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Senior Cybersecurity Systems Engineer with Security Clearance

Tharros Defense, Inc.Dahlgren, VA🇺🇸United StatesPosted 18 Aug 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job Description Tharros is seeking a Senior Systems Engineer specializing in Cybersecurity Systems to support NSWCDD in Dahlgren, VA. These engineers provide senior-level Cybersecurity systems engineering expertise for weapon contr ol systems and surface combat, contr ol, and situational awareness systems throughout the full system lifecycle.

The position requires a strong understanding of cybersecurity systems engineering, system security architecture, risk management, configuration management, technical documentation, security assessment and authorization processes, and the operational environments in which complex mission and information systems are deployed.

Projects include cybersecurity engineering support across the system lifecycle, including security requirements development, risk and vulnerability assessment, RMF implementation, system hardening, security contr ols integration, configuration and change management, and cybersecurity compliance for mission-critical systems and supporting infrastructure. Requirements

  • Lead cybersecurity systems engineering across the total system lifecycle for Navy weapon, combat, and fire contr ol systems, including development, modernization, integration, certification, and deployment.
  • Translate operational, mission, and system requirements into cybersecurity requirements, security architectures, system security specifications, and engineering documentation.
  • Lead and support Navy/DoD security certification and authorization activities, including RMF, PIT cybersecurity processes, DIACAP/predecessor frameworks, and applicable DoD and Navy cybersecurity requirements.
  • Engineer and integrate security contr ols and cybersecurity capabilities into mission-system architectures, including GOTS, COTS, and interconnected technologies.
  • Assess system modifications, interfaces, engineering changes, and ECPs for cybersecurity risk, vulnerabilities, security contr ol impacts, and mission assurance considerations.
  • Conduct and support risk assessments, technical trade studies, vulnerability analysis, security engineering assessments, cybersecurity testing, verification and validation, shipboard integration, and fleet deployment activities.
  • Participate in technical design reviews, configuration contr ol boards, cybersecurity working groups, risk reviews, and certification/authorization activities, providing cybersecurity engineering expertise to program and technical stakeholders.
  • Coordinate with engineering, cybersecurity, program leadership, and government stakeholders to ensure cybersecurity is incorporated into system design and engineering decisions.
  • Provide technical leadership and mentorship to engineers supporting cybersecurity, systems engineering, RMF, and mission-system security activities. Requirements
  • Active TS/SCI
  • Bachelor of Science degree in an engineering, scientific, cybersecurity, computer science, or related technical discipline with at least eight (8) years of relevant experience; or ten (10) years of demonstrated subject matter expertise in applicable technical disciplines.
  • CISSP certification meeting applicable DoD 8140.03 workforce qualification requirements.
  • 5+ years of experience leading systems engineering and/or mission engineering efforts for software-intensive systems, including requirements development, top-level system design, and system architecture.
  • 8+ years of professional systems/cybersecurity engineering experience, including specialized experience supporting Navy/DoD security certification and authorization of major weapon, combat, and/or fire contr ol systems.
  • Demonstrated knowledge of DoD/Navy cybersecurity requirements, RMF, PIT cybersecurity processes, security contr ols, vulnerability and risk management, configuration management, cybersecurity testing, and mission-system security engineering.

Summary Tharros combines extensive cyber defense knowledge with the world's preeminent vulnerability expertise to identify and defend against attacks before they become problems. Working at mission speed, we harden mission systems faster and secure them for longer, so agencies never lose the mission edge. Tharros lifts the veil of enterprise cybersecurity to detect zero days before they affect you, enabling mission maneuverability and the confidence to move missions forward.

In the ever-evolving realm of cyberspace, we are dedicated to becoming the paramount defender in the 5th warfighting domain. By pioneering innovative security solutions and fostering an environment of continuous learning and vigilance, we aim to protect the interests of our nation's security. Our commitment to excellence in cybersecurity will establish new benchmarks, transforming the digital landscape into a secure and thriving frontier for future generations. Tharros. See Everything. Secure Anything. Tharros is committed to hiring and retaining a diverse workforce.

We are proud to be an Equal Opportunity/Affirmative Action Employer and make employment decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected status.

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