iOS Entwickler Experte
Aktualisiert am 28.01.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.02.2026
Verfügbar zu: 100%
davon vor Ort: 10%
iOS
Mobile Apps
CICD
Mobile Apps
DevOps
Jenkins
Xcode
Shell-Script
Bitrise
Fastlane
VR
AR
Unity3D
SwiftUI
UIKit
Flutter
Bluetooth
Internet of Things
Englisch
Verhandlungssicher
Deutsch
Muttersprache

Einsatzorte

Einsatzorte

Berlin (+50km)
Deutschland
möglich

Projekte

Projekte

4 Monate
2023-09 - 2023-12

STIHL

iOS Engineer
iOS Engineer
Worked on Bluetooth Connectivity App
2 Monate
2023-08 - 2023-09

KptnCook

iOS Engineer
iOS Engineer
Worked on Database Updates for Recipe-App
10 Monate
2022-05 - 2023-02

Chrono24

iOS Engineer (Senior) iOS SWIFT
iOS Engineer (Senior)
- Developed the Chrono24 iPhone & iPad App
- Worked on the Augmented Reality Watch Scanner
- Introduced new practices which have been quickly adapted across the entire codebase
SWIFT iOS Xcode
iOS SWIFT
Berlin
1 Jahr 4 Monate
2021-05 - 2022-08

OneCode (aka Red Android)

iOS Engineer (Senior) SWIFT Xcode
iOS Engineer (Senior)
Worked as external developer for various projects.

- Worked on internal vehicle-management app for Telekom
- Introduced new linter and quality standards to codebase
- Notably Increased amount of unit-tests

- Integrated Apple Health into the Bosch eBike App
- Improved MapBox features and integration
- Worked in SAFe project structure with 10 other scrum-teams

- Setup CICD Infrastructure for Unu Motors iOS & Android E-Moped Apps from scratch
Swift Combine Fastlane Bitrise Apple HealthKit MapBox Phrase Carthage Swift Package Manager Apple WatchKit BitRise Visual Studio App Center
SWIFT Xcode
OneCode
Berlin
1 Jahr 11 Monate
2019-06 - 2021-04

Oetker Digital

iOS Engineer (Senior) Flutter iOS Swift ...
iOS Engineer (Senior)
- Maintained & developed the Backen.de app for iOS and the Juit App using Flutter
- Reduced deployment and build times by 90%
- Reduced codebase size by 73%
- Maintained & Improved CICD using Bitrise & Fastlane
- Featured on the Apple App Store
Flutter iOS Swift Bitrise
Oetker Digital
Berlin
2 Jahre 2 Monate
2017-04 - 2019-05

IBM iX

iOS & DevOps Engineer
iOS & DevOps Engineer
- Developed apps for Volkswagen, the Techniker Krankenkasse, Adidas, and others
- Created an Augmented Reality App for live floor recognition & replacement
- Maintained & extended the CICD systems using Fastlane, Bitrise and Sonarqube
- Handled & organized solutions to deployment crises across multiple teams
- Developed an UI Testing Development Solution that has been implemented by multiple departments
IBM iX
Berlin
1 Jahr 5 Monate
2015-10 - 2017-02

Promptus

iOS Engineer (Working Student)
iOS Engineer (Working Student)
- Developed the apps Hotel MSSNGR, TUI, Panorama Fashion Fair, and others
- Translated Objective-C codebase to Swift, and worked with Fastlane & Jenkins
Promptus
Berlin

Aus- und Weiterbildung

Aus- und Weiterbildung

4 Jahre
2012-10 - 2016-09

Bachelor in Media & Computer Science, Specialization in iOS Apps & VR

Bachelor of Science, HTW Berlin
Bachelor of Science
HTW Berlin
Studied International Media & Computer-Science a the University of Applied Sciences Berlin. Specialized in iOS Development and Virtual Reality.

- Graduated with Special Award "Best IT-Project of the HTW Berlin 2015-2016"
- First in class by 1 semester to take an internship outside Germany
- Assistant for Professor of Informatics
- Took part in a multitude of hackathons, competitions and events
- Co-organized the Berlin Mini Jam / Hackathon several times
- Speaker at the Play12 Event in Potsdam

Position

Position

Freelance iOS & Flutter Developer with Specialization in Mobile DevOps

Kompetenzen

Kompetenzen

Top-Skills

iOS Mobile Apps CICD Mobile Apps DevOps Jenkins Xcode Shell-Script Bitrise Fastlane VR AR Unity3D SwiftUI UIKit Flutter Bluetooth Internet of Things

Produkte / Standards / Erfahrungen / Methoden

iOS Development
Experte

Profile

  • 9+ years of experience

  • 7 years Swift experience, 30+ developed projects

  • Worked for: IBM, Dr. Oetker, Volkswagen, Telekom, Techniker Krankenkasse, Bosch, Chrono24

  • Award Winning Developer

  • Mobile DevOps and CI/CD Expert

  • Works agile, loves Scrum and focuses on results

  • Highly engaged in the iOS Dev Community

  • Fastlane Open Source Contributor

  • SwiftUI Enthusiast since Day 1

  • Has own iOS Development YouTube Channel (matthias_code)

  • Has own successful app in store (Basketball Standings)


Skills

Development

  • iOS, Swift, SwiftUI, UIKit, DevOps, Fastlane, ShellScript, Flutter, Dart, Bitrise, Jenkins, Unit-Testing, UI-Testing, AR, VR, Healthkit, WidgetKit, WatchOS, Objective-C, GraphQL


