Experience

realworld one

• Germany
• Software Development
• 200 - 300 Employee

• Senior DevOps Engineer

  • Apr 2023 - Present

  Freiburg, Baden-Württemberg, Germany



Quantaleap

• Netherlands
• IT Services and IT Consulting

• Co-Founder & CTO

  • Apr 2022 - Apr 2023



Daimler TSS

• Germany
• IT Services and IT Consulting
• 700 & Above Employee

• DevOps Engineer

  • Jan 2021 - Mar 2022

  Baden-Württemberg, Deutschland As part of an young and dynamic team, I contributed to the development and operations of an internal Container-as-a-Service platform hosting over 800 Kubernetes clusters worldwide, built mainly from open source software with custom components and optimizations. In an enterprise development ecosystem with multiple teams we followed a Scrum-inspired agile development workflow, all DevOps practices ("You build it, you run it") including on-call duty, and fully automated continuous… Show more As part of an young and dynamic team, I contributed to the development and operations of an internal Container-as-a-Service platform hosting over 800 Kubernetes clusters worldwide, built mainly from open source software with custom components and optimizations. In an enterprise development ecosystem with multiple teams we followed a Scrum-inspired agile development workflow, all DevOps practices ("You build it, you run it") including on-call duty, and fully automated continuous integration and deployment. Personally, I mainly programmed in Go, and used a variety of infrastructure-as-code and build tools (Bazel, Helm, Kustomize, Ansible). I architected and coordinated a global-scale monitoring system for the geographically distributed Kubernetes platform based on Prometheus and Thanos. Other personal tasks included a system for automatic remediation of inconsistencies in customer-, billing-, and cluster-data, a web-based console for simple administration of customer clusters, and development and maintenance of various components including billing, log shipping, alerting, and customer-facing and internal APIs. Show less



Technische Universität Berlin

• Germany
• Education Administration Programs
• 700 & Above Employee

• Ph.D. Student and Researcher

  • Jan 2015 - Aug 2020

  Berlin, Deutschland In June 2020, I defended my Ph.D. thesis, entitled "Autonomic Self-healing in Cloud Computing Platforms". At the Distributed and Operating Systems group (formerly Complex and Distributed IT-Systems), I worked on various industrial research projects in the areas of reliable distributed systems, IoT infrastructures, and data processing and analysis. In these projects we worked with large companies from the telecommunications industry. For my thesis, I designed and implemented a… Show more In June 2020, I defended my Ph.D. thesis, entitled "Autonomic Self-healing in Cloud Computing Platforms". At the Distributed and Operating Systems group (formerly Complex and Distributed IT-Systems), I worked on various industrial research projects in the areas of reliable distributed systems, IoT infrastructures, and data processing and analysis. In these projects we worked with large companies from the telecommunications industry. For my thesis, I designed and implemented a self-healing cloud platform that detects behavioral anomalies in virtualized services and automatically initiates counter-measures. The platform is based on OpenStack, Kubernetes, and Ceph, and is deployed with Kolla, Kubespray, Ansible, and Heat. Data collection and data stream processing is implemented in Go, Python, and Java. Unsupervised and semi-supervised machine learning techniques allow the system to continuously learn and improve its decisions - an approach now known as "AIOps". At the university I was also responsible for practical exercises and exams for multiple courses, including "Cloud Computing", "Distributed Systems", and "Operating Complex IT-Systems". I designed the exercises to teach students modern cloud computing technologies and get hands-on experience using public cloud platforms. Show less



Hasso Plattner Institute

• Germany
• Higher Education
• 200 - 300 Employee

• Tutor

  • Mar 2011 - Jul 2014

  Potsdam und Umgebung, Deutschland At the HPI, I worked as a tutor for multiple courses, including "Programming Concepts 2", "Software Technology 2", "Concepts of Parallel Programming", "Dependable Systems". Being a tutor, I mentored students, guided them through their university projects, created and graded practical programming exercises.

• Student Research Assistant

  • Mar 2011 - Mar 2013

  Potsdam, Brandenburg, Deutschland During my time at the Hasso-Plattner Institute I participated in various research projects. At the Software Architecture Group led by Prof. Dr. Robert Hirschfeld, I worked on a Smalltalk-based development tool to visualize, debug and edit the architecture of software modules. I developed an engine for mutation testing. At the Operating Systems and Middleware Group led by Prof. Dr. Andreas Polze I worked on InstantLab, a platform for software and operating system experiments in the… Show more During my time at the Hasso-Plattner Institute I participated in various research projects. At the Software Architecture Group led by Prof. Dr. Robert Hirschfeld, I worked on a Smalltalk-based development tool to visualize, debug and edit the architecture of software modules. I developed an engine for mutation testing. At the Operating Systems and Middleware Group led by Prof. Dr. Andreas Polze I worked on InstantLab, a platform for software and operating system experiments in the browser, using cloud computing technology.



SAP

• Germany
• Software Development
• 700 & Above Employee

• Intern

  • Apr 2013 - Oct 2013

  Palo Alto, CA Created POC systems to analyze big data of online games targeting to increase conversion rate, revenue and reduce churn behavior.

• Student Employee

  • Oct 2012 - Apr 2013

  Berlin und Umgebung, Deutschland Worked with SQL and In-Memory Databases, building proofs-of-concept for analysis of large data.



4flow

• Germany
• Transportation, Logistics, Supply Chain and Storage
• 700 & Above Employee

• Software Developer

  • Jul 2009 - Apr 2011

  Participated in the development of the logistics optimization software 4flow Vista, written in Java.