Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. We are seeking an ISSE to join our team of passionate individuals. In this role you will support challenging, mission-critical projects that make a direct impact on the nation’s security and intelligence mission. As the Senior ISSE on a dynamic team, you will perform 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. **Responsibilities:** + 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. **Requirements:** + Fourteen (14) years of IA System Architect and Engineer (IASAE) experience, to include recent experience within the last five years, with Defense-in-Depth principles and technology, including access/control, authorization, identification and authentication, Public Key Infrastructure (PKI), network and enterprise security architecture + A Master’s Degree in Computer Science or IT Engineering is desired and may be substituted for six (6) years of experience + Two years of experience applying security risks assessment methodology to system development, including threat model development, vulnerability assessments, and resulting security risk analysis + Knowledge of Federal, NS A, IC, and DoD Information Security regulations, publications, and policy + This is a CWIP Billet per DoD Directive 8570-1 and must meet specified certification requirements defined and documented by the TTO COR. IASAE + Level III (CISSP-ISSAP or CISSP-ISSEP) Certification **Clearance Required:** + Active TS/SCI with Poly \#javelin Pay Transparency Verbiage Amentum’s health and welfare benefits are designed to invest in you and in the things you care about. Your health. Your well-being. Your security. Your future. Eligible employees and their dependents may elect medical, dental, vision, and basic life insurance. Employees are able to enroll in our company’s 401k plan, and, if eligible, a deferred compensation plan and Executive Deferral Plan. Employees will also receive 17 days of vacation per year, seven paid holidays, plus floating holidays and caregiver leave. Hired applicants will be able to purchase company stock and have the opportunity to receive a performance discretionary bonus. The base salary range for this position is $210K to $230K. This range reflects the minimum and maximum target for new hire salaries for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.