Stephan Schulz

Freiberuflich, Senior iOS Developer, Stephan Schulz

Berlin, Germany


Functional Programming
iPhone / iPad App
Continuous Integration
Unit Testing


Professional experience for Stephan Schulz

  • Current 12 years and 10 months, since 2011

    Senior iOS Developer

    Stephan Schulz

    Freelance Software Engineer with strong focus on Architecture and UX

  • Current 19 years and 10 months, since 2004



    Lead development of two cocos2D based arcade platformer for iPod, iPhone and iPad written in Objective-C and C++. Intense use of OpenGL shaders and game programming techniques. Featured by Apple.

  • 4 months, Sep 2019 - Dec 2019

    Senior iOS Developer

    iconmobile GmbH

    The Salonlab Smart Analyzer is the first device, that allows hairdressers to scan the hair structure of their clients through near infrared technology. The device communicates via Bluetooth with an iPad app, that visualizes the scan process and result. My task was to support the iOS team to finish the application in time. The focus was on quickly adapting the existing architecture and infrastructure to implement new features, reviewing merge requests and to optimize the application.

  • 2 months, Jul 2019 - Aug 2019

    Senior iOS Developer

    Spot9 GmbH

    Lead development of the architecture and CI infrastructure for a large scale banking application. The goal was to build the foundation for an upcoming banking application, that offers traditional banking features, such like managing accounts or executing transactions and also serves as a wallet for digital currencies. Beside of the development of the app, my responsibility was also to setup the continuous integration and delivery process, as well as the documentation of all parts of the project.

  • 3 months, May 2019 - Jul 2019

    Senior iOS Developer

    successyou GmbH

    Stability and performance updates for a legacy application. The focus was on the analysis of logs and crash reports in order to make the app compatible and stable with the latest iOS version again. Intense use of a variety of profiling instruments for finding memory and thread related bugs.

  • 3 months, Dec 2018 - Feb 2019

    Senior iOS Developer

    Interactive Pioneers GmbH

    Development of several new features for a road based recommen- dation app. Focus was on the implementation of a map, that uses clustering for displaying huge amounts of data and the integration of community fea- tures within the user profile.

  • 5 months, Jul 2018 - Nov 2018

    Senior iOS Developer

    OSK Berlin

    Lead development of two augmented reality applications that use ARKit 2 for the 3d object detection of an exhibit. The first app is a white-label so- lution for scanning physical objects and for managing / exporting / testing the finis- hed scans. The second, branded, application is able to import these scans and to detect a physical object based on a scan in order visualize corresponding 3d models using augmented reality.

  • 1 year and 7 months, May 2017 - Nov 2018

    Senior iOS Developer

    OSK Berlin

    Lead development of a new Daimler AG iOS application that offers first hand access to company specific news and media files as well as a personalized access to product presentations and drive events. The challenge of the long term project was to create an application, that conforms to the compliance guidelines of the company in terms of legal and security issues as well as serving as the technical lead for the mobile team.

  • 2 months, May 2017 - Jun 2017

    Senior iOS Developer

    Hybrid Heroes GmbH

    Lead Development of a Cordova iOS Camera Plugin, that was able to capture, browse and share pictures or short videos.

  • 4 months, Jan 2017 - Apr 2017

    Senior iOS Developer

    wycomco GmbH

    Lead Development of a safety / mobility prototype for Daimler AG.

  • 4 months, Jul 2016 - Oct 2016

    Senior iOS Developer

    Computer Futures, ein Geschäftszweig von SThree

    Development of a shopping app with similar features to Instagram (Stream, Camera, Profile) in Swift. The chosen architecture was MVVM with Data Binding and Coordinator pattern. Continuous Integration with Travis. UI testing with Google’s Earl Grey.

  • 4 months, Apr 2016 - Jul 2016

    Senior iOS Developer

    AgProp GmbH

    Lead development of a music streaming app similar to Spotify in Swift. Special focus was on offline caching and AVFoundation for a seamless listening experience.

  • 3 months, Nov 2015 - Jan 2016

    Senior iOS Developer

    GHM Mobile Development GmbH

    Development of several new features connected to MapKit and improvement of architectural aspects of the carsharing app. Intense use of agile practices like pair programming, timeboxing, scrum or code reviews.

  • 5 months, Jun 2015 - Oct 2015

    Senior iOS Developer

    Titel Media GmbH

    Lead development of the What Drops Now iPhone and iPad app for curated lifestyle shopping in Swift. Similar to Canopy. Intense use of PureMVC. Continuous Integration with Travis. UI testing with Google’s Earl Grey.

  • 3 months, Feb 2015 - Apr 2015

    Senior iOS Developer

    iconmobile GmbH

    Lead development of an interactive, Bluetooth toothbrush / face tracking controlled macOS app running on a smart mirror. Shown on the Mobile World Congress 2015 and featured in

  • 4 months, Oct 2014 - Jan 2015

    iOS Developer

    9elements GmbH

    Development of interactive parts of the ARAG consultation app for iPad. Animation and visualization of different insurance themes. Integration in a version control friendly state machine architecture.

  • 10 years and 1 month, Jan 2005 - Jan 2015

    Senior Flash Developer


    Lead development of various touchscreen applications for trade shows like CeBIT and IFA for Deutsche Telekom including a backbone.js driven HTML5 app available on the App Store. Intense use of Adobe AIR for cross platform presentations.

  • 4 months, Jul 2014 - Oct 2014

    iOS Developer

    Spark Networks SE

    Lead development of the multilingual / dating app for iPhone. Focus was on architecture and creating a skinnable, multilingual application which can be used in different styles and under different names in different countries.

  • 7 months, Dec 2013 - Jun 2014

    iOS Developer

    MoreSleep GmbH

    Lead Development of an cocos3D / UIKit based iPad app with a detailed realtime 3D experience of the new micro-architectural office system „Workbays“. The app contains 24 different POD models which can be rotated, zoomed and configured.

  • 9 months, Oct 2013 - Jun 2014

    iOS Developer

    MoreSleep GmbH

    Lead development of a multilingual, WordPress based magazine about architecture for iOS and Android. Focus was on building a complete environment, which allows the client to create a magazine which can be easily distributed on iOS, Android and shared in Web.

Educational background for Stephan Schulz

  • ------


  • German

    First language

  • English



Interessante Projekte



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