C-UAS Cyber Security Architect — RMF/ATO, Zero-Trust

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

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