CK Chris Kubicki
Poland

Chris Kubicki

Maker of SnaT, VMC and GameSwapHub. Also the developer companies call when something needs building, fixing or hooking up.

Designed & assembled in Poland Rev 2026.09

1. Specifications

Languages
Kotlin, Dart, Swift, Python, Go
Backend
Spring Boot, PostgreSQL, Docker
Mobile
Flutter, iOS, Android
Infrastructure
Linux VPS, Nginx, cron, backups that restore
Focus Mobile apps, ad-hoc engineering support

2. Operating range

  • Mobile apps From idea to release on the App Store and Google Play — solo or inside your team.
  • Ad-hoc support Extra engineering hands for software houses and companies that need to hit the ground running.
  • Backend & infrastructure APIs, databases and deployments that survive the night.

3. Selected workMore apps and references available on request.

  1. 2026
    KseF-app

    Invoice management for the Polish National e-Invoicing System (KSeF) — sync, archive and dashboard. Go + React.

  2. 2025–2026
    GameSwapHub

    Retro game swapping platform. Kotlin, Spring Boot, PostgreSQL, Docker on a VPS. Live and taking swaps.

    gameswaphub.com App Store Google Play

  3. 2020–2026
    SnaT

    Trail and ride tracker with GPX recording, favourites and cloud sync. Flutter, Firebase.

    App Store Google Play

  4. 2019–2026
    VMC

    Companion app for Vector hardware — device discovery, configuration menus and file downloads. Flutter.

    App Store Google Play

4. Integrations

  • Microsoft Intune Managed devices and app configuration for corporate fleets — rollout, policy and updates.
  • Firebase Push notifications, analytics, crash reporting and cloud sync.
  • BLE & IoT Talking to hardware over Bluetooth Low Energy, and to devices beyond the phone.
  • PostgreSQL The database behind GameSwapHub — schema, migrations and backups that restore.
  • Sign-in & social APIs Facebook, X and Google accounts, plus the APIs behind them.
  • Google Analytics Usage tracking, and the numbers behind product decisions.
  • 01.AI image analysis AI image analysis in GameSwapHub, through the 01.AI service.
  • Native bridging Flutter and React Native wired into native platform code — both directions.
  • Unity 3D in Flutter Interactive 3D scenes embedded inside a Flutter app.

5. Service & support

Something to build, fix or hook up? Write — replies usually land within a day, EU timezone.

  • Rescue & takeover Apps from developers who moved on, and projects left half-finished by vibe coding. Migrations off no-code platforms too.
  • Store presence Apple and Google review problems, appeals, and keeping a listing live and current.
  • Awkward cases PWA instead of native, restricted industries, and anything that doesn't fit the standard store mould.

All services →

Happy to talk through whatever you're up against.

chris@kubicki.live