Principal Identity Solutions Engineer TS/SCI Polygraph

Leidos has a new and exciting opportunity for a Principal Identity Solutions Engineer 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. *You must have an active TS/SCI Polygraph* No exceptions, unfortunately. 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: The Secure Token Service (STS) Team Lead is responsible for leading the design, implementation, and sustainment of enterprise Identity, Credential, and Access Management (ICAM) solutions focused on Secure Token Services (STS) and Single Sign-On (SSO) capabilities. This role leads a multidisciplinary team of developers, system integrators, and system administrators to architect, deploy, and maintain commercial off-the-shelf (COTS) identity management solutions across enterprise environments. The ideal candidate possesses deep technical expertise in federation technologies, PKI, authentication protocols, cloud environments, and enterprise security architectures while serving as the technical lead for planning, implementation, and customer engagement. Desired Skills Lead the architecture, implementation, and sustainment of enterprise Secure Token Service (STS) and Single Sign-On (SSO) solutions. Manage and mentor a team of developers, system integrators, and system administrators, including onboarding, training, and technical oversight. Gather customer requirements, develop implementation strategies, and estimate work efforts for new capabilities and enhancements. Install, configure, integrate, and maintain COTS identity management platforms across Linux, Windows, and cloud environments. Design and support federation solutions utilizing SAML, OAuth, OpenID Connect (OIDC), PKI/TLS, and modern authentication technologies. Develop automation solutions and integrate modern and legacy technologies to improve operational efficiency while maintaining technical documentation in Confluence. Troubleshoot complex authentication, networking, and identity management issues while ensuring adherence to software development lifecycle (SDLC) and change management processes. Required Qualifications Active TS/SCI clearance with polygraph. Bachelor’s Degree or higher in computer engineering or in a field related to computer engineering or computer science disciplines. Minimum 15 years of Systems Engineering or related technical experience supporting enterprise IT environments. Original Posting: July 20, 2026 For 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. Pay Range: Pay Range $131,300.00 - $237,350.00 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. #J-18808-Ljbffr Leidos