Leidos has a new and exciting opportunity for an Information Assurance Sr SME in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!
Job Summary: Exciting opening for an Information Assurance Sr SME to support a large customer organization in the fast-growing National Security Group. This position is located in Bethesda, MD. Candidates must currently possess or be able to acquire a TS/SCI Polygraph security clearance.
Responsibilities include:
- Respond to congressional inquiries on Cybersecurity issues; turning cybersecurity needs and capabilities into requirements and detailed technical solutions; developing and maintaining a list of Cybersecurity Architecture needs, dependencies, risks, and mitigation plans; analyzing cybersecurity best practices to identify gaps and improvement opportunities.
- Be able to contribute meaningful input to Cybersecurity policies and influence the trajectory of Zero Trust in the IC. You will also be developing and publishing baseline security requirements for common enterprise services to ensure capabilities are in compliance with cybersecurity directives and policies, conducting critical path analysis, risk analysis, and task dependency analysis.
- Developing security requirements and constraints to provide input to foundational technical documents, including program architectural artifacts, business cases, and concept of operations.
- Documenting architectural rules for Zero Trust
- Diagram an interim and future architecture for Zero Trust implementation
- Define/communicate the Zero Trust integration expectations for all ITE services
- Creating a Zero Trust playbook
Basic Qualifications:
- Active TS/SCI with Polygraph or the ability to obtain a TS/SCI with Polygraph (Must be a US Citizen to qualify).
- Require MS degree and 15 – 20 years of prior relevant experience in order to operate within the scope contemplated by the level.
- Experience in cybersecurity responsibility areas listed above.
- Secure cloud architecture expertise
- Expert knowledge in Identity, Authentication and Authorization.
- Experience partnering across the IC
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:September 16, 2025For 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.
Top Skills
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.
