I

IONOS

Linux System Administrator - Defense Products

Security Operations & Incident ResponseConfirmed live in the last 24 hours
Full-timeKarlsruhe, GermanyNo salary listed

About the Job

Requirements

  • Have 3–5 years of professional experience operating large platform infrastructures.
  • Have expert-level knowledge of Linux, including Debian or CentOS.
  • Have expert-level knowledge of Nginx, including reverse proxy or web application firewall use.
  • Communicate fluently in English.

Responsibilities

  • Administer and optimize complex Linux-based proxy and defense infrastructures.
  • Analyze DDoS attack patterns and implement countermeasures before outages occur.
  • Use artificial intelligence for log analysis and pattern detection, and implement new mitigation ideas with the team.
  • Contribute to the operating architecture in an agile DevOps environment and continuously evolve the defense systems.
  • Participate in on-call duty for one week per month and intervene as a primary defender to prevent major outages.

Desired Qualifications

  • Knowledge of networking concepts such as BGP, Flowspec, and Anycast.
  • Use automation tools such as Ansible, Puppet, or Python.
  • German language skills.

About the Company

Company size
1,001-5,000
Company stage
IPO
Headquarters
Montabaur, Germany
Founded
1988

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