About me
I'm a freelance full-stack developer with a focus on web and mobile native. I have worked extensively on high-fidelity web and native Android apps, some of which have been featured on the Play Store front page. My background is in real-time data, finance, IoT and team building. I am also the founder of the IoT startup Om7Sense.
Experience
February 2019 - October 2019

I helped do a security review and integration of a security and encryption SDK for banking apps for the Android platform.

Technologies

AndroidJavaCAndroid NDKApplication securitySecurity
December 2018 - December 2018

Microsoft contracted me as an expert Android developer consultant for one of their partners to participate in a technical due diligence. I investigated the used tech and architecture of an app.

Technologies

AndroidScrum
May 2016 - March 2019

I have held a consulting role at BörseGo as an external mobile developer for many years. I helped onboard new team members, maintain quality and worked on major migrations and tech stack changes (migration to Kotlin) and with research projects (embedding current v8 JS engine).

Technologies

AndroidScrumJavaC++Android NDKOpenGL ESKotlin
August 2015 - Currently

I am the co-founder of Om7Sense, an energy management startup. I designed the architecture and laid out the principal back and front-end applications.

Technologies

ReactSQLJavaMQTTIoT ProtocolsSocket.IOWebSocketsMavenECMAScript (ES6)
February 2015 - August 2015

Working with product owners, UX research and designers on mobile apps. Researching data sources to rank search results on mobile. Rapidly implement and prototype mobile apps with a focus on hybrid of native and web technologies. Teaching courses and mentoring.

Technologies

AndroidJavaScriptJava
November 2011 - November 2014

I was principal developer and designer for Godmode Anywhere and main developer of Guidants Mobile. I also worked on a plethora of web projects and backend projects, mainly concerning the real-time derivative search engine and our own blogging backend.

Technologies

AndroidPHPJavaScriptMySQLJavaC++Android NDKOpenGL ES
August 2009 - November 2011

I worked as a back-end developer on in-house PHP / MySQL projects. On the front-end side I developped interactive stock information web sites (HTML / JS) and maintained and extended a Django eCommerce solution.

Technologies

PHPJavaScriptMySQLPythonDjangoHTML
January 2005 - July 2006

wizAI is a spin-off of the working group "Artificial Intelligence"​ of the University of Koblenz. Here I worked on their semantic web-based news clipping agent "wizScreen", where I did software and database development. Technologies used included Lucene and Java EE

Technologies

MySQLLuceneJava EE
August 1998 - May 2002

System administration of web servers, DB, mail. Interconnection set up of routing for ISP. PHP development.

Technologies

PHPMySQLLinuxTCP/IPApache
Education
August 2004 - October 2011
Master of Computational visualistics (Computer Science)
University of Koblenz-Landau, Germany