Work
Selected product engineering work.
Paul Titov & Co publishes anonymised notes from real product engineering work because almost all client engagements are protected by NDA. We describe the system, our responsibility, technology, and delivery context without inventing client names, results, revenue figures, or endorsements; additional evidence may be discussed privately only where the client permits it.
Evidence without breaking confidentiality
Our public portfolio is intentionally selective. We work under formal service agreements and non-disclosure agreements, often inside products and infrastructure that clients do not want attributed to an external team. The notes above describe real delivery while withholding names, proprietary interfaces, production data, security details, and commercial results that we do not have permission to publish.
For qualified projects, client references and additional context may be available privately where the relevant agreement permits it. The strongest evidence is the engineering itself: architecture, integrations, operational states, deployment, measurement, and a system that continues to run after launch.
Commerce system — store, apps, Telegram
One catalog across a Laravel store, iOS and Android apps, and a Telegram shop. Design, measurement, acquisition, and store listing were part of the same engagement.
- Laravel
- PHP
- MySQL
- Redis
- Elasticsearch
- REST APIs
- Swift
- Kotlin
Utility PWA cluster
A cluster of lightweight progressive web apps — weather, horoscopes, radio, FX rates, and quotes — wired to Binom, adaptive landers, and paid traffic.
- PWA
- Service Workers
- Workbox
- Vue
- Vite
- PHP
- Binom
- Adaptive landers
Ethereum checkout rails
Pay-in-ETH for a digital product — wallet connect, on-chain confirmation, and an unlock on the client’s own site. No token launch, no exchange.
- Ethereum
- Solidity
- ethers.js
- viem
- WalletConnect
- MetaMask
- Alchemy
- Node.js
Marketplace catalog ingestion
A product feed for the client’s own catalog, drawn from Amazon and eBay — under rate limits, blocks, and layouts that change without notice.
- Python
- PHP
- PostgreSQL
- Redis
- Queues
- Workers
- Change detection
- Schema mapping
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References are available where permitted.
Tell us where the product is today.