Product manager & builder
I’m Mike Kamaev. I use research and product data to find the cause, then work with the team until the fix is live.
I’ve spent 7+ years working on B2C products across gaming, dating, streaming, and e-commerce. Most recently, I built and launched Tinta Voice myself.
Current flagship
Tinta Voice is a local voice-to-text app for Apple Silicon Macs. Hold a hotkey to dictate into the active text field, or drop an audio or video file for local transcription.
I handled the app UX, licensing, updates, trial, pricing, checkout, legal pages, analytics, and the website.
Selected work
Three examples from gaming, dating, and a product I built myself.
cs.money · Gaming marketplace
I joined to improve onboarding. I found bigger problems in Trade and payments, 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 study3× top-up conversion2× completed trades3.2M → ~7M MAU
DOWN · Dating app
At DOWN, I worked across the experiment pipeline, from hypothesis through release and analysis. The team shipped one to three experiments a week.
43% win rate+40% Android revenue5–10% lift per winner
Zero to one · Gaming
I owned the product strategy, economic model, feature set, and P&L. The team built and launched the marketplace in six months.
0 → 16 months to launchFull P&L ownership
Previously: ivi.ru, Voximplant, Rambler
Fixed-scope B2B pilots
I’m testing two research and operations services. Each has a fixed price, a short deadline, a complete sample, and clear limits. In both, I turn scattered source material into a register with links back to the evidence.
These are early pilots. I do not provide construction-compliance or procurement advice. I organise the records and sources; clients and their advisers decide compliance, eligibility, and bids.
I organise shared documents and official lookup results into one register. It shows what is present, missing, expiring, or unresolved.
View the cleanup pilotI find live EU furniture notices and recent awards, link each entry to an official source, and list what still needs checking.
View the tender pilotAbout
I started in tech at Rambler and have spent 7+ years working on B2C products. At cs.money, I moved from onboarding to ownership of the core marketplace. Company revenue grew 4× and MAU rose from 3.2M to ~7M during that period. At DOWN, I worked on onboarding and monetization experiments. I now build my own products too. The latest is Tinta Voice. I took it from an idea to a paid launch.
See the B2C product audit“Hiring Mike was one of the best decisions for the company. He was a rock for the young team and fresh air for me. His skills and knowledge allowed us to transform the company's primary and other parts into successful user-oriented products. He covers the area where others should have three people: managing the 20-person team, product and business development, product strategy, risk management and also raising & consulting the rest of the product teams.”
Work with me
Tell me what you are trying to improve, launch, or fix. I’ll tell you whether I can help and what I would do first.