I specialize in developing applications for iOS, iPadOS, macOS, tvOS, watchOS, and visionOS, with over a decade of experience in the field
Aktualisiert am 06.03.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.04.2025
Verfügbar zu: 100%
davon vor Ort: 100%
UIKit
SwiftUI
Softwarearchitektur
Objective-C
SWIFT
German
Muttersprache
English
Fluent

Einsatzorte

Einsatzorte

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

Projekte

Projekte

9 months
2024-06 - now

Developed new features for ROADS by Porsche

Freelance Senior iOS Developer Swift SwiftUI UIKit ...
Freelance Senior iOS Developer
  • Maintained existing features

Swift SwiftUI UIKit Jira CarPlay and Architecture
Interactive Pioneers, Aachen.
4 months
2024-01 - 2024-04

Set up internal company processes for in-house app development

Freelance Senior iOS Developer / Consultant Swift SwiftUI UIKit ...
Freelance Senior iOS Developer / Consultant
  • Designed and implemented a strategy for subscription-based apps
  • Architecture planning with scaling in mind
  • Identification of requirements and software engineering

Swift SwiftUI UIKit Xcode Cloud Jira GraphQL Strategy Architecture
Burda, Munich
2 years 11 months
2021-02 - 2023-12

Optimized ad distribution with a focus on performance

Freelance Senior iOS Developer SwiftUI UIKit Swift ...
Freelance Senior iOS Developer
  • Implementation of subscription shop features
  • Boosted interstitial ad and subscription revenue
  • Revamped app launch architecture
SwiftUI UIKit Swift Objective-C StoreKit Combine Subscriptions Advertisements Jira Instruments Reverse Engineering
Chefkoch GmbH, Cologne, Germany
1 year 2 months
2021-08 - 2022-09

Developed a user privilege structure in App Store Connect

Freelance iOS Consultant AppStore Connect App Tracking Transparency.
Freelance iOS Consultant
  • AppStore Review support with ATT

AppStore Connect App Tracking Transparency.
SIGNAL IDUNA a.G., Dortmund, Germany
2 years
2019-08 - 2021-07

Conception and implementation of a health tracking app

Freelance Senior iOS Developer Swift SwiftUI UIKit ...
Freelance Senior iOS Developer
  • Maintained app of Axa insurance implemented native features in a web view based experience
  • Conception and implementation of a health tracking app

Swift SwiftUI UIKit Network Analysis Mac Catalyst Architecture
COPAtec GmbH, Cologne, Germany.
2 years 5 months
2018-09 - 2021-01

Maintenance and feature development for Eurowings airline

Senior iOS Developer Swift Objective-C Jira ...
Senior iOS Developer
  • Converted web-based features to native features and reengineered the app navigation
  • Led the team and architected the implementation of a customer selfservice flow for refunds and cancellations
Swift Objective-C Jira UIKit CoreData Instruments Architecture Team-lead CI/CD.
Cyber:con GmbH, Cologne, Germany
2 years 2 months
2016-07 - 2018-08

Collaborated with UI/UX designers to develop platform-specific features

iOS Developer Swift Objective-C UIKit ...
iOS Developer
  • Built Roads by Porsche and pARcel from ground up
  • Enhanced features in existing projects such as iM Football and CHIO Aachen

Swift Objective-C UIKit Jira CoreData CI/CD CarPlay Mapbox ARKit
Interactive Pioneers GmbH, Aachen, Germany

Aus- und Weiterbildung

Aus- und Weiterbildung

2013 - 2016

Software Engineering Apprentice

Deutsche Telekom AG, Aachen, Germany.


Focus:

  • Built custom tools for in house deployment
  • Optimized performance of existing tools
  • Skills: Unix, Dtrace, Java, HTML, CSS, and JSP.

2013 - 2016
Technical College at Berufskolleg für Wirtschaft und Verwaltung der Städte Region Aachen, Germany.


Focus:

  • Data Structures and Algorithms
  • Software Architecture
  • Project Management
  • Skills: Java, C++, Objective-C, HTML, and CSS

Kompetenzen

Kompetenzen

Top-Skills

UIKit SwiftUI Softwarearchitektur Objective-C SWIFT

Aufgabenbereiche

Profile
I have been developing for Apple systems for over 8 years, starting with my own macOS apps alongside a software engineering apprenticeship. While building a plethora of projects grants me access to a useful knowledge pool, I have also experience with maintaining a project. Since February 2021, I have been working as a freelance senior iOS developer and consultant, consistently delivering satisfaction to my clients. My strength lies in quickly understanding and adapting to various setups. 

