I'm a senior/staff mobile engineer with 12+ years building and scaling mobile systems (iOS | KMP) - looking for my next challenge
Aktualisiert am 29.07.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 29.07.2026
Verfügbar zu: 100%
davon vor Ort: 100%
iOS
Mobile Apps
Android
OpenCV
SWIFT
Kotlin
Objective-C
Objective-C++
Python
Basho
Automation Basic
C++
Bitrise
CI/CD
agiles Projektmanagement

Einsatzorte

Einsatzorte

Hamburg (+50km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

KMP & Mobile Automation


Tasks:

  • Designed and implemented a custom automation framework to orchestrate simultaneous iOS processes across multiple physical devices, eliminating manual regression testing overhead.


    Skills:

    Python & Kotlin


    Real-Time Computer Vision


    Tasks:

    • Face Expression Transfer: Developed high-performance algorithms for real-time facial tracking and emotive morphing.
    • Object Replacement: Built an open-source macOS tool for real-time object detection and replacement in video streams using illumination-corrected rendering.


    Skills:

    OpenCV & C++


    MyShiftWork


    Role: Solo Developer & Designer


    Tasks:

    • Architected, designed, and launched a localized calendar engine supporting 12+ languages.
    • Managed the full lifecycle from UX wireframing to complex local synchronization logic.

    Kompetenzen

    Kompetenzen

    Top-Skills

    iOS Mobile Apps Android OpenCV SWIFT Kotlin Objective-C Objective-C++ Python Basho Automation Basic C++ Bitrise CI/CD agiles Projektmanagement

    Produkte / Standards / Erfahrungen / Methoden

    SUMMARY

    • Staff-level iOS Engineer with 10+ years of experience building scalable mobile platforms and developer infrastructure. Specialized in modular architectures, SDK development, and Kotlin Multiplatform adoption at scale. 
    • Proven track record of leading cross-team technical initiatives, improving engineering velocity, and shaping mobile architecture for products serving millions of users. 


    SKILLS

    iOS & Mobile

    • Swift
    • Objective-C
    • UIKit
    • SwiftUI
    • Combine
    • Concurrency 


    Architecture

    • Modular Architecture
    • MVVM
    • Coordinator
    • Clean Architecture 


    Kotlin Multiplatform

    • Kotlin
    • Ktor
    • SQLDelight
    • Shared Business Logic
    • Swift Interop 


    Infrastructure

    • CI/CD
    • Build Systems
    • Performance Optimization
    • SDK Development 


    Other

    • Python
    • OpenCV
    • Computer Vision 
    • Technical Liaison for Design Systems (since I was a designer before) 


    TECHNICAL LEADERSHIP

    • Led cross-team architectural initiatives across mobile platforms 
    • Defined best practices for modularization and scalability 
    • Drove alignment between product, design, and engineering


    EXPERIENCE

    06/2022 - PRESENT

    Role: Senior Software Engineer (Staff Track)

    Customer: Careem (An Uber Company), Hamburg


    Tasks:

    • Technical Strategy: Defined and drove the mobile architecture roadmap for the core ride-hailing vertical within Careem?s Everything App, impacting millions of users across MENA. 
    • Modular Architecture & KMP: Led adoption of modularization and explored Kotlin Multiplatform to unify business logic across platforms, reducing feature development time and improving maintainability. 
    • Developer Infrastructure: Re-architected CI/CD pipelines, reducing build times by 32% and increasing deployment frequency across the mobile organization.. 
    • Org-Level Impact: Influenced engineering practices across teams, leading architectural reviews and establishing scalable coding standards. 
    • Mentorship: Mentored engineers into senior roles and contributed to raising the overall technical bar within the organization. 


    05/2021 - 06/2022

    Role: Senior Software Engineer

    Customer: YogaEasy, Hamburg

     

    Tasks:

    • Performance Engineering: Led a complete ground-up revamp of the legacy iOS codebase, resulting in a 60% increase in app performance and a substantial reduction in crash rates. 
    • Product Strategy: Partnered with stakeholders to align technical debt reduction with business growth, ensuring the platform could scale to meet a growing community of practitioners. 


      01/2020 - 04/2021

      Role: Mobile Engineer (SDK) 

      Customer: Smaato, Hamburg


      Tasks:

      • Low-Level Engineering: Developed and maintained the NextGen Ad-Tech SDK, focusing on low-latency execution and minimal binary size footprint. 
      • Cross-Platform Integration: Collaborated with global teams to ensure seamless SDK integration for third-party publishers, managing complex lifecycles and thread-safety in high-concurrency environments. 

         

        04/2017 - 12/2019

        Role: Senior Software Engineer

        Customer: VentureDive, Karachi

         

        Tasks:

          • Consultancy Leadership: Led mobile development for VistaJet, implementing best-practice design patterns (MVVM/Coordinator) to ensure high-availability for premium global aviation services. 


