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6 followers · 5 following
  • Scalable Capital
  • Braunschweig
  • 10:45 (UTC +02:00)
  • LinkedIn in/nikolai-w

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: YOLOAchievement: Quickdraw

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: YOLOAchievement: Quickdraw

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verbindolai/README.md

Nikolai Wieczorek

Software Engineer working in FinTech. I write back-end Kotlin and Spring most days, with detours into Angular and the occasional embedded side project. Based in Germany. CS B.Sc. from Ostfalia.

Currently building

coffer — a self-hosted coin collection manager with real-time precious metal valuations, portfolio analytics, and Numista catalog integration. Kotlin + Spring Boot backend; the Angular frontend is in coffer-ui, the Docker setup in coffer-deploy.

Selected past work

quizolai — a database and public REST API for German quiz questions. Auth0 login, Stripe-backed Pro tier. Architecture write-up.

etsy-manager — one-click bulk shipping for an Etsy seller, with full DHL Versenden integration. Architecture write-up.

sketcholai — a multiplayer drawing game using Socket.IO.

OpenBudget — an open-source budgeting app built with Flutter.

web-bomberman — multiplayer Bomberman written in Go.

Tech I reach for

Kotlin · Spring Boot · PostgreSQL · Angular · TypeScript · Flutter · Docker

Around the web

Pinned Loading

  1. OpenBudget OpenBudget Public

    Open source, local storage only budgeting app

    Dart 5

  2. Gperez88/input_calculator Gperez88/input_calculator Public

    With Input Calculator widget you can add functionality of calculation to a TextField.

    Dart 6 3

  3. ghostfolio/ghostfolio ghostfolio/ghostfolio Public

    Open Source Wealth Management Software. Angular + NestJS + Prisma + Nx + TypeScript 🤍

    TypeScript 8.7k 1.2k

  4. coffer coffer Public

    Self-hosted coin collection manager with real-time precious metal valuations, portfolio analytics, and Numista catalog integration.

    Kotlin 2

  5. etsy-manager etsy-manager Public archive

    Etsy Manager — one-click bulk shipping for an Etsy seller (Spring Boot + Kotlin backend, Angular 17 frontend, DHL Versenden integration). Archived public mirror.

    Kotlin

  6. quizolai quizolai Public archive

    Quizolai — a database and public API for German quiz questions (Spring Boot + Kotlin backend, Angular 17 frontend). Archived public mirror.

    Kotlin