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Nazmus Sakib Shaon

Available to hire

I’m a senior mobile engineer based in Germany with 11 years of production experience building iOS and Android apps.

About

I’m a senior mobile engineer based in Germany with 11 years of production experience building iOS and Android apps. I’ve spent the last four years developing large-scale Flutter applications in Dart with clean architecture, Bloc, and an emphasis on testability—while earlier work strengthened my product engineering foundation through 7 years of production Xamarin development.

I specialize in real-time communication (SignalR, WebRTC), TDD, and building AI-powered workflow automation. Recently I’ve also integrated custom Python AI agents using Claude and Gemini APIs to support engineering and administrative processes, and I enjoy turning Figma designs into pixel-accurate, type-safe UIs—often delivering fully end-to-end releases for remote clients.

  • 11 years' experience
  • Joined September 2026

Languages

  • EnglishFluent
  • GermanIntermediate
  • BengaliFluent

Industry experience

  • Software & Internet
  • Telecommunications
  • Professional Services

More experts in Munich, Germany

Work experience· 6 roles

Freelance Mobile Developer (Flutter) · US-based workforce-management client (fully remote)Feb 2026 – Present · 10 mos

Sole developer for a fully remote cross-platform workforce-management application for iOS/Android. Owned architecture, delivery, and end-to-end release. Implemented PIN-based authentication with session persistence and session expiry, ordering and staffing assignment, and weekly/daily scheduling. Built features like OneSignal push notifications and a time clock suite covering manager clock-in, pending approvals, and shift editing. Released to TestFlight and Google Play using Fastlane in collaboration with a product manager and backend team despite no co-located time.

X Phon e NextGen (Flutter) · C4B Comfor Business GmbHSep 2022 – Present · 4 yrs 3 mos

Senior developer continuing production work on the Flutter application, including ongoing feature delivery, reliability improvements through testing, and collaboration within an agile team.

Work-flow Automation & AI Integration (Python AI agents) · C4B Comfor Business GmbHSep 2021 – Present · 5 yrs 3 mos

Developed custom Python AI agents leveraging Claude and Gemini APIs to automate daily engineering and administrative workflows. Automated Azure DevOps operations including proposing subtasks for user stories/bugs and automating PR code reviews. Integrated with MS Teams monitoring and created scheduled hourly/daily logging workflows to reduce manual effort.

Senior Software Engineer – Mobile · C4B Comfor Business GmbHSep 2021 – Present · 5 yrs 3 mos
Software Engineer – Mobile (Xamarin) · X Phone Connect Mobile (Xamarin) at NEXT Munich GmbHSep 2020 – Sep 2022 · 2 yrs 1 mo
Software Engineer – Mobile (Xamarin) · NEX T Munich GmbHJun 2015 – Aug 2021 · 6 yrs 3 mos

Education

M.Sc. in Informatics · Technical University of Munich (TUM), Germany2012 – 2015
B.Sc. in CS & IT · Islamic University of Technology, Bangladesh2005 – 2009

Certifications and awards

SAFe (POPM) certification2030 – 2026

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