Doniyor Murodkulov

Crypto mining pool, fintech arm · Coinhold, a deposit product paying rewards for holding crypto · Flutter, Dart, BLoC, DDD, GitLab CI/CD, Codemagic, unit, widget, golden and integration tests

• Led two end-to-end refactors of large feature areas in the wallet; scoped, sequenced and delivered both on schedule.
• Worked inside coordinated release trains in a large Flutter team, on a wallet serving 35,000+ monthly active users.
• Introduced AI-assisted test writing across the team; the feature areas brought under the new coverage shipped with no regressions reported.

Marketplace, streaming and retail · three products delivered end to end · Flutter, BLoC, Clean Architecture, DDD, unit tests

• Million TV: built a streaming app for Uzbek films and series from zero, with a player on ExoPlayer — language and quality selection, episode navigation, resumable playback.
• Neotech: shipped the 7Tech marketplace to web, iOS and Android from a single codebase.
• Cuppy: built an owner console and a customer app — shop locations on the Google Maps SDK with custom markers, charts and gauges drawn in CustomPainter.

Delivery marketplace · B2B merchant app used by shops, cafés and restaurants · Flutter, BLoC, Feature-First DDD, WebSockets, CircleCI, unit tests

• Raised crash-free users from 68% to 98% in two months by triaging crashes to root cause and tightening the release process.
• Replaced order polling with a WebSocket pipeline, cutting the delay before merchants saw new orders.
• Promoted to Mobile Tech Lead in eight months; led three engineers and owned mobile architecture, releases and CI.

Software outsourcing — backend, mobile and ML teams · Tegen, a loyalty app for a meat retail chain · Flutter, BLoC, DDD, REST

• Shipped Tegen to the App Store and Google Play — customers claim rewards through in-app QR codes, shops scan them at the counter; delivered two further client applications alongside it.

Software agency · HR application for a national bakery chain across 100+ stores · Flutter, GetX, BLoC, REST

• Built the interface and the REST integrations, and moved from intern to engineer inside six months.

Consumer and small-business software · OVVOZ music player, and a CRM for an auto-repair shop · Flutter, Provider, Firebase, SQLite (moor / drift)

• Built OVVOZ, a Tajik music player with a local SQLite library on moor (now drift), and a CRM for an auto-repair shop on Flutter mobile and web over Firestore.

Competitive speedcubing platform · practice timer and live 1v1 races · Flutter, Kotlin, Swift, NestJS/TypeScript, PostgreSQL, Redis

• One product across four codebases — Flutter, native Kotlin, native Swift and a NestJS backend — on one architecture and one real-time contract over WebSockets.