Projects / Experience

Portfolio

Experience across industries

Smart home, defence, logistics, healthcare, financial services, payments and telecommunications: explore projects I contributed to as a developer, senior engineer or mobile lead – from connected dashboards and mobile operational tools to patient apps.

9 of 9 projects

02 / Defence / Military07/2023 – 04/2026

Rheinmetall Electronics

From UWP to .NET MAUI

Consultant / Software Engineer

Updating multiple projects and migrating from UWP to .NET MAUI for Windows and Android, including service communication and integration of connected services and third-party hardware.

  • .NET MAUI
  • UWP
  • WinUI 3
  • Windows
  • Android
03 / Healthcare08/2018 – 05/2023

Biotronik

Patient application for iOS and Android

Consultant / Senior Mobile Developer

Development and modernization of a patient application for iOS and Android. Migration of the Xamarin.Forms codebase to .NET MAUI, supported by automated tests covering each user story.

  • .NET MAUI
  • MVVM
  • NUnit
  • Appium
  • Azure DevOps
  • Couchbase
  • Keycloak
04 / Logistics2020 – 2021

DHL IT Services

Mobile tools for daily operations

Senior Mobile Developer

Mobile applications for recording journeys, reporting accidents and defects, and reading receipts on Zebra Android devices, alongside MAUI prototyping.

  • Xamarin.Forms
  • MVVM
  • Redux
  • Android / Zebra
  • MAUI prototyping
05 / Healthcare05/2017

DAK

Service app for insured members

Mobile Lead Developer

Development of a mobile messaging and service portal for DAK members on iOS and Android.

  • Xamarin.Forms
  • iOS
  • Android
  • MVVM
  • ADFS
  • Kobil
  • NUnit
06 / Finance10/2015 – 05/2016

Union Investment

Digital leave approvals

Mobile Lead Developer

Digital leave approvals for iOS and Windows 10 Mobile, integrating SAP and MobileIron with certificate authentication.

  • iOS
  • Windows 10 Mobile
  • SAP
  • MobileIron
07 / Finance03/2015 – 08/2015

Payleven / SumUp

Card payments on Windows

Mobile Developer

A Windows app for card payments with Miura devices over Bluetooth, including porting a C++ payment library from Unix to Windows.

  • Windows
  • C++
  • Bluetooth
  • Miura
08 / Retail01/2013 – 08/2013

Vodafone

Digital workflows in the flagship store

Mobile Developer

A Windows tablet app for queues, digital contracts and offers in the Vodafone flagship store.

  • C# / .NET
  • Windows
  • XMPP
  • SQLite
09 / Healthcare06/2012 – 12/2012

Thieme Compliance

E-Consent Pro on Windows

Mobile Developer

Porting E-Consent Pro for patient questionnaires from iOS to Windows, with a custom protocol for transferring and displaying a backend-driven user interface.

  • iOS
  • Windows

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