no signup. The growth playbook now writes itself with the product in the same pair of hands.

Visit Oginify ↗
Stack
Lovable · Cursor · Claude Code (+ DeepSeek API)
Shipped
2026
Workbench illustration — laptop, plant, coffee, notebook

Four takes I’ll defend

  • 01

    The operator who can also ship is unfair

    Growth loop and product loop in the same hands compress feedback from weeks to hours. That window only really opened in 2025.

  • 02

    The growth function is undervalued

    Algorithm > engineering > product > sales > ops on the pay chart. The market returns the same order on the revenue sheet.

  • 03

    Founders don’t lose to better models; they lose to silence

    Most AI products are never seen by the user who would have loved them. Not a model problem — a distribution problem.

  • 04

    Going global is a re-learning problem, not a translation problem

    Overseas channels are web-first and search-first. The playbook built around short video in China does not transplant — it has to be rebuilt from first principles.

The work, in numbers

100+
Products served as operator
3 yrs
Hands-on AI growth
1
Product shipped solo

“If you’re growing — or building — an AI product, I’d like to hear about it.”

Reach me at zyjstc@gmail.com · LinkedIn · X

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