I

IONOS

Linux System Administrator - Defense Products

Security Operations & Incident ResponseConfirmed live in the last 24 hours
Full-timeNo salary listed

About the Job

Requirements

  • The candidate must have 3–5 years of professional experience operating large platforms.
  • The candidate must have expert knowledge of Linux, including Debian or CentOS, and Nginx, including reverse proxy or web application firewall functions.
  • The candidate should ideally know networking concepts such as BGP, Flowspec, and Anycast.
  • The candidate should use automation tools such as Ansible, Puppet, or Python.
  • The candidate must communicate fluently in English; German is an advantage.

Responsibilities

  • Administer and optimize complex Linux-based proxy and defense infrastructures.
  • Analyze attack patterns and implement countermeasures to mitigate DDoS attacks before outages occur.
  • Use technologies such as AI 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 defense systems.
  • Participate in on-call duty for one week per month and intervene as a primary defender to prevent major outages.

About the Company

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