Senior Systems Administrator

Job Description

Job Description

Location: Chantilly, VA
Clearance: Active Top Secret required, SCI eligibility preferred
Salary Range: $135,000 – $142,000 (DOE) + Comprehensive Benefits

*Must be a US Citizen

Osprey Talent Solutions is supporting a mission-focused national security partner seeking a Senior Systems Administrator to support secure enterprise infrastructure within a complex government environment. This role supports mission systems operating across multiple classified domains and requires an individual comfortable working in fast-paced, operationally relevant environments.

The selected candidate will be responsible for installing, configuring, and maintaining operating systems, servers, and supporting infrastructure while ensuring reliability, performance, and security across enterprise systems operating in multi-enclave environments.

Key Responsibilities:

• Install, configure, and maintain operating system workstations and servers.
• Perform software installation, upgrades, and patch management for operating systems and supporting applications.
• Monitor system performance and troubleshoot operational issues across infrastructure environments.
• Support system backups, data integrity processes, and recovery operations.
• Maintain infrastructure documentation and configuration records.
• Conduct routine system audits to ensure compliance with security and configuration standards.
• Support infrastructure used for analytical and operational tools.
• Respond to system incidents and assist in maintaining operational uptime.
• Participate in Agile program increment activities supporting mission system delivery.
• Support system hardening, performance optimization, and infrastructure reliability initiatives.

Technical Experience:

• Experience with Windows and Linux operating systems.
• Active Directory administration.
• Virtualization technologies such as VMware, VxRail, or similar platforms.
• System monitoring, performance tuning, and troubleshooting.
• Backup and recovery processes.
• Security patching and system updates.
• Basic scripting experience (PowerShell, Bash, or similar).

Additional experience with the following technologies is beneficial:

• Cloud environments supporting government workloads (AWS GovCloud, SC2S, C2S).
• Containerization platforms such as Docker or Kubernetes.
• Identity management and authentication systems (LDAP, ADFS, Keycloak).
• Enterprise logging or data platform tools such as Elasticsearch or Splunk.
• Automation, configuration management, or DevSecOps tooling.

Qualifications:

• Bachelors degree in Computer Science, Information Technology, or related field (or equivalent experience).
• Approximately 8+ years of systems administration experience.
• Active Top Secret clearance with eligibility for SCI.
• Experience supporting complex enterprise or classified infrastructure environments.
• Experience operating within multi-enclave or highly secure government systems.

Work Environment:

• On-site support in Chantilly, Virginia.
• U.S. citizenship required.
• Ability to support mission systems operating in classified environments.
• Occasional participation in program increment planning or operational support activities.