Project Management

  • Leadership

  • Agile & Lean Methodology

  • Scrum

  • User Centric Design

  • Rapid Prototyping

  • Kanban

  • Architectural Planning

  • Public Speaking

  • Taking responsibility for own & team members work

Einsatzorte

Einsatzorte

Berlin (+50km)
Deutschland
möglich

Projekte

Projekte

4 Monate
2023-09 - 2023-12

STIHL

iOS Engineer
iOS Engineer
Worked on Bluetooth Connectivity App
2 Monate
2023-08 - 2023-09

KptnCook

iOS Engineer
iOS Engineer
Worked on Database Updates for Recipe-App
10 Monate
2022-05 - 2023-02

Chrono24

iOS Engineer (Senior) iOS SWIFT
iOS Engineer (Senior)
- Developed the Chrono24 iPhone & iPad App
- Worked on the Augmented Reality Watch Scanner
- Introduced new practices which have been quickly adapted across the entire codebase
SWIFT iOS Xcode
iOS SWIFT
Berlin
1 Jahr 4 Monate
2021-05 - 2022-08

OneCode (aka Red Android)

iOS Engineer (Senior) SWIFT Xcode
iOS Engineer (Senior)
Worked as external developer for various projects.

- Worked on internal vehicle-management app for Telekom
- Introduced new linter and quality standards to codebase
- Notably Increased amount of unit-tests

- Integrated Apple Health into the Bosch eBike App
- Improved MapBox features and integration
- Worked in SAFe project structure with 10 other scrum-teams

- Setup CICD Infrastructure for Unu Motors iOS & Android E-Moped Apps from scratch
Swift Combine Fastlane Bitrise Apple HealthKit MapBox Phrase Carthage Swift Package Manager Apple WatchKit BitRise Visual Studio App Center
SWIFT Xcode
OneCode
Berlin
1 Jahr 11 Monate
2019-06 - 2021-04

Oetker Digital

iOS Engineer (Senior) Flutter iOS Swift ...
iOS Engineer (Senior)
- Maintained & developed the Backen.de app for iOS and the Juit App using Flutter
- Reduced deployment and build times by 90%
- Reduced codebase size by 73%
- Maintained & Improved CICD using Bitrise & Fastlane
- Featured on the Apple App Store
Flutter iOS Swift Bitrise
Oetker Digital
Berlin
2 Jahre 2 Monate
2017-04 - 2019-05

IBM iX

iOS & DevOps Engineer
iOS & DevOps Engineer
- Developed apps for Volkswagen, the Techniker Krankenkasse, Adidas, and others
- Created an Augmented Reality App for live floor recognition & replacement
- Maintained & extended the CICD systems using Fastlane, Bitrise and Sonarqube
- Handled & organized solutions to deployment crises across multiple teams
- Developed an UI Testing Development Solution that has been implemented by multiple departments
IBM iX
Berlin
1 Jahr 5 Monate
2015-10 - 2017-02

Promptus

iOS Engineer (Working Student)
iOS Engineer (Working Student)
- Developed the apps Hotel MSSNGR, TUI, Panorama Fashion Fair, and others
- Translated Objective-C codebase to Swift, and worked with Fastlane & Jenkins
Promptus
Berlin

Aus- und Weiterbildung

Aus- und Weiterbildung

4 Jahre
2012-10 - 2016-09

Bachelor in Media & Computer Science, Specialization in iOS Apps & VR

Bachelor of Science, HTW Berlin
Bachelor of Science
HTW Berlin
Studied International Media & Computer-Science a the University of Applied Sciences Berlin. Specialized in iOS Development and Virtual Reality.

- Graduated with Special Award "Best IT-Project of the HTW Berlin 2015-2016"
- First in class by 1 semester to take an internship outside Germany
- Assistant for Professor of Informatics
- Took part in a multitude of hackathons, competitions and events
- Co-organized the Berlin Mini Jam / Hackathon several times
- Speaker at the Play12 Event in Potsdam

Position

Position

Freelance iOS & Flutter Developer with Specialization in Mobile DevOps

Kompetenzen

Kompetenzen

Top-Skills

iOS Mobile Apps CICD Mobile Apps DevOps Jenkins Xcode Shell-Script Bitrise Fastlane VR AR Unity3D SwiftUI UIKit Flutter Bluetooth Internet of Things

Produkte / Standards / Erfahrungen / Methoden

iOS Development
Experte

Profile

  • 9+ years of experience

  • 7 years Swift experience, 30+ developed projects

  • Worked for: IBM, Dr. Oetker, Volkswagen, Telekom, Techniker Krankenkasse, Bosch, Chrono24

  • Award Winning Developer

  • Mobile DevOps and CI/CD Expert

  • Works agile, loves Scrum and focuses on results

  • Highly engaged in the iOS Dev Community

  • Fastlane Open Source Contributor

  • SwiftUI Enthusiast since Day 1

  • Has own iOS Development YouTube Channel (matthias_code)

  • Has own successful app in store (Basketball Standings)


Skills

Development

  • iOS, Swift, SwiftUI, UIKit, DevOps, Fastlane, ShellScript, Flutter, Dart, Bitrise, Jenkins, Unit-Testing, UI-Testing, AR, VR, Healthkit, WidgetKit, WatchOS, Objective-C, GraphQL


Project Management

  • Leadership

  • Agile & Lean Methodology

  • Scrum

  • User Centric Design

  • Rapid Prototyping

  • Kanban

  • Architectural Planning

  • Public Speaking

  • Taking responsibility for own & team members work

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