Security Control Assessor

Leidos Inc; Alexandria (VA); On-site; USD 70,000 - 126,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave and Retirement

Job summary

Leidos is seeking multiple Security Control Assessors to support our assessment team in Alexandria, VA, Fort Meade, MD, or Chambersburg, PA. Roles are primarily on-site with light telework at the program manager's discretion, and travel may reach about 80% of the time.

Responsibilities include performing DoD cybersecurity assessments, validating RMF controls, and documenting findings in eMASS, with mentorship to junior staff.

Qualifications

• Active DoD Top Secret clearance with SCI eligibility.
• Current DoD 8570 IAM II or IAT II certification.
• Willing to travel up to 80% of the time.
• Bachelor's degree in IT-related field and five years of cybersecurity experience.
• Three years in a Certification and Accreditation/A&A role.
• Experience with STIGs, SRGs, POA&Ms and tools such as eMASS, STIG Viewer, Nessus, ACAS, SCAP or HBSS.
• Strong understanding of RMF, NIST SP 800-37/53, CNSSI 1253 and related tech areas.
• Strong written and verbal communication skills.

Responsibilities

• Conduct cybersecurity assessments, audits, and inspections for DoD organizations and partners.
• Evaluate systems using cyber threat emulation and performance-based testing.
• Adhere to policies and processes for each assessment type.
• Support assessment development and execution with security expertise.
• Coordinate logistics, test plans, and scope with the SCA Team Lead.
• Perform vulnerability assessments and document findings in eMASS.
• Analyze security gaps and provide mitigation recommendations.
• Validate RMF controls and DoD policy compliance.
• Provide risk analysis and authorization recommendations.
• Participate in daily assessment reviews, in-briefs, and out-briefs.
• Mentor senior staff and share best practices.

Skills

Security clearance

DoD IAM II/IAT II

Willing to travel 80%

Bachelor's degree in IT

5 years cybersecurity experience

3 years C&A/A&A experience

STIGs/SRGs/POA&Ms experience

RMF/NIST knowledge

Strong reporting skills

Education

Bachelor's degree in IT-related field

Tools

eMASS

STIG Viewer

Nessus

ACAS

SCAP

HBSS

Job description

Job Description

Leidos is seeking multiple Security Control Assessors to support our assessment team. These positions can be based out of any of our three locations - Alexandria, VA, Fort Meade, MD, or Chambersburg, PA. These positions are primarily on-site, but light, partial telework may be available at the discretion of our customer and program management. Significant travel may be required - estimated 80% of the time.

Responsibilities

• Conduct cybersecurity assessments, audits, and inspections for DoD organizations and partners handling DoD information or connecting to the DoDIN.
• Evaluate systems and Defensive Cyberspace Operations using cyber threat emulation and performance-based testing.
• Adhere to policies and processes for each assessment type.
• Support assessment development and execution to ensure security expertise is properly applied.
• Coordinate logistics, test plans, and scope with the SCA Team Lead.
• Perform vulnerability assessments, capture results using STIG Viewer or designated tools, and document findings in eMASS.
• Analyze security gaps and provide mitigation recommendations.
• Validate cybersecurity controls, TTPs, STIGs, RMF controls, and compliance with DoD policies and guidelines.
• Provide risk analysis and assessment results for authorization recommendations.
• Participate in daily assessment reviews, in-briefs, and out-briefs, sharing findings with the SCA-R.
• Senior staff, mentor and guide personnel by providing technical expertise, best practices, and professional development support to enhance team capabilities and knowledge

Basic Qualifications

• Active DoD Top Secret clearance with SCI eligibility required
• Current DoD 8570 IAM II or IAT II certification
• Ability and willingness to travel for assessments as required, up to 80% of the time
• Bachelor's degree (IT-related field preferred) and five (5) years of cybersecurity or network security experience. Additional relevant experience may be considered in lieu of degree.
• Three (3) years of experience in a Certification and Accreditation/A&A role
• Demonstrated experience with STIGs, SRGs, POA&Ms and cybersecurity best practices, as well as relevant tools such as eMASS, STIG Viewer, Nessus, ACAS, SCAP, or HBSS
• Strong understanding of the RMF process, NIST SP 800- 37, NIST SP 800-53, CNSSI 1253, as well as key technologies areas/domain such as: Network, Mobility, Windows, UNIX, Cloud Environments and Cloud Native Tools/Services, Host Based Security System (HBSS)/Endpoint Security Solutions (ESS), Databases, Applications
• Strong written and verbal communication skills for reporting assessment findings

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

September 30, 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:Pay Range $69,550.00 - $125,725.00

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.