Security Architect in Washington

Leidos has an exciting opening for you as our next TS/SCI Security Engineer Architect working across several Task Orders under the DOMEX Technology Platform (DTP) contract supporting Digital Exploitation & OSINT Center systems. We value innovation, collaboration, and professional development. As the Security Engineering Architect Lead, your job is to provide technical security expertise in our cloud and on‑premise infrastructure, leading teams through the Risk Management Framework to system ATOs across multiple domains.

You will leverage your experience with security technologies, industry best practices, and effective security solutions. You are a demonstrated leader, skilled at achieving cross‑functional collaboration in a dynamic, fast‑paced environment. While most work is on‑site at our client location in Bethesda, MD, we also offer a flexible schedule and occasional remote tasks.

• Provide management oversight and coordination of the DTP Security Team across multiple Task Orders, streamlining ATO management processes with engineering solutions and best‑practice efficiencies.
• Provide technical guidance to team members while employing security solutions.
• Interact directly with DIA CIO and NDOC Security POCs.
• Create, improve, and maintain security policies and procedures.
• Provide operating system hardening and system patching guidance based on DISA STIGs and NIST publications.
• Analyze security incidents and provide recommendations for resolution.
• Apply strong knowledge and experience in software development in an Agile or SAFe environment.
• Serve as Product Owner for the Security Engineering Team.
• Manage individual project priorities, deliverables, and deadlines.
• Foster a collaborative environment with team members to deliver quality service and products to our customer.

• BS degree and 15+ years of prior relevant experience, OR Masters with 12+ years of prior relevant experience.
• Active TS/SCI clearance with the ability to obtain/maintain a polygraph.
• At least one DoD 8570.01‑M IASAE Level II certification: CISSP, CISSP‑ISSAP, CISSP‑ISSEP, CSSLP, or CASP+ CE (CISSP Associate not acceptable).
• Familiarity with NIST Special Publications (e.g., NIST SP 800‑27, 30, 37, 53, 60).
• Experience with CNSS publication CNSSI 1253.
• Experience supporting DoD/IC systems through the entire RMF Plus process to ATO.
• Experience with incident‑response plans, POA&M, risk‑management plans, and vulnerability‑management plans.
• Experience establishing and maintaining an SSE management process to integrate security and privacy controls into complex hardware and software systems.
• Experience managing a team of Cyber Security Engineers and ISSOs.
• Experience using Tenable Security Center and all its components.
• Experience with technologies such as Linux, Windows, firewalls, gateways, proxies, VPCs, and PKI.
• Strong analytical, communication, problem‑solving, and interpersonal skills.

• Active TS/SCI clearance with polygraph.
• Certified Scrum Master or SAFe Scrum Master.
• Experience with SAFe methodology.
• Successfully achieved ATO under RMF + across multiple domains.
• Experience working in Agile and Dev Ops Sec  environments.
• Experience with big‑data applications.
• Experience with Jira and Confluence.
• Experience with OIDC or OAuth
  2.
• Experience with Kubernetes, Rancher, or Cloudera containerization technologies; CI/CD tools like Jenkins or Git Lab;
  Elasticsearch;
  Active Directory; SQL and No
  
  SQL databases; scripting (bash, Python, or Power Shell).

Pay Range
: $ – $

Leidos is an industry and technology leader serving government and commercial customers. For more information, visit

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, or any other characteristic protected by law.