Cyber Infrastructure Lead — TS Clearance (Windows & Linux)

Leidos; California (MD); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos' Corporate Information Security Office seeks a Cyber Infrastructure Lead to advance enterprise IT security from our California, MD office. The role blends hands-on engineering with leadership, mentoring, and cross-team coordination to deliver secure, reliable systems across Windows and Linux.

The ideal candidate will drive policy, ensure compliance, and guide incident response, with a focus on secure architecture and continuous improvement. A Top Secret clearance is required.

Qualifications

• Bachelor's degree in Information Systems or related field; 8–12 years of related experience or a master’s with 6–10 years.
• Detailed understanding of RMF, NIST, ICD, CNSS standards.
• DoD 8140 IAT Level II certification required or equivalent.
• Experience with compliance scanning tools (SCAP) and vulnerability tools (ACAS).
• Familiarity with Windows/Linux, network technologies, and STIG practices.
• Strong writing and verbal communication; able to work in a regulated environment.

Responsibilities

• Administer and maintain Windows and Linux systems securely.
• Automate routine tasks with scripting.
• Collaborate with IA, engineering, and operations teams to deliver IT services.
• Monitor and respond to information system, network, and security events.
• Develop procedures for CM and security policy enforcement.
• Lead security education and mentoring for engineers.
• Participate in audit, risk assessment, and continuous monitoring activities.
• Provide guidance to junior administrators and ensure compliance with security directives.
• Manage change control and Scrum participation related activities.

Skills

RMF/NIST standards

DoD 8140 IAT II

SCAP/ACAS

Windows/Linux administration

STIG implementation

Security policy development

Team leadership/mentorship

Documentation/compliance

Education

Bachelor's degree in Information Systems or related field

Master's degree with 6–10 years (or equivalent experience)

Tools

Jira

Bitbucket

Confluence

ServiceNow RMF Workflow

Job description

Leidos' Corporate Information Security Office seeks a Cyber Infrastructure Lead to advance enterprise IT security from our California, MD office. The role blends hands-on engineering with leadership, mentoring, and cross-team coordination to deliver secure, reliable systems across Windows and Linux.

The ideal candidate will drive policy, ensure compliance, and guide incident response, with a focus on secure architecture and continuous improvement. A Top Secret clearance is required.