Description Information Systems Security Engineer (ISSE) Skill Level 3The Information Systems Security Engineer (ISSE) shall perform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations, and recommend mitigation strategies. Validates and verifies system security requirements definitions and analysis and establishes system security designs. Designs, develops, implements and/or integrates IA and security systems and system components including those for networking, computing, and enclave environments to include those with multiple enclaves and with differing data protection/classification requirements. Builds IA into systems deployed to operational environments. Assists architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutions. Supports the building of security architectures. Enforce the design and implementation of trusted relations among external systems and architectures. Assesses and mitigates system security threats/risks throughout the program life cycle. Contributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations. Reviews certification and accreditation (C&A) documentation, providing feedback on completeness and compliance of its content. Applies system security engineering expertise in one or more of the following to; system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. Support security authorization activities in compliance with NSA/CSS Information System Certification and Accreditation Process (NISCAP) and DoD Information Assurance Certification and Accreditation Process (DIACAP) process, the NIST Risk Management Framework (RMF) process, and prescribed CSS business processes for security engineering.The Level 3 Information Systems Security Engineer (ISSE) shall possess the following capabilities: Participate as a security-engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environmentsParticipate as a security-engineering representative on engineering teams for the design, development, implementation and/or integration of IA architectures, systems, or system componentsParticipate as the primary security-engineering representative on engineering teams for the design, development, implementation, evaluation, and/or integration of secure networking, computing, and enclave environmentsParticipate as the primary security-engineering representative on engineering teams for the design, development, implementation, evaluation, and/or integration of IA architectures, systems, or system componentsSupport the Government in the enforcement of the design and implementation of trusted relationships among external systems and architecturesApply knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environmentsSupport security planning, assessment, risk analysis, and risk managementIdentify overall security requirements for the proper handling of Government dataInteract with the customer and other project team membersPerform system or network designs that encompass multiple enclaves, to include those with differing data protection/classification requirementsProvide security planning, assessment, risk analysis, and risk managementRecommend system-level solutions to resolve security requirementsSupport the Government in the enforcement of the design and implementation of trusted relationships among external systems and architecturesProvide expert guidance and work product evaluation to one or more security engineers that support Engineering teams for the design, development, implementation, evaluation, and/or integration of secure networking, computing, and enclave environmentsAdvocate and recommend system-level solutions to resolve security requirements. Monitors and suggests improvement to IA policyInteract with customers, IT staff, and high-level corporate officers to define and achieve required IA objectivesProvide the Government assistance to ensure that the architecture and design of information systems are functional and secure, including program of record systems and special purpose environments with platform IT interconnectivityClearance Required: Active TS/SCI with Polygraph. Must be US CitizenQualifications:Twenty (20) years’ experience as an ISSE on programs and contracts of similar scope, type, and complexity is required.Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is required.DoD 8570 compliance with IASAE Level 3 is required.A Master’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline may be substituted for two (2) years of experience, reducing the requirement to eighteen (18) years of experience. Four (4) years of additional ISSE experience may be substituted for a bachelor’s degree.Original Posting Date:2024-04-19While 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 $144,300.00 - $260,850.00The 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.