Senior Systems Administrator
MantechUnited States
Posted April 30, 2026
105900 - 177300 USD
Full Time
About the Company
MANTECH is a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact.
Job Description
Join MANTECH's CASTLE-NET Program team as a Senior Systems Administrator and be part of an agile team providing innovative, customer-focused, and cost-effective integrated enterprise IT support services. The role involves managing and maintaining IT infrastructure, installing and configuring servers, and ensuring maximum system security and availability.
Requirements
- High School Diploma/GED with 12+ years of experience
- Bachelor's degree in IT or Computer Science with 8+ years of experience in systems administration
- Comprehensive knowledge of Windows Server, Red Hat, and CentOS, as well as virtualization technologies like VMware vSphere
- Proficiency in scripting languages such as PowerShell, Bash, or Python for automation and performance tuning
- Experience with system monitoring, patch management, and implementing rigorous security remediations
Benefits
- Health Insurance
- Life Insurance
- Paid Time Off
- Holiday Pay
- short-term and long-term Disability
- Retirement and Savings
- Learning and Development opportunities
- Wellness programs