Senior Linux Administrator

We are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR).

QinetiQ US’s dedicated experts in defense, aerospace, security, and related fields all work together to explore new ways of protecting the American Warfighter, Security Forces, and Allies. Being a part of QinetiQ US means being central to the safety and security of the world around us. Partnering with our customers, we help save lives; reduce risks to society; and maintain the global infrastructure on which we all depend.

Why Join QinetiQ US?

If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems.  In our diverse and inclusive environment, you can be authentic, feel valued, be respected, and realize your full potential. QinetiQ US will support you with workplace flexibility, a commitment to the health and well-being of you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives.

QinetiQ Inc. is seeking an experienced Senior Linux Administrator to manage, maintain, and optimize our Linux-based infrastructure. This role requires deep technical expertise, strong problem-solving skills, and the ability to work in a fast-paced, production-critical environment.

• Design, deploy, and maintain Linux server environments (physical, virtual, and cloud-based)
• Ensure system performance, availability, and security across all environments
• Automate routine tasks using scripting (Bash, Python, or similar)
• Manage system monitoring, logging, and alerting tools
• Perform system upgrades, patching, and vulnerability remediation
• Troubleshoot complex system and application issues
• Collaborate with DevOps, networking, and security teams
• Maintain documentation for systems, processes, and procedures
• Support disaster recovery and backup strategies

• 5+ years of experience administering Linux systems (e.g., RHEL, CentOS, Ubuntu)
• Strong knowledge of system performance tuning and troubleshooting
• Experience with virtualization (VMware, KVM, etc.)
• Implementation of STIG's according to NIST Framework
• Proficiency in scripting (Bash, Python, or similar)
• Familiarity with configuration management tools (Ansible, Puppet, or Chef)
• Experience with monitoring tools (Nagios, Prometheus, Grafana, etc.)
• Solid understanding of networking concepts (TCP/IP, DNS, firewalls)
• Well versed in CyberSecurity hygiene 
• Must be able to obtain and maintain a DOD security clearance if required

• Experience with containerization (Docker, Kubernetes)
• Knowledge of CI/CD pipelines and DevOps practices
• Linux certifications (RHCE, LFCS, or equivalent)
• Experience in high-availability and distributed systems
• Working knowledge of Gitlab or similar applications

Accessibility/Accommodation:

If because of a medical condition or disability you need a reasonable accommodation for any part of the employment process, please send an e-mail to staffing@us.QinetiQ.com or call (540) 658-2720 Opt. 1 and let us know the nature of your request and contact information.

QinetiQ US is an Equal Opportunity employer. All Qualified Applicants will receive equal consideration for employment without regard to race, age, color, religion, creed, sex, sexual orientation, gender identity, national origin, disability, or protected Veteran status.