Linux System Administrator-Senior Level
Listed on 2025-12-21
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IT/Tech
Cybersecurity, Systems Engineer, IT Support, Systems Administrator
3 days ago – Be among the first 25 applicants.
Nightwing provides technically advanced full‑spectrums cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Nightwing’s 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 seeking a highly motivated Systems Administrator to join a mature program in the Sterling, VA location. The qualified Systems Administrator will support a very dynamic program in a world‑class operations facility and must have a broad range of experience supporting mission‑critical networks and computer systems.
CLEARANCE REQUIREMENT: TS/SCI with POLY
Responsibilities- Assist with the design, implementation, and maintenance of an organization’s IT infrastructure, including servers, VMs, networks, and data storage solutions
- Provide advanced technical support and guidance for system‑related issues, ensuring high performance, security, and availability of IT systems
- Coordinate and manage IT projects, including system upgrades and network improvements, ensuring projects are delivered on time
- Implement and monitor cybersecurity measures, ensuring that all IT systems comply with industry regulations and organizational policies
- 5+ years’ experience in troubleshooting complex network problems
- 5+ years’ experience in communicating with customer representatives in a variety of forums, in both written and spoken form, regarding technical subjects
- 5+ years of experience in IT, cybersecurity, and/or network/systems administration
- Proficiency experience with Red Hat Linux (RHEL) workstations and servers, including installation, configuration, administration, and troubleshooting
- Working knowledge of an orchestration and automation tool such as Ansible, Salt, Puppet, Chef, etc.
- Ability to optimize, secure, and manage servers to ensure high availability, performance, and scalability
- Knowledge of advanced features such as virtualization, automation, and patch management with the ability to integrate these systems to support organizational requirements
- Experience with administering and managing user and system accounts on Linux distributions
- Ability to manage serves, workstations, users, identity policies, etc. using FreeIPA
- Hands‑on experience with physical rack installations, troubleshooting, and system integration
- Experience with network troubleshooting and configuration
- Experience with following the Security Technical Implementation Guides (STIGs) or NIST Special Publications, to ensure IT devices are properly configured and secured
- Experienced with hardening systems across various platforms using STIGs to mitigate vulnerabilities and to ensure compliance with cybersecurity requirements
- Strong communication, analytical, and decision‑making skills
- Experience with cybersecurity practices and compliance
- Understanding and willingness to learn configuration and maintain virtual server environments
- Knowledge in device/equipment integration into graphical user interfaces (GUI) for monitoring systems, utilizing various software suites
- Experience with managing and troubleshooting network infrastructure, including switches, routers, and firewalls
- Ability to operate in a high‑speed environment with changing and evolving mission priorities
- Experience with Cisco iOS and NetAPP (or network storage)
- Bachelor’s degree in computer engineering, Software Engineering, System Engineering, Computer Science, or another related field
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.
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