Principal Cyber Security Architect

This role is part of a growing program and hiring will depend on available funding. We review applications on a rolling basis but the timeline for interviews and offers may some cases we may extendcontingent offersthat become active once funding is confirmed.

This position is located inGaithersburg MD; Egg Harbor Township NJ; or Eagan MN. This is an opportunity to contribute to projects that impact millions of air travelers.

This is a hybrid position requiring 3 days onsite and 2 days remote work. Candidates should reside a commutable distance to one of the above locations.

Leidos is seeking a Cyber Security Architect to join the Air Traffic Business Area within the Homeland Sector supporting the development of the Leidos Common Automation Platform (L-CAP). L-CAP is a mission-critical future-ready automation platform built on a hybrid cloud data mesh architecture enabling next-generation air traffic management capabilities. You will serve as a senior cybersecurity architect responsible for defining the security architecture across a large-scale hybrid cloud platform supporting national air traffic operations. We are building with an AI-first engineering mindset embracing emerging AI capabilities and modern development practices to accelerate delivery improve software quality and continuously evolve how we design and build mission-critical systems. This position supports government programs and requires the ability to obtain andmaintaina favorable Public Trust investigation.

What Youll Do

• Define andmaintainthe 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 intoDevSecOpspipelines 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 byidentifyingand applying AI-assisted development capabilities automation and emerging software engineering practices that improve developer productivity code quality testing and delivery.

Core Technical Qualifications:

• Bachelors degree with 12 years of cybersecurity experience

• Demonstrated cybersecurity architecture experience for enterprise platforms

• Deep knowledge of FedRAMP authorization processes and requirements

• Expertisein NIST 800-53 security controls and Risk Management Framework (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 securityexpertiseacross AWS and/or Azure environments

• Understanding of distributed systems security challenges and solutions

• Ability to obtain andmaintaina Public Trust clearance; US citizenship; subject to government background investigation

• 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

Preferred / Desired Qualifications

• CISSP CISM or equivalent cybersecurity certifications

• FAA or aviation-sector cybersecurity experience

• Penetration testing and red team experience

• SIEM architecture and security operations design

• Mission assurance and continuity of operations experience

• DoD or federal civilian agency cybersecurity programs

• Experience securing real-time operational systems in aviation or air traffic control environments

Why Leidos

Youll work on systems where performance precision and reliability matter every second. This is not experimental AI for prototypes. This is disciplined responsible AI applied to mission-critical software that supports national infrastructure.

If youre excited by solving complex problems in regulated real-world environments and using AI as a force multiplier rather than a shortcut wed like to talk.

ATMC

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

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.