C-UAS Cyber Security Architect

Leidos; Alexandria (VA); Hybrid; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking a Cyber Security Architect to lead end-to-end security architecture for the Army's C-UAS Network Communication System (NCS). Locations: Huntsville, AL and Alexandria, VA; telecommuting may be available.

The role defines secure design across encryption, authentication, access control, and secure cloud/remote access patterns. You will drive RMF/ATO artifacts, threat modeling, and risk assessments, coordinate with ISSM/ISSO/AO stakeholders, mentor engineers, and defend the

Qualifications

• Bachelor’s degree in Cybersecurity/CS/Engineering; 10+ years of cybersecurity/security architecture experience.
• Active Secret clearance with ability to obtain Top Secret clearance and DoD 8570/8140 IAT/IASAE II/III certifications (CISSP, CASP+, etc.).
• Proven experience architecting security for complex networked/tactical systems.
• Expertise in encryption, identity/authentication, access control, and secure cloud/remote-access design.
• Strong RMF/ATO experience and hands-on development of security architecture artifacts.
• Experience with threat modeling, Agile security oversight, and briefing senior government stakeholders.

Responsibilities

• Define and lead the NCS security architecture, trust boundaries, and system-wide controls.
• Architect encryption, identity/MFA, and RBAC for tactical and DIL environments.
• Design secure cloud integration and zero-trust remote access for tactical data pipelines.
• Lead RMF/ATO strategy, author key artifacts, and coordinate with ISSM/ISSO/AO stakeholders.
• Conduct architecture-level threat modeling and risk assessments; define design-level mitigations.
• Provide security oversight to Agile engineering teams; review sprint deliverables for compliance.
• Represent security architecture during government assessments and TIMs; maintain architecture documentation.
• Mentor cybersecurity engineers and enforce secure-by-design principles.

Skills

Security architecture

RMF/ATO

Threat modeling

Encryption & PKI

Identity & MFA

Cloud security

Zero-trust networks

Agile security oversight

Education

Bachelor’s in Cybersecurity/CS/Engineering

Tools

eMASS

RSA Archer

Job description

Description

Cyber Security Architect – C‑UAS Network Communication System (NCS)

Locations: Huntsville, AL and Alexandria, VA. Telecommuting may be available.

Clearance: Active Secret with the ability to obtain a Top-Secret security clearance.

This position is contingent upon contract award.

Leidos is seeking a Cyber Security Architect to lead end‑to‑end security architecture, risk analysis, and ATO strategy for the Army’s Counter‑UAS (C‑UAS) Network Communication System (NCS). You will define the secure design that protects M‑LIDS and FS‑LIDS systems supporting Short‑Range Air Defense (SHORAD) missions.

This role owns the security architecture across the lifecycle—encryption, authentication, access control, secure cloud/remote‑access patterns, RMF/ATO artifacts, and threat modeling—while guiding engineering teams and defending the technical approach to government stakeholders.

Key Duties

• Define and lead the NCS security architecture, trust boundaries, and system‑wide controls.
• Architect encryption, identity/MFA, and RBAC for tactical and DIL environments.
• Design secure cloud integration and zero‑trust remote access for tactical data pipelines.
• Lead RMF/ATO strategy, author key artifacts, and coordinate with ISSM/ISSO/AO stakeholders.
• Conduct architecture‑level threat modeling and risk assessments; define design‑level mitigations.
• Provide security oversight to Agile engineering teams; review sprint deliverables for compliance.
• Represent security architecture during government assessments and TIMs; maintain architecture documentation.
• Mentor cybersecurity engineers and enforce secure‑by‑design principles.

Basic Qualifications

• Bachelor’s in Cybersecurity/CS/Engineering + 10+ years cybersecurity/security architecture experience.
• Active Secret clearance with the ability to obtain a Top Secret Clearance
• DoD 8570/8140 IAT/IASAE II/III certification (CISSP, CASP+, etc.).
• Proven experience architecting security for complex networked/tactical systems.
• Expertise in encryption, identity/authentication, access control, and secure cloud/remote‑access design.
• Strong RMF/ATO experience and hands‑on development of security architecture artifacts.
• Experience with threat modeling, Agile security oversight, and briefing senior government stakeholders.

Preferred Qualifications:

• Experience with C‑UAS/SHORAD/LIDS programs.
• Security architecture for fielded DoD tactical networks.
• eMASS/RMF control assessment experience.
• Familiarity with DoD crypto standards and DIL network security.
• DevSecOps/CI‑CD security architecture experience.
• Advanced certifications (CISSP‑ISSAP, CISM, GIAC).

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 9, 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 $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand 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.

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

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.

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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.