Profile

I love creating great products and I love to code. I?m currently focussed on React Native with TypeScript and iOS with Swift but I have a general interest and understanding of coding, design and UX combined with an entrepreneurial attitude. My 18 years of work experience and my strong programming skills are the foundation for my creative abilities. I like to work as a programming expert in a team and contributing my knowledge but I also like to work as a generalist. When I work for my own apps I?m also covering the fields of strategy, concept, design, programming and marketing.

Experience

01/2020 - 03/2020: Parental Leave

09/2019 - 12/2019

Customer: Greenhouse Innovation Lab, Gruner+ Jahr

Tasks:

• Working on Balloon (meditation) and Hirschhausen Diät (interval fasting), both react native based apps for iOS and Android platforms.

05/2019 - 08/2019: Parental Leave

11/2018 - 04/2019:

Customer: Greenhouse Innovation Lab, Gruner+ Jahr

Tasks:
Working on Balloon (meditation) and Hirschhausen Diät (interval fasting), both react native based apps for iOS and Android platforms.

06/2018 - 10/2018

Tasks:

• Splittr Android App
• Developing a react native based app for the Android platform.

04/2018 - 05/2018

Tasks:

• CryptoCars Dapp
• Developing a react based decentralized app (ERC-721 Token Sale) for the Ethereum platform.

08/2017 - 06/2018

Kunde: Star Finanz GmbH

Tasks:

• S-Apps, yomo
• Swift development for the number 1 finance app (Apple AppStore) in Germany (S-App) and their upcoming star yomo.

03/2017 - 06/2017

Customer: Acando GmbH, Olympus

Tasks:
Developing a native swift iPad app for a B2B Olympus project.

09/2016 - 07/2017

Tasks:

• Splittr iOS Relaunch
• Transforming Splittr from a paid to a freemium app with new design, new functionality and a new technology (Google Firebase).

09/2015 - 06/2016

Customer: eSailors IT Solutions Ltd., Tipp24

Tasks:

• Developing a native swift app for Tipp24 with thousands of active customers.

02/2015 - 05/2015

Tasks:

• 3 months living and working in San Francisco for inspiration in the tech hotspot of the world.
  I visited companies like Google, Airbnb and worked in a coworking space in San Francisco.

12/2014 - 08/2015

Customer: gladly on request

Tasks:

• A complete relaunch of my most successful app and my first Swift project.

05/2014 - 12/2014

Tasks:

• Jawed Karim (founder of YouTube) and Found Fair Ventures asked me to co found a company focussed on video apps. We pivoted several times but were not succesful.

11/2013 - 05/2014

Customer: WunderCar Mobility Solutions GmbH

Tasks:

• As the first engineer we released the first version of the WunderCar app in the iOS AppStore after only 3 months of work. The company has raised $70M total funding since 2014.

SKILLS
Professional

React Native, Redux, Typescript / JavaScript, Swift, iOS SDKs, Firebase

Worked with

REST APIs, Graph QL, CI / CD, Unit / UI testing, Jenkins, Git, NoSQL, SQL, Processing,C, Arduino, OpenGL

Played with

Decentralized Apps (blockchain), Machine Learning (scikit, TensorFlow)