          01/2014 - 03/2017

          Role: Software Engineer

          Customer: Vozye, Karachi


          Tasks:

              • Transitioned from design to iOS engineering, delivering 4 production applications end-to-end, covering architecture, UI/UX, and deployment. 

              Einsatzorte

              Einsatzorte

              Hamburg (+50km)
              Deutschland, Schweiz, Österreich
              möglich

              Projekte

              Projekte

              KMP & Mobile Automation


              Tasks:

              • Designed and implemented a custom automation framework to orchestrate simultaneous iOS processes across multiple physical devices, eliminating manual regression testing overhead.


                Skills:

                Python & Kotlin


                Real-Time Computer Vision


                Tasks:

                • Face Expression Transfer: Developed high-performance algorithms for real-time facial tracking and emotive morphing.
                • Object Replacement: Built an open-source macOS tool for real-time object detection and replacement in video streams using illumination-corrected rendering.


                Skills:

                OpenCV & C++


                MyShiftWork


                Role: Solo Developer & Designer


                Tasks:

                • Architected, designed, and launched a localized calendar engine supporting 12+ languages.
                • Managed the full lifecycle from UX wireframing to complex local synchronization logic.

                Kompetenzen

                Kompetenzen

                Top-Skills

                iOS Mobile Apps Android OpenCV SWIFT Kotlin Objective-C Objective-C++ Python Basho Automation Basic C++ Bitrise CI/CD agiles Projektmanagement

                Produkte / Standards / Erfahrungen / Methoden

                SUMMARY

                • Staff-level iOS Engineer with 10+ years of experience building scalable mobile platforms and developer infrastructure. Specialized in modular architectures, SDK development, and Kotlin Multiplatform adoption at scale. 
                • Proven track record of leading cross-team technical initiatives, improving engineering velocity, and shaping mobile architecture for products serving millions of users. 


                SKILLS

                iOS & Mobile

                • Swift
                • Objective-C
                • UIKit
                • SwiftUI
                • Combine
                • Concurrency 


                Architecture

                • Modular Architecture
                • MVVM
                • Coordinator
                • Clean Architecture 


                Kotlin Multiplatform

                • Kotlin
                • Ktor
                • SQLDelight
                • Shared Business Logic
                • Swift Interop 


                Infrastructure

                • CI/CD
                • Build Systems
                • Performance Optimization
                • SDK Development 


                Other

                • Python
                • OpenCV
                • Computer Vision 
                • Technical Liaison for Design Systems (since I was a designer before) 


                TECHNICAL LEADERSHIP

                • Led cross-team architectural initiatives across mobile platforms 
                • Defined best practices for modularization and scalability 
                • Drove alignment between product, design, and engineering


                EXPERIENCE

                06/2022 - PRESENT

                Role: Senior Software Engineer (Staff Track)

                Customer: Careem (An Uber Company), Hamburg


                Tasks:

                • Technical Strategy: Defined and drove the mobile architecture roadmap for the core ride-hailing vertical within Careem?s Everything App, impacting millions of users across MENA. 
                • Modular Architecture & KMP: Led adoption of modularization and explored Kotlin Multiplatform to unify business logic across platforms, reducing feature development time and improving maintainability. 
                • Developer Infrastructure: Re-architected CI/CD pipelines, reducing build times by 32% and increasing deployment frequency across the mobile organization.. 
                • Org-Level Impact: Influenced engineering practices across teams, leading architectural reviews and establishing scalable coding standards. 
                • Mentorship: Mentored engineers into senior roles and contributed to raising the overall technical bar within the organization. 


                05/2021 - 06/2022

                Role: Senior Software Engineer

                Customer: YogaEasy, Hamburg

                 

                Tasks:

                • Performance Engineering: Led a complete ground-up revamp of the legacy iOS codebase, resulting in a 60% increase in app performance and a substantial reduction in crash rates. 
                • Product Strategy: Partnered with stakeholders to align technical debt reduction with business growth, ensuring the platform could scale to meet a growing community of practitioners. 


                  01/2020 - 04/2021

                  Role: Mobile Engineer (SDK) 

                  Customer: Smaato, Hamburg


                  Tasks:

                  • Low-Level Engineering: Developed and maintained the NextGen Ad-Tech SDK, focusing on low-latency execution and minimal binary size footprint. 
                  • Cross-Platform Integration: Collaborated with global teams to ensure seamless SDK integration for third-party publishers, managing complex lifecycles and thread-safety in high-concurrency environments. 

                     

                    04/2017 - 12/2019

                    Role: Senior Software Engineer

                    Customer: VentureDive, Karachi

                     

                    Tasks:

                      • Consultancy Leadership: Led mobile development for VistaJet, implementing best-practice design patterns (MVVM/Coordinator) to ensure high-availability for premium global aviation services. 


                      01/2014 - 03/2017

                      Role: Software Engineer

                      Customer: Vozye, Karachi


                      Tasks:

                          • Transitioned from design to iOS engineering, delivering 4 production applications end-to-end, covering architecture, UI/UX, and deployment. 

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