• Develop backend services, API's and infrastructure tools based on PHP, Java/Spring Boot and Go
• Maintain the completely self managed infrastructure components like Percona Server for MySQL, ElasticSearch etc. using puppet und ansible
• Setup infrastructure/application monitoring using telegraf, InfluxDB and grafana

• Develop a service oriented architecture for the backend of the Onefootball app
• Recruit and lead the backend team (including DevOps)
• Act as a hands on software architect implementing micro services and backend components using Go

• Backend feature development for the Onefootball app (formerly known as iLiga / THE Football App)
• Migrate the monolythic legacy PHP application to a service based on Symfony2
• Migrate the PHP backend application from bare metal to AWS

• Development of a REST API based on Symfony2 for the biggest german social network (studiVZ, schuelerVZ and meinVZ)
• Frontend feature development based on Google Web Toolkit
• Service and maintenance of the Jenkins CI server

• Build a REST API based on Symfony2 on top of the existing monolythic PHP application
• Develop features for the support system of the social network

• Quality Assurance Developer in the engineering department
• Develop automated acceptance tests for studiVZ, schuelerVZ and meinVZ
• Service and maintenance of the Bamboo CI server

• Development of an internet based ticketing solution built on Linux, Apache, MySQL and PHP with several webservice interfaces
• Administration and configuration of ticketing servers with focus on load balancing, system stability and continuous performance
• Setup and run ticket shops for clubs like Borussia Dortmund, Hamburger SV, Hertha BSC and municipal organisations in Vienna, Munich etc.

• Java development for customer projects
• Development of an IP traffic invoicing service
• Administration of linux servers

Thesis: Associative text analysis system to verify brand positioning concepts
Java program for the text analysis, graphical presentation system for the Heinz Nixdorf Museums Forum based on Java applets and servlets

  PHP

  Go / Golang

  Java

  Javascript

  MySQL

  MongoDB

  Redis

  Nginx

  Memcache

  RabbitMQ

  ansible

  puppet

  chef

  AWS

  Continuous Integration & Continuous Delivery