03.03.2026 aktualisiert

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Wir bauen Apps die liefern! Senior Mobile Developer Android/iOS | +12 Jahre Erfahrung

Bad Bramstedt, Deutschland
Deutschland +2
info: Deutschland, Österreich, Schweiz
Master Of Science International Media and Computing
Bad Bramstedt, Deutschland
Deutschland +2
info: Deutschland, Österreich, Schweiz
Master Of Science International Media and Computing

Profilanlagen

CV 2025 Tobias Boehm EN.pdf
CV 2025 Tobias Boehm DE.pdf

Über mich

Über 12 Jahre Erfahrung in der Mobile-Entwicklung. Projekte von Startups bis DAX-Konzernen mit über 10 Millionen Downloads. Mit AppBaumeister haben KMUs Zugriff auf ein Netzwerk aus Senior Mobile-Entwicklern. Wir sehen die versteckten Anforderungen, hören auf Designer und liefern Code, der bleibt.

Skills

AndroidkotlinCoroutinesMVIJetpack ComposeChatGPTClean CodeClean Architecturegen. AIKtor
I’m a senior Android developer with 10+ years of experience creating high-quality native apps. Since recently I can combine that with cutting-edge generative AI integrations. From Kotlin and Jetpack Compose to OpenAI and Flux, I help teams build modern mobile apps that are smart, fast, and future-ready.

Technologies I Excel In
  • Programming Languages & Tools: Kotlin, Java, and more
  • Frameworks & Libraries: Jetpack Compose, Mapbox, Ktor, Coil, OkHttp, Room, Retrofit, Coroutines, RXJava
  • Development Environments: Android Studio, IntelliJ IDEA, VS Code
  • Build & Cloud Tools: Gradle, Jenkins, Firebase, Google Cloud Run, OpenAI, Flux, gen. AI APIs
  • Architectures & Patterns: MVVM, MVI, Clean Code, Clean Architecture
Whether you want to modernize your app, add AI-powered features, or build a full product end to end – from concept + design to deployment – I combine deep technical skills with a passion for clean, future-ready solutions.

Let’s build something remarkable together!


PS: If you are looking for more than one developer from my personal network check out www.appbaumeister.de  :)

Sprachen

DeutschMutterspracheEnglischverhandlungssicher

Projekthistorie

Freelance Senior Android Developer @ IBM

IBM

Internet und Informationstechnologie

>10.000 Mitarbeiter

Together with the existing team for the electronic patient record (ePA), I maintained the Android white-label solution of the ePA v3.0 and v3.0.5 and added new features.

Android, Kotlin, Compose, Coroutines, Kotlin Multiplatform (KMP), MVI, MVVM, Teams, Confluence, Jira

Mobile- & Backend Developer @ MNDXT

Tobias Boehm Softwareentwicklung

Internet und Informationstechnologie

< 10 Mitarbeiter

I design and develop both Android and backend application for AI content generation app “Mind Extension” www.mndxt.app using latest Android technologies (Kotlin, Coroutines, Compose, Dagger Hilt DI, MVI, Mockk) and Google Cloud Platform + GitLab CI infrastructure for my backend (Cloud Run, Docker, Ktor, Koin DI, Detekt, Mockk)

As part of this project, I integrated services such as Google InApp Billing, Cloudinary CDN, OpenAI GPT, StabilityAi Stable Diffusion and Firebase SSO and Storage.

Freelance Senior Android Developer @ blueworld GmbH

blueworld GmbH

Internet und Informationstechnologie

10-50 Mitarbeiter

Together with the existing Android team, I overhauled the Tracemate Android app architecturally and structurally and improved existing processes.
Tools and Skills: Clean Code, Clean Architecture, Coroutines, Kotlin, Model View Intent, SCRUM, Mockk, Slack, Confluence, Jira

Senior Android Developer @ Congstar

Congstar

Telekommunikation

500-1000 Mitarbeiter

Together with the team of Congstar I helped to modularize the main app and introduce code quality controls (think clean architecture and modularization by functionality + ktlint and detekt). All new UI components were implemented with Compose.
Tools and Skills: Kotlin, Dependency Injection, Coroutines, MVI, Retrofit/okhttp, GitLab, AndroidX, Mockk, Espresso, Jetpack Compose, detekt, ktlint, Scrum / Kanban, Confluence, Jira, MS Teams

Senior Android Developer @ RTL

RTL

Medien und Verlage

>10.000 Mitarbeiter


With a team of over 250 people (>40 Android devs on one codebase) I was working on their next generation media streaming solution for RTL. My team was responsible for creating the podcast section of the app. Highlights: Working with a very large team utilizing the SAFe framework in a highly modularized project.

Company Languages: German & English
Tools and Skills: Kotlin, Dagger/Hilt Dependency Injection,  GraphQL, Coroutines, MVVM, Retrofit/okhttp, GitLab, AndroidX, Mockito, Scrum & SAFe, Confluence, Jira, MS Teamsm Jetpack Compose

Senior Android Freelancer @ Immowelt

Immowelt Hamburg GmbH

Internet und Informationstechnologie

500-1000 Mitarbeiter

Together with the existing Android team I have further developed the Immowelt Search App.
Highlight: Designing a polygon draw and erase feature prototype for creating search areas on Google Maps based on the JTS Topology Suite and the Android motion event system.

Mainly remote due to COVID-19

Company Languages: German & English

Tools and Skills: Kotlin, KOIN Dependency Injection, Coroutines, MVVM, DataBinding, Retrofit/okhttp, Gradle Kotlin DSL; Google Maps, AndroidX, Mockito, Robolectric, Scrum, Confluence, Jira, Bitbucket, MS Teams, Slack

Senior Android Developer @ AOK Systems

AOK Systems

Versicherungen

500-1000 Mitarbeiter

Begleitungs des Redesigns der AOK Bonus App. Konzeption und Einführung eines Multi-Modul fähigen Single-Activity Navigationssystems unter Verwendung von MVI, RXJava und Magnet DI.

(Senior) Android Developer @ Komoot

komoot

Internet und Informationstechnologie

10-50 Mitarbeiter

Development of new features and maintenance for the leading outdoor planning navigation app in DACH - 3M downloads, up to 1M active users (depending on the season of the year).

Android Developer @ Semper

UnlockYourBrain GmbH

Internet und Informationstechnologie

10-50 Mitarbeiter

Development of Semper. Semper is a vocabulary trainer app featuring various languages as well as math quizzes using an unique approach by appearing in front of the lockscreen or before apps are started. On its peak the app had several 100k users per month.
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Versichert bis: 01.10.2026

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