Experience

Infrastructure Engineer @ Marktplaats / Adevinta Link to heading

marktplaats.nl / 2dehands.be / 2ememain.be

March 2022 - Current (full-time), Amsterdam, Netherlands

  • Maintain and improve infrastructure required to run marktplaats.nl
  • Focus on databases (MySQL, Cassandra, CockroachDB)
  • On-call duties
  • Projects:
    • Migration from on-premise Datacenters to AWS
    • Migration of various legacy monitoring solutions (Prometheus, Alertmanager, Grafana, Thanos, Graphite, Nagios) to DataDog

Linux Systems Engineer @ Shpock Link to heading

shpock.com

January 2020 - December 2021 (part-time), Vienna, Austria

  • Coordinated migration of the Shpock media delivery stack (136 TB, 75M requests/day) from an on-premise solution to GCP, massively reducing cost, maintenance work and complexity, and increasing reliability.
  • Automated provisioning of Openshift Clusters in AWS for ephemeral & idempotent environments
  • On-call duties
  • Technologies:
    • Databases: MongoDB, Elasticsearch, Redis, Memcached
    • Monitoring: Prometheus, Grafana, Sensu, Pagerduty
    • OpenShift
    • Salt Stack (physical Servers)
    • Ansible (OpenShift)
    • Terraform (GCP & AWS)
    • CI/CD: Jenkins, GitLab CI, GitHub Actions

Backend Software Engineer @ Shpock Link to heading

shpock.com

August 2018 - December 2019 (part-time), Vienna, Austria

  • Wrote clean, clear and well-tested code for various projects such as Sign in with Apple
  • Migrated backend cron jobs to a new custom cron scheduler system
  • Updated and cleaned up the push notification delivery stack (Google & Apple APIs, microservices, legacy code, etc.)
  • Implemented changes in our custom ORM (MongoDB, Elasticsearch) for Database Upgrades, PHP packages upgrades, etc.
  • Simplified and improved and CI/CD pipelines by introducing GitLab CI and later GitHub Actions
  • Technologies: PHP, Docker, MongoDB, Elasticsearch, OpenShift, GitLab CI, GitHub Actions

System Administrator @ sattler energie consulting Link to heading

energie-consulting.at

July 2015 - July 2018 (part-time), Gmunden, Austria

  • Workstation Setup, Maintenance, Helpdesk for 28 Users, 8 Printers
  • Microsoft Server 2012 R2 AD, DHCP, DNS, Exchange administration, and backup
  • Kept software licenses current for computers and mobile devices
  • Hosting, maintenance, backup of the company domain and website
  • Powershell scripting to automate small parts of daily work
  • Provided guidance to CEO/owner for all IT-related purchases and decisions

Trainings & Certifications Link to heading