Senior Systems & Infrastructure Administrator (DoD - Secret)

Arenatechnologies; Arlington (VA); On-site; USD 130,000 - 170,000; Full time

Benefits offered by this job

Health insurance

Flexible spending accounts

Health savings accounts

Retirement savings plans

Life and disability insurance programs

Paid time away (and unpaid)

Job summary

Systems Planning and Analysis, Inc. (SPA) is seeking Systems & Infrastructure Administrators to operate, maintain, and improve environments hosting APACS and related capabilities across multiple classifications.

These roles ensure mission systems remain available, secure, performant, and scalable. The position requires a Bachelor’s degree in IT or engineering, 4–8+ years in enterprise IT, the ability to troubleshoot, familiarity with change/configuration management, and a current Secret

Qualifications

• 4–8+ years of experience administering enterprise IT environments (servers, storage, networks, virtualization, or cloud).
• Ability to troubleshoot performance and availability issues in multi‑tier applications.
• Familiarity with structured change and configuration management practices.
• Secret clearance and the ability to maintain this throughout employment.

Responsibilities

• Manage servers, environments, and configurations supporting APACS and related systems; perform monitoring, patching, troubleshooting, and performance tuning.
• Support deployment of application updates and maintain development, test, and production environments.
• Evaluate infrastructure health and recommend improvements for performance, reliability, and capacity.
• Work with developers, cybersecurity staff, hosting providers, and system administrators to resolve issues and optimize system behavior.
• Analyze system performance metrics and incident trends to identify root causes and long‑term solutions.
• Document system architectures, configurations, procedures, interfaces, and dependencies to support continuity, onboarding, and leadership visibility.

Skills

Troubleshooting

Change management

Security clearance

Education

Bachelor’s degree in IT/engineering or related field

Job description

Systems Planning and Analysis, Inc. (SPA) is seeking Systems & Infrastructure Administrators to operate, maintain, and improve environments hosting APACS and related capabilities across multiple classifications.

These roles ensure mission systems remain available, secure, performant, and scalable. The position requires a Bachelor’s degree in IT or engineering, 4–8+ years in enterprise IT, the ability to troubleshoot, familiarity with change/configuration management, and a current Secret