Mike Kamaev
Menu

Product manager & builder

I build products and fix what isn’t working

I use research and product data to decide what needs to change, then stay with the work until it is live — with a team or by building it myself.

I have 8+ years across marketplaces, mobile subscriptions, and streaming. Most recently, I built the first working version of Tinta Voice in five active build days and took it to a paid macOS release and first revenue in four months.

Live product Built by me
Tinta Voice · macOS Think faster than you type. Recording locally…
Owned end to endProduct, engineering, pricing, licensing, checkout, analytics, distribution, and support.
8+ years
B2C products
Company revenue while I was at cs.money
53 A/B tests
Owned end to end at DOWN
0→1 product
Tinta Voice · idea to revenue

Selected work

What I owned and what changed

Three examples of product work I owned: a core marketplace rebuild, a mobile monetization program, and a zero-to-one launch.

cs.money · Gaming marketplace

Rebuilding the core as revenue grew 4×

I joined to improve onboarding. Funnel analysis showed bigger problems in Trade and payments, so I moved to the core team and rebuilt the main transaction flows. We launched the new site in 2020 and kept the old one available during the migration.

Read the case study

3× top-up conversion2× completed trades+30% direct-purchase conversion

DOWN · Dating app

Mobile monetization through experimentation

At DOWN, I owned 53 end-to-end A/B tests across monetization, onboarding, and product quality.

Read the experiment case

43% win rate~40% Android revenue growthRetention and refund guardrails

Experience note · Gaming marketplace

Took the first version from zero to launch

I owned product strategy, the economic model, the initial feature set, and P&L. The team launched the first version in six months; the product was redesigned after I left.

0 → 16 months to launchInitial version

Previously: ivi.ru, Voximplant, Rambler

Products

What I build and maintain myself

One paid product is live. A second is in development.

Notes — Dictation input
Hold to speak

Live · Independent product

Dictate into any Mac app with one key

Hold a key, speak, and release. Tinta puts the text right where your cursor is.

  • Built the first working version in five active build days, reached a paid public macOS release, and generated first revenue in four months.
  • Owned product, engineering, pricing, licensing, checkout, analytics, distribution, and support. An independent designer worked on the final UI and motion.
Live macOS app Local speech processing One-time license

Building · Tinta Meetings

On-device meeting notes for Mac

A macOS app that already records meetings and turns them into on-device transcripts, summaries, and action items.

Pre-launch

Services

Build a product or improve a live one

Two fixed-scope ways to work with me: launch the first version of a product or decide what to do with a stuck monetization problem.

MVP Build · Web, iOS, or macOS

Turn your idea into a working product

I take your idea, define the first version, design and build it, then hand over the working product and source code.

  • $5,000 fixed price
  • 10 business days
  • One build at a time
See the MVP Build Sprint
B2C Monetization

Decide what should happen next

I take one stuck pricing, paywall, offer, checkout, or activation question and decide what should happen next: test it, repair the measurement, or stop.

  • $1,250 fixed price
  • One journey
  • 5 business days after inputs
See the B2C Monetization Sprint

About

I am curious about why people do what they do

I ask direct questions and would rather say I don’t know than pretend to be certain. I care about understanding my own choices too.

I once wanted to become a film director, and I still watch and rate a lot of films. Outside work, I travel with my wife and raise Bonnie, my Staffordshire terrier.

“Hiring Mike was one of the best decisions for the company. He was a rock for the young team and fresh air for me.”

Simon PolozovFounder & CEO, cs.money

Work with me

Tell me what you want to build or improve

Send a few lines about the idea, the product, or the decision you are stuck on. I’ll reply within two business days and tell you what I would do first.