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Senior Security Systems Engineer - Clearance Required Security Clearance

Job in Dahlgren, King George County, Virginia, 22448, USA
Listing for: Cydecor
Full Time position
Listed on 2026-01-24
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
  • Engineering
    Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Position: Senior Security Systems Engineer - Clearance Required with Security Clearance
Cydecor is a premier Federal Government solutions provider, delivering differentiated innovations in mission systems and business platforms. We leverage leading-edge secure systems and software development, backed by industry-leading subject matter expertise, and business intelligence to enable decision-support and remain ahead of ever-evolving national security challenges. Our success rests squarely on three bedrock principles:
People, our center of gravity;
Mission, what inspires us; and an unyielding commitment to Excellence, what separates us.

Job Description:

Cydecor is seeking a Senior Security Systems Engineer to support cybersecurity and systems engineering for U.S. Naval warfare systems. The ideal candidate will lead complex Assessment and Authorization (A&A) efforts, develop secure architectures, and ensure compliance with DoD cybersecurity policies and Risk Management Framework (RMF) standards. This position involves working closely with engineering teams to safeguard mission-critical systems, evaluate vulnerabilities, and deliver validated cybersecurity solutions.

Responsibilities include:

* Author DoD Assessment and Authorization (A&A) artifacts.
* Document systems from a cybersecurity perspective using Microsoft Office tools, including MS Word, Excel, and Visio.
* Derive, document, and/or identify system Concept of Operations (CONOPS) for Mission Assurance Categorization in accordance with DoDI 8500.2.
* Lead the research, recommendation, and documentation of logical and physical solutions that prevent, detect, and correct vulnerabilities in systems to be certified and accredited.
* Research and apply Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) and National Security Agency (NSA) recommendations.
* Identify and resolve discrepancies between system specifications, security requirements, and DoD security policies to achieve compliance.
* Plan, develop, execute, and document results of cybersecurity test procedures.
* Analyze and test Naval warfare systems against known vulnerabilities using current hacker techniques and exploits.
* Serve as the Information Assurance Officer (IAO) and focal point for all security matters related to assigned information systems.
* Prepare and execute Information Assurance Vulnerability Management (IAVM) Plans.
* Develop and maintain the System Security Administrator and Operators Manual (SSAOM).
* Lead the effort to obtain Authorization to Operate (ATO) and resolve findings related to Interim Authorization to Operate (IATO).
* Provide technical expertise for system security requirements, risk assessments, and compliance verification. Here's what you need:

* Experience:

* 7+ years Submarine-Launched Ballistic Missile (SLBM) experience and prior experience using the SSP Validator handbook.
* OR
* 5 years program specific security engineering experience working with Navy afloat/tactical combat systems.
* OR
* 10 years general security engineering experience.
* Comprehensive understanding of computer security, military system specifications, DoD cybersecurity policies, and System Security Plan (SSP) CSSE.
* Strong written and verbal communication skills.
* Experience executing all aspects of the Systems Engineering Technical Review (SETR) process.
* Proficiency with Risk Management Framework (RMF), Platform IT (PIT), and implementation of cybersecurity and boundary defense technologies (Firewalls, IDS/IPS, Routers/Switches, Cross Domain Solutions, HBSS, etc.).
* Demonstrated experience developing secure network architectures, engineering documentation, and applying Model-Based Systems Engineering (MBSE) principles.
* Minimum of 5 years engineering experience on Aegis, Ship Self-Defense System (SSDS), Zumwalt, or other Navy afloat tactical combat systems.
* Must hold or be able to obtain IAM/IAT Level II certification or higher.
* Privileged Users must have IT-1 designation with a final adjudicated T-5 investigation, and complete OS/Computer Environment (CE) training within six (6) months of hire. Security Clearance:
* Active Top Secret or higher required (SCI eligibility preferred).
* Those supporting SLBM…
Position Requirements
10+ Years work experience
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