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Software architect and app builder with over 20 years of experience. I build and run iOS, Android and macOS apps end to end: native Swift and SwiftUI, Flutter for cross platform, Java and Quarkus backends on Kubernetes. Four apps of my own are live in the stores (Sommelio, DokuAI, SnapShots, CivoCloudManager), so I cover the whole path from idea to App Store review to production operations. Before that I spent years building regulatory and banking systems and leading development teams. I work fixed price with full code ownership and clear documentation. Details and references: theapparchitect.com…Software architect and app builder with over 20 years of experience. I build and run iOS, Android and macOS apps end to end: native Swift and SwiftUI, Flutter for cross platform, Java and Quarkus backends on Kubernetes. Four apps of my own are live in the stores (Sommelio, DokuAI, SnapShots, CivoCloudManager), so I cover the whole path from idea to App Store review to production operations. Before that I spent years building regulatory and banking systems and leading development teams. I work fixed price with full code ownership and clear documentation. Details and references: theapparchitect.com

Marcel Berger

App Developer, Back-End Developer, Full Stack Developer, +2

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Software architect and app builder with over 20 years of experience. I build and run iOS, Android and macOS apps end to end: native Swift and SwiftUI, Flutter for cross platform, Java and Quarkus backends on Kubernetes. Four apps of my own are live in the stores (Sommelio, DokuAI, SnapShots, CivoCloudManager), so I cover the whole path from idea to App Store review to production operations. Before that I spent years building regulatory and banking systems and leading development teams. I work fixed price with full code ownership and clear documentation. Details and references: theapparchitect.com…Software architect and app builder with over 20 years of experience. I build and run iOS, Android and macOS apps end to end: native Swift and SwiftUI, Flutter for cross platform, Java and Quarkus backends on Kubernetes. Four apps of my own are live in the stores (Sommelio, DokuAI, SnapShots, CivoCloudManager), so I cover the whole path from idea to App Store review to production operations. Before that I spent years building regulatory and banking systems and leading development teams. I work fixed price with full code ownership and clear documentation. Details and references: theapparchitect.com

Next availability:

October 1, 2026

Frankfurt am Main, Germany

Software architect and app builder with over 20 years of experience. I build and run iOS, Android and macOS apps end to end: native Swift and SwiftUI, Flutter for cross platform, Java and Quarkus backends on Kubernetes. Four apps of my own are live in the stores (Sommelio, DokuAI, SnapShots, CivoCloudManager), so I cover the whole path from idea to App Store review to production operations. Before that I spent years building regulatory and banking systems and leading development teams. I work fixed price with full code ownership and clear documentation. Details and references: theapparchitect.com

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

German

Fluent

English

Advanced

Work Experience

Software Architect & Co-Founder at DigitalFreedom Global LLC

April 1, 2025 - Present

Building and operating our own iOS, Android and macOS apps end to end: Swift and SwiftUI, Flutter, Java and Quarkus microservice backends on Kubernetes, CI/CD with GitHub Actions and ArgoCD GitOps. Published apps: Sommelio, DokuAI, SnapShots, CivoCloudManager.

Founder & Managing Director at 4BrainSolutions GmbH

June 1, 2018 - March 31, 2025

Founded and ran a software consultancy. Technical lead for the DAC6 EU tax reporting module at Union Investment: 30 to 40 Spring Boot microservices on OpenShift, Camunda BPMN, CI/CD. IAM projects with SailPoint IdentityIQ at DZ Bank: provisioning, RBAC, Angular frontends.

Full-Stack Developer at ITinera Projects & Experts

July 1, 2016 - May 31, 2018

Full stack development in the finance and banking sector: Java backends, Angular and TypeScript frontends, REST APIs, event driven architecture. Projects included a real time instant payment system, a bank client chat platform and a credit matching platform.