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Benjamin DiegelBD

Benjamin Diegel

Mobile Crossplatform App Developer

€490/day
Berlin, DE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Benjamin

Passionate app developer with a focus on modern cross-platform technologies. I have gained several years of experience in mobile development with C#/.NET and Xamarin and am currently expanding my profile with Flutter. I place great value on clean, well-structured code, performant UIs, and a clear, pragmatic architecture.

I enjoy trying out new technologies and quickly getting to grips with new frameworks and tools. In my free time, I intensively engage with open-source software and self-hosting (e.g., my own services, automations, homelab), which gives me a deep understanding of infrastructure, deployment, and application operation.

My focus is on building practical, maintainable solutions, working closely with clients, and reliably transforming ideas into functioning apps – from prototypes/MVPs to production applications.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Berlin (up to 50km)

Experience

  • future Training
    App Development with Flutter and Dart
    DIGITAL AND IT
    June 2025 - August 2025 (2 months)
    Berlin, Germany
    Fundamentals and advanced app development with Flutter and Dart
    • Object-Oriented Programming
    • Responsive and adaptive design
    • Asynchronous programming
    • Architectural patterns and concepts
    • Data processing
    • Testing
    Technologies:

    Dart, Flutter, Git, VS Code,
    Flutter iOS Android Software Architecture Data Processing
  • Bayoomed
    Software Developer
    PHARMACEUTICALS INDUSTRY
    August 2020 - December 2023 (3 years and 4 months)
    Berlin, Germany
    Cross-platform development of an Android/iOS app for insulin therapy in C#

    • Backend implementation with Xamarin and MvvmCross
    • Native view implementation in XML (Android) and Interface Builder (iOS)
    • Documentation of the detailed design (UML)
    • Agile work in a team with Scrum and Azure DevOps

    Technologies: C#, Xamarin, Mvvm Cross, SQL, Azure DevOps, Git, Scrum,
    Xamarin Android Git iOS C#
  • Fraunhofer Ipk
    Software Developer
    RESEARCH
    April 2019 - January 2020 (9 months)
    Berlin, Germany
    Model-based development of a virtual reality prototype
    • UI implementation in Unity

    • Backend implementation in C#
    • Database integration SQLite

    Technologies: C#, Unity, SQLite, SteamVR,
    C# Databases Back-End development Git Software Architecture

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Education

  • Bachelor of Science in Media Informatics
    Berlin University of Applied Sciences
    2020

Certifications

Skill set

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