Gerald Gmainer
de
Résumé

13 years of software – from time tracking to EV charging.

Product, mobile, web & 3D · Austria

Garsten near Steyr, Austria · remote/hybridGerman · English · JapaneseProduct · app · webOpen to freelance projects

Open PDF (German)
01Since 2013 · 13 years

Experience

10 positions in Austria and Japan – employed, freelance and, since 2024, with my own product.

  1. 04/2026 – today

    8 months

    Product owner · Flutter & web development · UX/UI

    Hakara GmbH

    NeuraCharge – vendor-independent platform for managing and billing EV charging stations

    • Roadmap, backlog and requirements as product owner – together with customers and the team
    • Flutter app (iOS/Android) for EV drivers – live charging sessions and cost overview
    • Angular web portal for operators – stations, users, tariffs and automatic billing
    • UI/UX design for app, portal and website
    • Marketing website neuracharge.com – concept, build and SEO
    FlutterAngularNuxtSEOUX/UI DesignProduct OwnershipScrum
    See the projectneuracharge.com

  2. 06/2024 – 01/2026

    1 year 8 months

    Team lead & software developer

    Objectbay GmbH

    • Backend modernisation for security software
    • Mobile app and admin web for alpine coasters
    • Rules engine and claims management for an insurance group
    • Financial management tool (web & app) with adviser support
    • Internal tools developed further
    Spring BootAngularReactFlutterSupabaseDockerKeycloakScrum
    Coaster project

  3. 03/2024 – 05/2024

    3 months

    Software developer

    Aescudata GmbH

    • Rebuilt the existing AngularJS software on a modern Angular 17 architecture
    • State management with NgRx/RxJS
    AngularJavaSpring BootScrum

  4. 02/2020 – 12/2023

    3 years 11 months

    Senior software developer

    Designium Inc. (Japan)

    • Programming dojos prepared and run
    • 3D configurator for school backpacks
    • AR & VR – experiments with ARKit/ARCore and Unity
    • Apps & admin web for D-Drive and a snow plough service
    • Travel guide app for Aizuwakamatsu
    • Driver assistant for D-Drive
    • Driver app (prototype) generating GTFS-RT feeds
    VueNuxtReactFlutterReact NativeSupabaseAWS AmplifyNode.jsThree.jsPostgreSQLUnityARKit/ARCorePhotoshop
    D-Drive project

  5. 11/2019 – 02/2020

    4 months

    Full-stack developer

    Freelance

    • Membership system for an Upper Austrian ice stock sport association
    • Chip card system for 15,000 members
    • Project ended during development because of the COVID-19 pandemic
    AngularSpring BootBootstrapMySQL

  6. 04/2019 – 07/2019

    4 months

    Unity developer

    NeNe Corp. (Japan)

    • Face tracking in real time on a 3D model
    UnityC#C++

  7. 08/2016 – 11/2018

    2 years 4 months

    Unity developer & 3D artist

    Enova GmbH · Plasser & Theurer

    • Training simulator for tamping machines
    • Mobile game “Tamping Game” (Android/iOS)
    • VR configurator for tamping machines
    UnityC#BlenderPhotoshop

  8. 11/2014 – 11/2015

    1 year 1 month

    Software developer

    Objectbay GmbH

    • New CRM for Raiffeisenbank Salzburg
    • CI/CD and layout owned
    • Time management system for internal use
    AngularJSJSFJavaMySQLJenkinsScrum

  9. 04/2013 – 10/2014

    1 year 7 months

    Software developer

    Case Softwaretechnik GmbH

    • Time tracking systems – development, installation, support and maintenance
    jQueryPythonPostgreSQLLinux

  10. 07/2011 – 03/2013

    1 year 9 months

    Civilian service & interim jobs

    Various employers · Upper Austria

    • Civilian service at Steyr regional hospital (02/2012 – 10/2012)
    • Interim work in production, electrical installation, logistics and machine operation
    • Employers included Biodiesel Enns, VÖST Linz, Agru Bad Hall, BMW Steyr
02Since 2024

Own projects

since 2024

Android · web · iOS soon

MoneyKoi

Own product · Android, web, iOS in progress

Offline-first budget book in German, English and Japanese – a local SQLite database with outbox sync over Supabase, plus a Next.js web app, the website with a blog and an admin dashboard. Concept, design, build and marketing by one person.

  • Receipt scanner on the phone: text recognition with custom parsers for SPAR, BILLA, LIDL and others, the Austrian receipt QR code and an optional on-device AI scan
  • Fast booking by free text (“12 lunch yesterday”), a calculator keypad and eight Android home-screen widgets
  • Budgets, savings goals, loans with repayment plans and recurring bookings – including reports with trends, a heatmap and net worth over time
  • Investment tracking with real returns (XIRR), target mix, and precious metals and crypto at daily prices
  • Shared budget books with roles and invite links; app lock by PIN/biometrics and export as CSV, PDF or ZIP
FlutterSupabaseNext.jsPostgreSQLSentryOffline-First
See the projectWebsiteAndroid
03Steyr

Education

  1. 2004–2011

    7 years

    HTL Steyr · Electronics with computer and control engineering

    Higher technical college (Matura)

04Also

Certificates & more