Projects

lille havn. (since 2021)

I’m consulting lille havn. in all the technical aspects of launching and running a successful online store for kids fashion and accessoires.

EDEKA CRM Coupons (since 2021)

I’m designing and building a new custom CRM/coupons solution for EDEKA. My role is something in between of an architect and software engineer.

EDEKA Web Shop (2020)

I was consulting EDEKA in increasing the availability and scalability of the edeka web shop. This involved changes on all levels: architecture, infrastructure and application code.

Otto AWS Migration (2017 - 2019)

I prepared and designed scenarios for otto.de’s migration to Amazon Web Services. I’ve consulted multiple development teams and helped them to get the actual migration done. The main focus of the project was making the development teams even more independent as well as moving operational responsibility into the development teams.

Otto Container Platform (2014 - 2017)

As a tech lead, I was responsible for building a container platform running otto.de based on the open source tools docker, mesos, marathon, chronos and haproxy. The main focus of that platform is enabling the development teams to deploy their applications through all stages, including production, without any interaction with the central operations team. The container platform is running most of the frontend workload of otto.de as well as big data analysis with spark.

Android Apps (since 2010)

I’ve built quite a number of android apps. The most prominent are Call Meter 3G, Call Meter NG, WebSMS, SMSdroid and Pixel Sheep. My apps gathered more than 2 million downloads in Google play. Most of these apps are open source. I abandoned most of the apps because Google Play Policies and GDPR are making things quite difficult to update.

I also built android apps for Groupon, smsflatrate.net and terminbuddy.