ClickUp acquired Closer and I’m now part of the product leadership team.

Early startup investor in things I understand and ideally use.- Amplitude Analytics, IPO- D2IQ, ex mesosphere- Interviewing.io- Waldo.io- Flux.ai- AirGarage- WorkWhile

Closer brings the best from in-office collaboration and communication to remote work.

I'm a co-founder, CTO and member of the board of Keepsafe. We solve people’s day to day privacy problems. Today Keepsafe is a strong independent and profitable consumer SaaS company with over 75m users.Contributions/Responsibilities:- Head of product for Photos on and off- Head of security- Build and lead engineering team up to 15 people in San Francisco, Berlin (DE) and Krakow (PL)- Build internal tools team to streamline business process for max efficiency - Developed mobile A/B testing framework Switchboard- Contributor to the Photos iOS - Core contributor of initial Photos Android app up to 10m users and Keepsafe SMS- Raised Venture Capital from tier 1 Silicon Valley VC firms with my co-founder

I led the product and engineering team at the #1 crowd funding marketplace for mobile app developers. The projects I've worked on:- Led complete rebuild of appbackr.com mobile crown funding marketplace in PHP, MySQL and the application framework Yii with an engineering team of 5.- Led development of Xchange appscore, a scoring algorithm to determine app quality based on various data sets. http://www.appbackr.com - Led product and engineering of appbackr Xchange, a platform to identify up and coming apps before they reach the top of the charts. http://www.appbackr.com/socialxchange.html

I founded first online video-shopping startup, driven by the vision to combine the existing world of online video and e-commerce. Video-Shopping allows to purchase products as seen in videos without having to leave the player environment. It delivers a seamless navigation between video content and products that can be embedded everywhere in the web.I developed the core technology to connect existing online shops and online video player technology. Besides building the product, I lead sales and made and closed large fashion retailers personally. ViCommerce was bootstrapped and never took outside funding.

Worked as an Engineer at the EADS Deutschland GmbH in the Corporate Research Centre. Final BA thesis topic: Visualizing data dependencies in a system engineering process.I developed and implemented a self balancing graph layouting algorithm to visualize a systems engineering processes (http://en.wikipedia.org/wiki/Systems_engineering). This allowed management to identify dependencies and reduce overhead. The application was developed on the Eclipse Rich client Platform as an internal tool.

Web front and back end development (Java) in Sydney, Australia.Developed internet tools and web applications based on Java and MSSQL and LDAP.

Software engineer in the automotive space. I was part of an early voice recognition project for hands free control while driving. I developed internal tools for change management. All tools were developed in Java.