Project closed in 2026
MusicBrainz catalog integration
Integrated MusicBrainz catalog (127,000+ artists), ListenBrainz scrobbling, and a Telegram Mini App for mobile library access.
Technical context
Nuxt, TypeScript, Telegram Mini App
Kaliningrad, RussiaBuilding software since 2010
Nick Kosarev
Fullstack Developer / Tech Lead
I build web products across interfaces, backend services and infrastructure. Foodtech and fintech experience; hands-on responsibility from data models to release.
Experience
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EXPI · ИП Петров И.И.
Tech Lead / Fullstack Developer / DevOps
Full experience and responsibilitiesSole engineer for a fintech platform: architecture, implementation, infrastructure and releases.
- Migrated PHP data and services in stages using ETL, parallel reads and reconciliation. Decoupled copy-trading workers from PHP; portal migration remained in progress.
- Moved Matrix to a cloud worker with idempotent commands, broker reconciliation, leases and pausing on uncertain state. Prepared a paid subscription and public offer for launch; Matrix remained in production testing.
Case studies
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Read case
Project closed in 2026
Audio transcoding pipeline
Server-side pipeline: FLAC/MP3/OGG upload, transcoding to multiple formats, S3 streaming. Lossless playback in the browser from any device.
Technical context
Nuxt, TypeScript, S3, Node.js
Projects
Past independent products and public source. Closed projects are labelled; the engineering work remains available.
NextOrders
An open-source food-ordering platform with SSR, multiple languages, a persistent cart and guest checkout.
Meloteka
Project closed in 2026
Built a music catalog with a web app, Telegram Mini App, Subsonic API compatibility and audio transcoding.
Startodel
Project closed in 2026
Built a food-delivery website platform with menus, online orders, payments, notifications and multiple languages.
ChatGame
Project closed in 2026
Built an interactive Twitch game with chat commands, real-time synchronization and a Telegram Mini App.
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