Demo

Senior Cyber Systems Engineer

Cornerstone Defense
Linthicum Heights, MD Full Time
POSTED ON 10/27/2026
AVAILABLE BEFORE 11/27/2026
  • Location: Linthicum Heights, Maryland
  • Type: Contract
  • Job #4078

Title: Senior Cyber Systems Engineer
Location: Linthicum Heights, MD
Compensation Range: $195 - $215K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Core Tasks:
  • Perform cybersecurity assessments of large-scale DOD systems, utilizing an OCO (Offensive Cyber Operations) mindset to perform DCO (Defensive Cyber Operations) activities.
  • Perform long term, in depth vulnerability assessments leveraging systems engineering principals and knowledge, utilizing any available information, including architecture diagrams, build specifications, design documentation, and systems architecture
  • Perform independent verification & validation of security requirements and capabilities. Incorporating systems resiliency and security engineering concepts into acquisition documents (e.g., Performance Work Statements).
  • Perform technical evaluations of contractor proposals for systems resiliency, security, and cyber security considerations.
  • As a technical leader, Sr Systems Engineers will report to you directly. You will ensure they are fully utilized, their best skillset is being used, while encouraging them to exceed technical performance expectations. Participate in building a strong team with depth in the system engineering process and how it can be utilized in different areas within the mission space.
  • Leverage your interpersonal skills to foster relationship development with our customers to gain additional insights, information, and documentation to improve our ability to accomplish our mission

Qualifications
  • The Senior System Engineer will have minimum 12 years of System Engineering experience
  • High School Diploma: 12 years System Engineering Experience
  • Relevant Bachelor's degree: STEM field 8 years System Engineering
  • Relevant Master's degree: STEM field 6 years System Engineering
  • Relevant BS degree in STEM field
  • Zero Trust experience

Preferred Qualifications
  • Cybersecurity certification (Sec , CISSP, CEH, etc)
  • Familiarity with NIST SP 800-160
  • Familiarity with INCOSE defined life cycle systems engineering processes
  • Experience with / knowledge of large-scale DOD Systems

Salary : $195,000 - $215,000

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