Senior Systems Administrator

Primary Responsibilities

• Lead system administration for Linux and Windows-based systems in secure, mission-critical environments.
• Architect and manage complex server, storage, and virtualization infrastructure (VMware, KVM).
• Perform OS installation, configuration, hardening, and patching in compliance with DoD STIGs and agency policies.
• Monitor and tune system performance, conduct root cause analysis, and resolve complex issues quickly and efficiently.
• Support backup/recovery strategies, disaster recovery plans, and continuity of operations.
• Oversee and maintain automation scripts and infrastructure as code (Ansible, PowerShell, Bash, etc.).
• Maintain system documentation, configuration baselines, and support CM and RM activities.
• Lead and support deployment of system enhancements and modernization initiatives for the program.
• Collaborate with cybersecurity, network engineering, and software development teams to ensure system compliance and performance.
• Participate in security audits, incident response, and operational readiness activities.
• Provide Tier 2/3 help desk support, including troubleshooting complex user issues, resolving escalated tickets, and collaborating with the service desk to minimize downtime.

Basic Qualifications

• US citizenship is required per contract.
• Active Top Secret to be considered with the ability to obtain TS/SCI with Polygraph.
• DoD 8570 IAT Level II or III certification (e.g., Security+ CE, CASP+, CISSP).
• Bachelor’s degree in Computer Science, Engineering, Information Technology, or related discipline and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience. Additional years of experience in lieu of degree are acceptable.
• Experience with cloud platforms (AWS GovCloud, Azure Government) and hybrid cloud environments.
• Experience with Linux (Red Hat Enterprise Linux or CentOS) and Windows Server platform system administration.
• Proficiency with virtualization platforms (VMware, KVM) and management tools.
• Experience with automation and scripting (Ansible, Bash, PowerShell, Python).
• Familiarity with STIG compliance, system hardening, ACAS scans, and RMF processes.
• Strong understanding of enterprise networking, identity/access management, and storage concepts.
• Proven ability to troubleshoot, document, and lead systems-related projects independently.
• Experience supporting IC or DoD classified environments.