Senior Cyber Security Architect — AI-First Hybrid Cloud Security

Leidos; Eagan (MN); Hybrid; USD 131,000 - 237,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

Leidos seeks a senior Cyber Security Architect to define security across a large-scale hybrid cloud platform (L-CAP) supporting national air traffic operations. You will lead security architecture, FedRAMP strategy, and ATO efforts, integrating zero trust and SBOM practices across DevSecOps.

This role requires US citizenship and eligibility for Public Trust, with assignments to multiple locations including Eagan, MN.

Qualifications

• Bachelor's degree with 12+ years of cybersecurity experience.
• Demonstrated cybersecurity architecture experience for enterprise platforms.
• Deep knowledge of FedRAMP authorization processes and requirements.
• Expertise in NIST 800-53 security controls and RMF.
• Experience leading ATO efforts for federal information systems.
• Knowledge of zero trust architecture principles and implementation patterns.
• Experience with safety-critical systems security requirements.
• Cloud security expertise across AWS and/or Azure environments.
• Understanding of distributed systems security challenges and solutions.
• Experience securing distributed real-time services and microservice communication patterns.
• Knowledge of software supply chain security practices (SLSA, SBOM, artifact signing, dependency scanning).
• Ability to obtain and maintain a Public Trust
• U.S. citizenship required
• Successful completion of background investigations as required by the government customer

Responsibilities

• Define and maintain the cybersecurity architecture for the L-CAP platform.
• Develop and execute the FedRAMP compliance strategy across cloud environments.
• Lead Authority to Operate (ATO) planning and execution activities.
• Conduct threat modeling and vulnerability assessments across platform components.
• Design and implement zero trust architecture principles across the enterprise.
• Establish and govern the security controls framework aligned to NIST 800-53.
• Integrate security practices into DevSecOps pipelines and CI/CD workflows.
• Provide cybersecurity governance across four Agile Release Trains (ARTs).
• Define security requirements for platform services and application teams.
• Perform risk assessments and recommend mitigations for emerging threats.
• Define security architecture for distributed real-time ATC services including inter-service communication protection and API gateway security.
• Establish software supply chain integrity controls including SBOM generation, artifact signing, and dependency vulnerability management.
• Design security patterns for cloud-native service communications protecting mission-critical ATC data flows.
• Champion an AI-first engineering culture by identifying and applying AI-assisted development capabilities, automation, and emerging software engineering practices that improve developer productivity, code quality, testing, and delivery.

Skills

Cybersecurity architecture

FedRAMP security models

NIST 800-53

RMF

Zero trust

ATO leadership

Cloud security (AWS/Azure)

Safety-critical systems security

SLSA/SBOM/artifact signing

Public Trust eligibility

U.S. citizenship

Federal information systems security

Education

Bachelor's degree in cybersecurity or related field

Job description

Leidos seeks a senior Cyber Security Architect to define security across a large-scale hybrid cloud platform (L-CAP) supporting national air traffic operations. You will lead security architecture, FedRAMP strategy, and ATO efforts, integrating zero trust and SBOM practices across DevSecOps.

This role requires US citizenship and eligibility for Public Trust, with assignments to multiple locations including Eagan, MN.