Senior Cybersecurity Architect - Hybrid Cloud & Zero Trust

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

Job summary

Leidos seeks a Cyber Security Architect to join the Air Traffic Business Area, supporting the L-CAP platform. The role is hybrid (3 days onsite, 2 days remote) and located in Gaithersburg, MD; Egg Harbor Township, NJ; or Eagan, MN.

You will define security architecture across a large-scale hybrid cloud, lead FedRAMP and ATO activities, apply zero-trust principles, and ensure NIST 800-53 controls while advancing AI-enabled approaches for mission-critical air traffic systems.

Qualifications

• Bachelor's degree with 12+ years of cybersecurity experience.
• Experience designing security architectures 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.
• Ability to obtain and maintain a Public Trust clearance; US citizenship required.

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

NIST 800-53 RMF

ATO planning

Threat modeling

DevSecOps integration

Zero trust

Cloud security AWS/Azure

Public Trust clearance

US citizenship

Education

Bachelor's degree in cybersecurity or related field

Tools

AWS

Azure

Job description

Leidos seeks a Cyber Security Architect to join the Air Traffic Business Area, supporting the L-CAP platform. The role is hybrid (3 days onsite, 2 days remote) and located in Gaithersburg, MD; Egg Harbor Township, NJ; or Eagan, MN.

You will define security architecture across a large-scale hybrid cloud, lead FedRAMP and ATO activities, apply zero-trust principles, and ensure NIST 800-53 controls while advancing AI-enabled approaches for mission-critical air traffic systems.