Sr Systems Security Engineer with Security Clearance
Job in
Beavercreek, Greene County, Ohio, USA
Listed on 2026-08-19
Listing for:
Sierra Nevada Corporation
Full Time
position Listed on 2026-08-19
Job specializations:
-
IT/Tech
Cybersecurity, Network Security, Information Security & Data Protection, Systems Engineer
Job Description & How to Apply Below
The MST team has a long legacy of supporting the Department of Defense, Department of Homeland Security, commercial and international customers with years of experience in platform operations, engineering and full lifecycle management across domains - air, land, sea, space and cyber. Responsibilities:
* Lead the design and implementation of secure IT infrastructure.
* Perform advanced security monitoring and threat analysis.
* Develop and enforce comprehensive security controls and protocols.
* Research, evaluate, and recommend new security technologies.
* Manage mandatory Information System (IS) patching, updating, and scanning based on vulnerabilities and threats or regulatory compliance.
* Maintain the day-to-day security posture and continuous monitoring for systems under your purview.
* Interface with company and customer staff at multiple levels and provide system security guidance. Qualifications You Must Have:
* Bachelor's degree in Systems Security, Network Engineering, Information Technology, or related discipline and typically 8 years of experience in IT security or a related field.
* Relevant work experience as an ISSO, ISSE, Network Analyst/Administrator/Engineer, Systems Analyst/Administrator/Engineer, IT Analyst/Administrator, Software Engineer, etc., may substitute for required education.
* Proficiency administering Linux and Windows operating systems.
* Experience configuring and supporting Cisco or Juniper networking devices.
* Experience supporting information systems within a classified environment.
* Experience working with security control assessment and vulnerability scanning tools like Nessus and SCAP Compliance Checker.
* Must be a US Citizen.
* An active Top Secret U.S. Security Clearance with SCI eligibility is required for hire.
* Understanding of cybersecurity principles, frameworks, and best practices. Qualifications We Prefer:
* Strong understanding of DoD Security Technical Implementation Guides (STIGs) and NIST Special Publications.
* Professional certification such as ISSE CAP, CISSP, or CISM, but not required.
* Additional security or audit certifications such as Security+, CISA, CASP+/Security
X.
* Platform-specific certifications such as MCSE, Linux-related certifications, and/or Cisco CCNP Security.
* Experience with security tools, including firewalls, intrusion detection/prevention systems, and endpoint protection solutions.
* Experience in the aerospace or defense industry.
Essential Functions:
* Ability to work primarily at a computer for extended periods.
* Capability to participate in on-call rotation for incident response.
* Must be able to lift up to 25 lbs occasionally.
* Ability to work in an office or hybrid environment.
* Occasional travel may be required. This posting will be open for application for a minimum of 5 days and may be extended based on business needs. SNC offers annual incentive pay based upon performance that is commensurate with the level of the position. SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more .
IMPORTANT NOTICE:
This position requires current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for…
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