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Linux System Administrator - Defense Project

Confidential company · Leipzig · Posted May 14, 2026

Public summary

Seeking an experienced Linux System Administrator to design, deploy, and maintain computing solutions for complex command-and-control systems in a classified defense-related project. The role is full-time on-site in Holon, involving troubleshooting, system integration, and technical documentation across multiple locations. Requires Linux proficiency, Active Directory and virtualization experience, security clearance eligibility, and readiness to work flexible hours and travel.

Responsibilities

Deploy and maintain computing solutions for complex command-and-control systems; troubleshoot customer issues on-site and in laboratories across multiple locations; provide fast and flexible solutions for users in multi-environment development settings; write technical specifications, procedures, and operational documentation; integrate with interfacing systems and platforms; work in a dynamic and heterogeneous production environment; full on-site position with possible non-standard hours and travel.

Qualifications

Minimum 3 years of experience with Linux operating systems; experience managing Microsoft Active Directory and domain environments; understanding of OS processes; basic TCP/IP networking knowledge; experience setting up Domain Controllers and deploying Group Policy Objects; experience installing and managing Microsoft CA digital certificates; virtualization experience including VM creation and network configuration; familiarity with NetApp storage systems is advantageous; ability to work in a team with strong self-learning capabilities; security clearance required or ability to undergo classification process; valid driver's license (Class B / 02); willingness to work non-standard hours and travel domestically and abroad; strong teamwork and interpersonal skills.

Skills

Linux system administration Microsoft Active Directory Domain Controllers (DC) Group Policy Objects (GPO) Digital certificates management Virtualization (VM creation, network config, snapshots) TCP/IP networking basics NetApp storage systems (advantage) Technical documentation writing Troubleshooting Security clearance process Teamwork Interpersonal skills Willingness to travel and work non-standard hours