Einsatzorte

Einsatzorte

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

Projekte

Projekte

9 months
2024-06 - now

Developed new features for ROADS by Porsche

Freelance Senior iOS Developer Swift SwiftUI UIKit ...
Freelance Senior iOS Developer
  • Maintained existing features

Swift SwiftUI UIKit Jira CarPlay and Architecture
Interactive Pioneers, Aachen.
4 months
2024-01 - 2024-04

Set up internal company processes for in-house app development

Freelance Senior iOS Developer / Consultant Swift SwiftUI UIKit ...
Freelance Senior iOS Developer / Consultant
  • Designed and implemented a strategy for subscription-based apps
  • Architecture planning with scaling in mind
  • Identification of requirements and software engineering

Swift SwiftUI UIKit Xcode Cloud Jira GraphQL Strategy Architecture
Burda, Munich
2 years 11 months
2021-02 - 2023-12

Optimized ad distribution with a focus on performance

Freelance Senior iOS Developer SwiftUI UIKit Swift ...
Freelance Senior iOS Developer
  • Implementation of subscription shop features
  • Boosted interstitial ad and subscription revenue
  • Revamped app launch architecture
SwiftUI UIKit Swift Objective-C StoreKit Combine Subscriptions Advertisements Jira Instruments Reverse Engineering
Chefkoch GmbH, Cologne, Germany
1 year 2 months
2021-08 - 2022-09

Developed a user privilege structure in App Store Connect

Freelance iOS Consultant AppStore Connect App Tracking Transparency.
Freelance iOS Consultant
  • AppStore Review support with ATT

AppStore Connect App Tracking Transparency.
SIGNAL IDUNA a.G., Dortmund, Germany
2 years
2019-08 - 2021-07

Conception and implementation of a health tracking app

Freelance Senior iOS Developer Swift SwiftUI UIKit ...
Freelance Senior iOS Developer
  • Maintained app of Axa insurance implemented native features in a web view based experience
  • Conception and implementation of a health tracking app

Swift SwiftUI UIKit Network Analysis Mac Catalyst Architecture
COPAtec GmbH, Cologne, Germany.
2 years 5 months
2018-09 - 2021-01

Maintenance and feature development for Eurowings airline

Senior iOS Developer Swift Objective-C Jira ...
Senior iOS Developer
  • Converted web-based features to native features and reengineered the app navigation
  • Led the team and architected the implementation of a customer selfservice flow for refunds and cancellations
Swift Objective-C Jira UIKit CoreData Instruments Architecture Team-lead CI/CD.
Cyber:con GmbH, Cologne, Germany
2 years 2 months
2016-07 - 2018-08

Collaborated with UI/UX designers to develop platform-specific features

iOS Developer Swift Objective-C UIKit ...
iOS Developer
  • Built Roads by Porsche and pARcel from ground up
  • Enhanced features in existing projects such as iM Football and CHIO Aachen

Swift Objective-C UIKit Jira CoreData CI/CD CarPlay Mapbox ARKit
Interactive Pioneers GmbH, Aachen, Germany

Aus- und Weiterbildung

Aus- und Weiterbildung

2013 - 2016

Software Engineering Apprentice

Deutsche Telekom AG, Aachen, Germany.


Focus:

  • Built custom tools for in house deployment
  • Optimized performance of existing tools
  • Skills: Unix, Dtrace, Java, HTML, CSS, and JSP.

2013 - 2016
Technical College at Berufskolleg für Wirtschaft und Verwaltung der Städte Region Aachen, Germany.


Focus:

  • Data Structures and Algorithms
  • Software Architecture
  • Project Management
  • Skills: Java, C++, Objective-C, HTML, and CSS

Kompetenzen

Kompetenzen

Top-Skills

UIKit SwiftUI Softwarearchitektur Objective-C SWIFT

Aufgabenbereiche

Profile
I have been developing for Apple systems for over 8 years, starting with my own macOS apps alongside a software engineering apprenticeship. While building a plethora of projects grants me access to a useful knowledge pool, I have also experience with maintaining a project. Since February 2021, I have been working as a freelance senior iOS developer and consultant, consistently delivering satisfaction to my clients. My strength lies in quickly understanding and adapting to various setups. 

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Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

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