# Résumé – Gerald Gmainer

> Product owner, UX designer and full-stack developer from Garsten near Steyr, Upper Austria. Flutter apps and web platforms from idea to release. Open to freelance projects.

## Experience

### Product owner · Flutter & web development · UX/UI – Hakara GmbH (04/2026 – today)

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

Stack: Flutter, Angular, Nuxt, SEO, UX/UI Design, Product Ownership, Scrum

### Team lead & software developer – Objectbay GmbH (06/2024 – 01/2026)

- **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

Stack: Spring Boot, Angular, React, Flutter, Supabase, Docker, Keycloak, Scrum

### Software developer – Aescudata GmbH (03/2024 – 05/2024)

- **Rebuilt** the existing AngularJS software on a modern Angular 17 architecture
- **State management** with NgRx/RxJS

Stack: Angular, Java, Spring Boot, Scrum

### Senior software developer – Designium Inc. (Japan) (02/2020 – 12/2023)

- **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

Stack: Vue, Nuxt, React, Flutter, React Native, Supabase, AWS Amplify, Node.js, Three.js, PostgreSQL, Unity, ARKit/ARCore, Photoshop

### Full-stack developer – Freelance (11/2019 – 02/2020)

- **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

Stack: Angular, Spring Boot, Bootstrap, MySQL

### Unity developer – NeNe Corp. (Japan) (04/2019 – 07/2019)

- **Face tracking** in real time on a 3D model

Stack: Unity, C#, C++

### Unity developer & 3D artist – Enova GmbH · Plasser & Theurer (08/2016 – 11/2018)

- **Training simulator** for tamping machines
- **Mobile game** “Tamping Game” (Android/iOS)
- **VR configurator** for tamping machines

Stack: Unity, C#, Blender, Photoshop

### Software developer – Objectbay GmbH (11/2014 – 11/2015)

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

Stack: AngularJS, JSF, Java, MySQL, Jenkins, Scrum

### Software developer – Case Softwaretechnik GmbH (04/2013 – 10/2014)

- **Time tracking systems** – development, installation, support and maintenance

Stack: jQuery, Python, PostgreSQL, Linux

### Civilian service & interim jobs – Various employers · Upper Austria (07/2011 – 03/2013)

- **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

## Own projects

### MoneyKoi – Own product · Android, web, iOS in progress (since 2024)

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

Stack: Flutter, Supabase, Next.js, PostgreSQL, Sentry, Offline-First

- [See the project](https://www.geraldgmainer.com/en/projects/moneykoi)
- [Website](https://www.moneykoi.com)
- [Android](https://play.google.com/store/apps/details?id=com.psyren.moneykoi)

## Education

- HTL Steyr · Electronics with computer and control engineering – Higher technical college (Matura) (2004–2011)

## Certificates & more

- Certified Scrum Master (2024)
- Communication training – Zuhörakademie (Jürgen Melmuka) (2024)
- Driving licence A & B
- Working holiday & work experience in Japan