01 · SaaS · our own product
SellBro
- Rails
- PostgreSQL
- Sidekiq
- Hotwire
- MCP
- LLM
Why did our Ozon margin drop this week?
Bids in campaign 812 went up; ad spend is 31% of revenue. I suggest lowering the bid to bring it down to 5%.
Challenge
Marketplace sellers run their unit economics in spreadsheets and lose money on ads, pricing and picking errors.
What we built
A platform for sellers on Wildberries, Ozon and Yandex Market — Russia's largest marketplaces: unit economics, supply planning, price protection, picking error control, AI replies to reviews. Its MCP server gives agents hundreds of store operations.
Result
- Agents change prices and bids by policy — every action is logged and reversible
- The owner runs the store through an AI assistant in plain language
- Runs in production every day, on real stores' money