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Sr. Systems Engineer 3

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Onsite

Sr. Systems Engineer 3

Reflexive Concepts

Sr. Systems Engineer 3

Skills

Cybersecurity

1 month ago

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Important information


Contract type:

Permanent

Location:

Linthicum Heights, MD, USA

Work mode:

Onsite

Published on:

25 September 2026

What they need


Reflexive Concepts is seeking a skilled Senior Systems Engineer to join our team! In This Role You Will

  • 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 principles 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 cybersecurity considerations.
  • As a technical leader, Sr. Systems Engineers will report to you directly; ensure they are fully utilized, their best skillset is being used, and encourage them to exceed technical performance expectations. Participate in building a strong team with depth in the systems 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.

Required Qualifications:

  • Minimum 12 years of Systems Engineering experience
  • High School Diploma + 12 years of Systems Engineering experience; a relevant Bachelor's degree in a STEM field + 8 years of Systems Engineering experience; or a relevant Master's degree in a STEM field + 6 years of Systems Engineering experience
  • Relevant BS degree in a STEM field
  • Active TS/SCI with Full-Scope Polygraph (CI within 6 years)
  • Zero Trust experience

Desired 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

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