Job Description

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Are you ready for your next career challenge?

Leidos Defense provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions.

Leidos Defense is seeking a talented Information System Security Officer (ISSO) to join a diverse team committed to the sustainment of critical Army systems. The Information System Security Officer (ISSO) will be responsible for supporting our Task Force 2200 (TF2200) program. The ISSO will report to the TF2200 Operations Manager and provide cybersecurity support to the TF2200 program.

Primary Responsibilities:

• Responsible for meeting both regulatory and non-regulatory compliance demands.

• Responsible for management and enforcement of information security policies, conducting security and risk assessments using security frameworks (e.g., NIST, RMF, Common Criteria, etc.), mitigating risk via security controls, vulnerability management (scanning, assessment, reporting, and mitigation verification).

• Responsible for the protection of information and maintain security controls for TF2200 systems in order to reduce risk.

• Support IA continuous monitoring tasks (auditing, security patching, scanning) to ensure compliance with security policies and procedures.

• Participate in Engineering Change Process (ECP) to address changes to baseline of the system.

• Support system accreditation inspections and activities as needed with relevant stakeholders.

• Respond to and perform IT troubleshooting of TF2200 systems as required.

• Assist with maintaining the security posture of TF2200 systems by performing regular cybersecurity updates to systems.

• Support the Risk Management Framework (RMF) authorization process to include developing and maintaining artifacts for the IS Body of Evidence (BoE).

• Perform in-office IT tasks as required and assist team members with issues as they arise.

Basic Qualifications:

• Candidate must be a U.S. Citizen and hold an active TS/SCI security clearance.

• A relevant BS degree with 4+ years of applicable experience is required.

• Solid understanding of the Risk Management Framework (RMF).

• Candidate must demonstrate experience interpreting and applying government security regulations such as NIST SP 800.53 Rev 5, DCSA NISPOM to information systems.

• DoDM 8570.01 IAT Level II/ DoD 8140 Cybersecurity Intermediate Certificate (Security+) is required.

• Candidate must be highly organized and self-motivated with excellent documentation skills. Candidate should be able to communicate effectively with customers and team members at all levels.

• Some travel may be required, up to 10%.

• Candidate must be a resident of the Colorado Springs, CO area.

• Candidate should have significant hands-on experience implementing security, hardware, software, and network components.

• Candidate must have experience implementing Security.

• Candidate should possess strong technical writing.

• Experience implementing Security Technical Implementation Guides (STIG) on various Operating Systems (Windows, Linux).

Preferred Qualifications:

• Familiarity with various cybersecurity tools (SCC, ACAS, Evaluate STIG, STIG Viewer, etc.)

• Experience with Army Space Control systems

• Experience with DoD customers and their requirements, primarily USASMDC

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

May 6, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.