May 22, 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.
As an Enterprise Architect, you will help develop Fit-For-Purpose enterprise level architecture viewpoints through Model-Based Systems Engineering (MBSE) based on Authoritative Source of Truth (ASoT) to support engineering analysis and data-driven decision-making by senior leaders that enables the modernization and evolution of NC3 capabilities.
li>4+ years’ experience engineering and troubleshooting networks, including extensive routing and switching experience such as one or more of the following: MPLS, VPNs, routing protocols i.e. BGP, OSPF, IS-IS, switching protocols i.e. Spanning Tree Protocol, VLANs, LLDP, VoIP, Multicast protocols and emerging network technologies. May 5, 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.
June 25, 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. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
The Chief Security Architect serves as the program's principal technical authority, providing strategic risk advisory to OCIO leadership, Authorizing Officials, and ISSO(E)(M)s while overseeing the security posture of 600+ information systems across all classification levels.
This role translates the Customer's security vision into actionable technical guidance, validates the system categorization methodology, reviews high-risk change requests, and enables innovation through evaluation of emerging technologies (AI/ML, zero trust, cloud-native security) within the Customer's governance constraints.
Law Enforcement Agency OCIO's organization is moving to Information Systems Security as a Service and requires a Chief Security Architect to serve as the program's principal technical authority, providing strategic risk advisory to OCIO leadership, Authorizing Officials, and ISSO(E)(M)s while overseeing the security posture of 600+ information systems across all classification levels.
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