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Jörn Ehmann

Restore Landscapes with your Smartphone @Ecosia 🌱

Professional Background

Jörn Ehmann is an accomplished mobile app developer with over a decade of extensive experience in iOS and Android application development. His career journey began in 2010 when he delved into creating iPhone applications using Objective-C, coinciding with the release of iOS 3. Since then, Jörn has cultivated a rich skill set and a keen understanding of mobile technologies, leading him to work in various agile environments and contribute significantly to several successful mobile applications. Jörn's experience includes roles as a Team Lead in mobile app development at CHECK24, where he oversaw the development of native apps, fostering collaboration among teams to meet customer needs effectively.

His impressive portfolio includes contributions to seven apps that have made their mark in the German App Store. Notable titles include the CHECK24 Vergleiche App, Teufel Raumfeld Controller, Egym Trainer App, Funanga Cash to Code, Planet Romeo Gay Dating, All You Need Online Supermarket, and Pressmatrix Digital Publishing Solutions. These applications showcase Jörn's proficiency in creating user-centric solutions that stand out in a competitive market.

Education and Achievements

Jörn Ehmann possesses a solid educational background, holding two Bachelor of Science degrees. His academic journey began at the Freie Universität Berlin, where he studied Bioinformatics. He then pursued another Bachelor of Science in International Media and Computer Science at the Hochschule für Technik und Wirtschaft Berlin. This unique blend of education equips him with a broad perspective on both technical and media-related aspects of mobile development.

Throughout his career, Jörn has embraced a philosophy centered around clean, testable, and maintainable code. He emphasizes the importance of high test coverage, automated testing, and continuous integration in the development process. His approach guarantees that projects meet quality standards while also remaining adaptable to changing client requirements. Jörn firmly believes in the necessity of measurable outcomes, stating, "The key to success is measuring. You can hardly improve what you cannot measure." This insight reflects his commitment to maintaining high performance in his work and pushing the boundaries of what is possible in mobile app development.

Notable Expertise

Jörn's technical expertise spans several key technologies in mobile app development. He is highly skilled in Swift and Objective-C, the core programming languages for iOS development. Additionally, his proficiency in tools such as CocoaPods, Git, Jenkins, Bamboo, and XCode allows him to streamline the development process and manage projects efficiently. Jörn's familiarity with Cocoa Touch, UIKit, Foundation, CoreData, CoreLocation, Grand Central Dispatch (GCD), CoreBluetooth, and WatchOS further enhances his ability to create innovative applications that meet diverse user demands.

Organizations

Jörn has contributed significant efforts to various organizations throughout his career, showcasing his versatility and adaptability in different development environments. Currently, he holds the position of Tech Lead Mobile at Ecosia GmbH, demonstrating his leadership capabilities and commitment to driving mobile innovation. Previously, Jörn operated as a Freelance iOS Software Engineer, where he honed his skills and gained insights into the needs of various clients, particularly in the startup and mid-sized company landscapes.

His leadership experience extends back to CHECK24, where he served as Team Lead for Native App Development for both iOS and Android platforms. Jörn's earlier roles include Senior iOS Developer at CHECK24, iOS Software Engineer at SinnerSchrader Swipe GmbH, and First Level Support and iOS Developer at BerlinOnline Stadtportal GmbH & Co. KG. Each of these positions contributed to his deep understanding of mobile app development and client engagement.

Jörn Ehmann continues to exemplify professionalism and creativity in mobile application development, positioning himself as a key player in the technological landscape. His strong educational background, extensive experience, and commitment to quality in code have resulted in many successful apps, thereby solidifying his reputation in the industry.

Related Questions

How did Jörn Ehmann develop his expertise in iOS and Android development over the past decade?
What motivated Jörn Ehmann to pursue dual Bachelor's degrees in Bioinformatics and International Media and Computer Science?
In what ways has Jörn demonstrated leadership capabilities as Tech Lead Mobile at Ecosia GmbH?
What were some key challenges Jörn Ehmann faced during his contributions to the CHECK24 Vergleiche App?
How has Jörn's philosophy of clean and maintainable code influenced his approach to mobile app development?
Jörn Ehmann
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Location

Berlin Metropolitan Area