Sr. System Administrator (Linux)

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in the intelligence community, defense, civil, and commercial markets.

Nightwing is supporting a proprietary customer contract. Nightwing is delivering technical support to customer management and providing technical services to enable customer mission accomplishment.

The Senior System Administrator (Linux) will serve as a key member of the EINSTEIN Engineering Team, providing advanced technical support for the deployment, configuration, and sustainment of Red Hat Enterprise Linux (RHEL)-based systems across multiple federal data centers. This position is hands-on and requires expertise in Linux administration, automation, and security hardening. The Senior System Administrator will ensure the availability, integrity, and performance of mission-critical systems. This position may require occasional CONUS travel in support of deployments, upgrades, and system sustainment.

Responsibilities may include, but are not limited to:

• Deploy, configure, and maintain RHEL-based servers
• Manage OS patching, STIG compliance, and performance tuning across production and lab environments
• Configure and maintain virtualization and automation platforms such as KVM, Ansible, and Satellite
• Support identity and access management via FreeIPA, LDAP, and Kerberos
• Troubleshoot hardware, operating system, and network issues across distributed environments
• Collaborate with engineering teams to implement monitoring and alerting solutions
• Develop and maintain system documentation, configuration baselines, and change records in accordance with customer policy
• Support integration testing, site readiness assessments, and post-deployment verification
• Participate in system upgrades, migrations, and modernization efforts across multiple data centers
• Provide escalation support and technical mentoring to junior system administrators
• Adhere to internal standards, policies, and procedures
• Perform other duties as assigned

Qualifications:

• U.S. Citizenship
• Active Secret clearance. Must be able to obtain a TS/SCI clearance
• Must b e able to obtain DHS Suitability
• Minimum 6+ years of systems administration experience
• 4+ years with Red Hat Enterprise Linux (RHEL) systems.
• Strong understanding of Linux networking, storage, system services, and security controls
• Experience with Ansible and Bash Scripting
• Proficiency in virtualization technologies
• Experience performing system hardening and applying DISA STIGs or equivalent compliance baselines
• Familiarity with configuration management, patch management, and system monitoring practices.

Desired Skills:

• Experience supporting Intelligence, DoD, or DHS Customers
• Familiarity with ScienceLogic SL1, Splunk, or Elastic Stack monitoring and alerting.
• Knowledge of FreeIPA, OpenVPN, or Satellite Capsule configuration.
• Experience with AWS EC2, Terraform, or other Infrastructure-as-Code frameworks.
• Exposure to large-scale deployment or data center operations.
• Experience with ServiceNow ticketing and change management workflows a plus.
• Strong written documentation and collaboration skills.

Required Education:

• BS Computer Science, Computer Engineering, Computer Information Systems, OR Computer Systems Engineering. Two years of related work experience may be substituted for each year of degree level education.

Desired Certifications:

• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification preferred.
• ITIL Foundation v4 Certified or willing to complete one year from hire
• DODI 8570.1-M Compliance at IAT Level I

Syndeo:3487

At Nightwing, we value collaboration and teamwork. You'll have the opportunity to work alongside talented individuals who are passionate about what they do. Together, we'll leverage our collective expertise to drive innovation, solve complex problems, and deliver exceptional results for our clients.

Thank you for considering joining us as we embark on this new journey and shape the future of cybersecurity and intelligence together as part of the Nightwing team.

Nightwing is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.