Classified IT System Administrator, Sr / Onsite: PA, CO, CA, AL or FL

About the Role

This Enterprise Operations position supports the DarkStar Enterprise network, delivering secure, mission-critical IT capabilities to collateral Secret programs across the enterprise. As a Senior Systems Administrator, you will play a direct role in enabling national security objectives by performing technical planning, system integration, and verification and validation of classified infrastructure used by critical programs. This is a hands-on position focused on resolving complex technical challenges across applications, systems, and network connectivity within a classified environment.

You will be part of a high-performing team responsible for maintaining and defending enterprise IT systems that operate in complex, security-constrained environments. You will perform functional analysis, trade studies, requirements allocation, and interface definition studies to translate customer and program requirements into hardware and software specifications.

Responsibilities

• Administer and support Linux and/or Windows systems, network components, and storage platforms.
• Perform system installation, configuration, maintenance, and troubleshooting to ensure continuous availability of mission systems.
• Ensure the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints.
• Perform analyses across the full system lifecycle: concept, design, fabrication, test, installation, operation, maintenance, and disposal.
• Contribute to Information Assurance efforts by performing vulnerability scans, remediating security findings, applying patches, and implementing system hardening in compliance with stringent security requirements.
• Ensure all enterprise assets and software are properly tracked, controlled, and audit-ready.
• Lead system integration, upgrades, and sustainment activities alongside engineers, cybersecurity professionals, and program stakeholders.
• Apply systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional specifications.
• Support cost and risk, supportability, and effectiveness analyses while helping resolve incidents, execute changes, and improve operational processes that directly impact mission success.
• Perform technical planning, system integration, verification and validation, and supportability analyses for total systems and information technology solutions.
• Perform functional analysis, timeline analysis, trade studies, requirements allocation, and interface definition studies to translate customer requirements into hardware and software specifications.

Requirements

• US Citizenship (no dual citizenship), with ability and willingness to obtain Top Secret Clearance.
• 3+ years of demonstrated work experience with system administration in one or more areas: Linux, Windows, networking, or storage.
• Experience performing technical planning, system integration, or systems analysis in an IT environment.
• Experience troubleshooting and resolving complex technical issues across multiple system domains.
• Knowledge of system maintenance activities such as patching, updates, and configuration management.
• Understanding of networking concepts (IP, DNS, routing, etc.).
• Experience supporting users and translating customer requirements into technical solutions.
• Ability to follow and improve established processes for incident, change, and problem management.
• Strong communication skills and ability to work effectively in a team environment.

Desired Skills

• Active Secret or Top Secret clearance.
• 5+ years of experience administering Linux and/or Windows server environments.
• Experience with virtualization technologies (VMware, KVM, or similar).
• Experience with storage systems (e.g., NetApp or similar platforms).
• Knowledge of Active Directory, domain services, and Windows/Linux integration.
• Experience with system hardening, vulnerability scanning, and remediation practices.
• Experience performing cost and risk analysis.
• Familiarity with automation tools (e.g., Ansible).
• Scripting experience (e.g., Python, Bash, or PowerShell).
• Experience working in classified or air-gapped environments.
• Familiarity with encryption technologies (SSL/TLS) and certificate management.

Locations

This is an onsite role and can be located in one of the following locations:

• King of Prussia, PA
• Huntsville, AL
• Littleton, CO
• Sunnyvale, CA
• Titusville, FL

Pay

Full-Time Salary Range: $95,900.00 - $178,100.00

Benefits

• Medical, Dental, and Vision insurance.
• Flexible work arrangements and schedules (e.g., 4x10).
• 401(k) match.
• Paid time off and holidays.
• Parental Leave.
• Employee Assistance Program (EAP).
• Flexible Spending Accounts.
• Education Assistance.
• Life Insurance.
• Short-Term and Long-Term Disability.
• Annual short-term and/or long-term incentive compensation programs (performance-based and not guaranteed).

For Washington state applicants only:

• Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) for incidental absences and other reasons; receive at least 90 hours for holidays.
• Represented full-time employees: accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays.
• PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.