The Defense Sector at Leidos is looking for a Senior Cybersecurity Architect to support a fast-paced program with Air Force Life Cycle Management Center. The Senior Cybersecurity Architect will provide comprehensive subject matter expertise and execution of cybersecurity engineering and architecture functions in support of a weapons system program with the Air Force. This role is critical in ensuring the security and integrity of program IT infrastructure, protecting sensitive data, and mitigating cyber threats. The Senior Cybersecurity Architect will be an integral member of the program's leadership team, collaborating on strategic initiatives and ensuring alignment with overall program goals. The ideal candidate will have a strong technical background in cybersecurity principles, tools, and best practices.
As the Senior Cybersecurity Architect, you will lead the design, implementation, and governance of security solutions across our enterprise environments. This role is pivotal in ensuring the confidentiality, integrity, and availability of both on-premises and cloud-hosted assets while enabling secure innovation at scale by working closely with cloud engineers, cybersecurity analysts, and program leadership to drive continuous improvement and deliver value to the mission.
Why This Role Matters
Security and compliance in defense-sector classified networks have long lived in a structural paradox: the processes designed to protect mission software are the same processes that slow it down. Manual authorization cycles. Point-in-time snapshots. Documentation that proves intent but not execution. Every program team re-solves the same compliance problems. Every platform that wants to help them has to run the gauntlet first.
What you'll build isn't a workaround. It's a better architecture: policy-as-code that enforces compliance at the moment of deployment, zero-trust built-in to system design from day one, continuous evidence that gives auditors real-time proof instead of point-in-time packages, and an ATO that program teams can inherit rather than pursue. The result is a security posture that's stronger than manual review, stricter, and more consistent. You are here to build the foundational cybersecurity architecture that the program can scale and replicate across multiple environments.
Primary Responsibilities:
- Develop and implement enterprise-level cybersecurity strategies aligned with DoD and Federal security guidelines.
- Ensure selected technologies and architecture designs are resilient to modern cyber threats.
- Architect and implement secure cloud infrastructure across platforms.
- Define and enforce cloud security policies, standards, and automation frameworks.
- Support timely completion of Authorization to Operate (ATO) activities across multiple environments at various classification levels.
- Integrate security into CI/CD pipelines and DevOps workflows.
- Support cloud identity and access management (ICAM), encryption, and key management systems.
- Configure, tune, and monitor enterprise security tools.
- Monitor network and system security to identify and respond to vulnerabilities and incidents.
- Conduct risk assessments and develop strategies to mitigate identified risks.
- Collaborate with IT teams to ensure the integration of security measures into all infrastructure projects.
- Develop and implement security policies, standards, and procedures to protect sensitive information.
- Provide technical support and guidance on cybersecurity tools and technologies.
- Stay updated on emerging cybersecurity threats and industry trends to enhance the organization's security posture.
- Develop and refine documentation to gain and maintain DoD accreditation for the systems on the program.
- Participate in the Change Control Board (CCB) process for supporting all major engineering milestones and decisions for the program.
Basic Qualifications:
- Bachelor’s Degree with 12+ years of experience or Master’s Degree with 10+ years of experience. Additional equivalent industry experience in lieu of education will be considered.
- US Citizen with at least an active Top Secret clearance and the ability to obtain and maintain an SCI prior to your start date.
- Proven experience in cybersecurity engineering or related roles.
- Hands-on experience with configuring cybersecurity tools and software for enterprise use, with a specific focus on Splunk (Enterprise Security, SOAR, UBA), HBSS/ESS (Trellix ePO), ACAS (Tenable/Nessus), and SolarWinds Observability
- Familiarity with DoD cybersecurity frameworks such as Risk Management Framework (RMF)
- Strong knowledge of network security, firewalls, intrusion detection/prevention systems, and encryption technologies.
- Excellent problem-solving skills and attention to detail.
- Strong communication skills for collaborating with technical and non-technical stakeholders.
- DoD 8140 advanced certifications (CISM, CISSP, ISSAP)
Preferred Qualifications:
- Project Management Certifications (PMP, ISSMP, etc.)
- Microsoft Azure Certifications (AZ-500, AZ-305, etc.)
- Working knowledge of cloud security and securing cloud-based infrastructure.
- Experience with Azure Stack Hub/Azure Local family of products
- Experience securing classified DoD networks, such as networks connected to SIPR or JWICS
- Familiarity with incident response processes and tools.
- Experience with scripting or automation tools for security tasks.
- Ability to work in a dynamic environment and adapt to changing priorities.
- Experience with Agile framework and DevSecOps
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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:June 11, 2026For 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.
The Leidos pay range for this job level is a general guideline only and 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.
Skills Required
- Bachelor's degree with 12+ years experience or Master's degree with 10+ years experience (or equivalent experience)
- US Citizen with an active Top Secret clearance and ability to obtain and maintain SCI prior to start date
- Proven experience in cybersecurity engineering or related roles
- Hands-on experience configuring Splunk (Enterprise Security, SOAR, UBA)
- Hands-on experience with HBSS/ESS (Trellix ePO)
- Hands-on experience with ACAS (Tenable/Nessus)
- Hands-on experience with SolarWinds Observability
- Familiarity with DoD cybersecurity frameworks such as RMF and ATO processes
- Strong knowledge of network security, firewalls, intrusion detection/prevention systems, and encryption technologies
- DoD 8140 advanced certifications (CISM, CISSP, ISSAP)
- Strong communication skills and attention to detail
- Experience integrating security into CI/CD pipelines and DevOps workflows
- Experience securing cloud infrastructure and cloud identity/access management (ICAM) and key management
- Project Management Certifications (PMP, ISSMP, etc.)
- Microsoft Azure Certifications (AZ-500, AZ-305, etc.)
- Working knowledge of cloud security and securing cloud-based infrastructure
- Experience with Azure Stack Hub/Azure Local family of products
- Experience securing classified DoD networks (SIPR, JWICS)
- Familiarity with incident response processes and tools
- Experience with scripting or automation tools for security tasks
- Experience with Agile framework and DevSecOps
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
