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Senior Security Systems Engineer - Clearance Required

Cydecor
dental insurance, life insurance, paid time off, 401(k)
Nov 17, 2025

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 and/or Navy Qualified Validator (NQV) certification, as appropriate.
  • 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).
  • Any Validator supporting SLBM must also possess TS with SCI eligibility.

Education:

  • Bachelor's degree

Work Schedule:

  • Hybrid, Monday - Friday, 8 hours each day. Likely the work will be mostly remote.
  • Position is primarily remote, with potential on-site requirements as needed.

Compensation and Benefits:
Cydecor offers a comprehensive compensation package including Health and Dental Insurance, Vision and Life Insurance, Short-Term & Long-Term Disability, 401(K) + company match, Paid Time Off (PTO), Paid Company Holidays, Tuition and Professional Development Assistance and more.

What We Believe
We have an unwavering commitment to diversity with the aim that every one of our people has a full sense of belonging within our organization. As a business imperative, every person at Cydecor has the responsibility to create and sustain an inclusive environment.

Equal Employment Opportunity Statement
Cydecor is an Equal Employment Opportunity/Affirmative Action Employer (EEO/AA). All employment and hiring decisions are based on qualifications, merit, and business needs without regard to race, religion, color, sexual orientation, nationality, gender, ethnic origin, disability, age, sex, gender identity & expression, veteran status, marital status, or any other characteristic protected by applicable law.

If you are a qualified individual with a disability and/or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to access job openings or apply for a job on this site because of your disability. You can request assistance by contacting HR@cydecor.com or calling 703-884-2105.

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