Senior IT Security Administrator (ALG/Proxy) | Mathematiker (m/w/d)

Landesbetrieb Information und Technik Nordrhein-Westfalen (IT.NRW)

Düsseldorf, Nordrhein-Westfalen, Deutschland
Published May 6, 2026
Full-time
No information

Job Summary

As a Senior IT Security Administrator at IT.NRW, you will play a pivotal role in securing the digital infrastructure of North Rhine-Westphalia. Your daily responsibilities include building, operating, and evolving Application Layer Gateway (ALG) infrastructures on Linux, managing and developing proxy solutions, and automating deployments using Ansible. You will provide 2nd-level support, maintain documentation, and collaborate with various departments to ensure the security of state IT systems according to ISO 27001 and BSI IT-Grundschutz standards. This position is unique because it combines high-level technical security work with a significant societal impact, serving 18 million citizens. You will work in a professional environment that values structured, independent thinking and offers significant flexibility, including up to 80% home office options and a focus on work-life balance.

Required Skills

Education

Completed Bachelor's degree or equivalent in Information Technology, Mathematics, Physics, or a related field; OR certification as an 'Operative Professional' combined with extensive relevant work experience.

Experience

  • Minimum 3 years of practical professional experience in IT.
  • Professional experience in Linux system administration and network operations.
  • Experience in the operation of Proxy and Application Layer Gateway (ALG) solutions.
  • Experience with IT security standards and infrastructure automation.

Languages

German (Fluent)

Additional

  • Successful completion of an extended security clearance (SÜG NRW) is mandatory for this position.