Subject Matter Expert (Secure the Enterprise)
Amentum Holdings, Inc. · Maryland
📍 US-MD-Linthicum💰 $220,000 - $250,000via workdayFirst listed here 2026-08-02
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Amentum is seeking a Subject Matter Expert (SME) 3 for a prime contract.
Essential Responsibilities:
Serve as Lead Technical Advisor for the Secure the Enterprise (STE) and Zero Trust (ZT) initiatives, working one-on-one with the Government Division Chief and Technical Director and Deputy Authorizing Official to advise on STE/ZT strategies, policies, and performance
Brief the Chief Information Security Officer and Chief Information Officer on STE data, trends, updates, and changes
Serve as the highest level of STE technical support to the security community
Converse, analyze and advise on STE areas of concern to include Transport Layer Security (TLS) versions and cipher suites, Network Flow data (NetFlow and its variants), configuration of network devices, audit data logs (syslog and variants) collection and analysis, user activity monitoring, and other technical areas
Assist system personnel across the enterprise to maintain the appropriate operational security posture in accordance with STE compliance regulations, policies and playbook guidance for their assigned systems, programs, and/or enclaves
Provide guidance and technical expertise on all STE requirements that impact or affect the security compliance of the information system
Assist in the development and execution of an enterprise level STE compliance program that facilitates RMF continuous monitoring to minimize security risks and ensure compliance with that program on a routine basis.
Manually review submitted evidence and justifications for manual compliance validations, determinations of applicability and exceptions for all STE security controls
Based on your review, make recommendations to leadership for approval or rejection of requests for exceptions from STE security requirements
Based on your review and written guidance, approve, or reject requests for manual validation or determination of applicability
Work with information system personnel to troubleshoot and correct rejected requests for manual compliance validation, determinations of applicability and exceptions
Review automated STE compliance data for errors or inconsistencies and report findings to leadership
Assess the effectiveness of general IT and specific STE security controls on an ongoing basis to determine the STE program’s effectiveness
Maintain, develop, and enforce STE security policies, implementation guidelines and customer training for information system personnel in diverse operational environments
Coordinate with software developers to recommend changes, develop system requirements, and test new implementations
Minimum Requirements (Knowledge, Skills, and Abilities):
Demonstrate a high-level of independent thought, action and judgement
Demonstrate a high-level of problem solving and solution development to include designing and developing full-stack data analysis solutions in Python and Django in a Linux server environment, and ability to maintain current applications
Self-motivated, independent, detail-oriented, responsible team player
Experience briefing and working with the highest levels of government agency leadership
Ability to develop cross-organization and interagency relationships and maintain them over time
A working knowledge of the security authorization processes and procedures as defined in the RMF in NIST SP800-37
Knowledge of cloud architecture and cloud service providers
Knowledge of Customer enterprise tools and solutions.
Ability to effectively communicate with customers of various skill levels to resolve compliance issues
Ability and willingness to perform deep dive analysis on customer issues to resolve their compliance challenges
Knowledge of a broad spectrum of commercial security tools and their uses
Experience with hardware/software security implementations
Knowledge of different communication protocols, encryption techniques/tools, and PKI and authorization services.
Familiarity with security incident management, experience collaborating with Incident Response Teams, and able to provide viable recommendations for the resolution or computer security incidents and vulnerability compliance.
Experience creating and presenting documentation and management reports.
Clearance Required: TS/SCI
Minimum Education:
A master’s degree plus twelve (12) years
Or a bachelor’s degree plus fourteen (14) years of related work experience
Minimum Years of Experience:
Twelve (12) years of experience with System Security or related customer-interfacing technical lead position.
Two (2) years technical project leadership experience.
Master's of Science (MS) degree in Computer Engineering, Computer Science, Computer Forensics, or related field from an accredited college or university.
In lieu of a MS degree, a Bachelor of Science (BS) degree in Software Engineering, Computer Engineering, Computer Science, Computer Forensics, or related field, and an additional two (2) years of System Security experience may be substituted for a total of fourteen (14) years of experience.
Preferred Qualifications:
Familiarity the Secure the Enterprise program and the Zero Trust Initiative
Experience working in a help desk environment with the ability to maintain professionalism under strenuous circumstances
Should be committed to continuous learning and system development because of the constant developing nature of cyber attacks
The ability to quickly learn new concepts, data formats, software and operating environments
Advanced knowledge of Microsoft Office products, especially the ability to create formulas in Excel spreadsheets to perform data analysis tasks and professional presentations in PowerPoint.
Competency in Visual Basic for Applications (VBA)
Familiarity with the ICD503, CNSSI1253, SP800-53, etc.
Compensation Details:
$220,000 - $250,000
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what th
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