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Salary
$143k – $197k per year
Location
In office (Englewood)
Seniority
Senior · 12+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Aug 31, 2026. Sierra Nevada Corporation scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Sierra Nevada Corporation is a privately held American aerospace and defence contractor founded in 1963 and bought in 1994 by Fatih and Eren Ozmen, who still own it. It modifies and integrates special mission aircraft for the United States military and allied governments, builds navigation, communications and electronic warfare systems, and holds the contract to convert Boeing 747 airframes into the next presidential aircraft under the Survivable Airborne Operations Center programme. Headquartered in Sparks, Nevada, the company spun out its space business as Sierra Space in 2021 and remains one of the larger privately owned defence integrators in the country.
The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS tailors solutions to customer cost, performance, and schedule requirements and designs to consistently exceed expectations - with an unrivaled record of on time and on (or under) budget deliveries.

SNC has led thoughtful and disruptive change in the aerospace and defense industry for the past 60 years and now, we’re applying this tenacity and expertise to the U.S. Air Force’s (USAF) Survivable Airborne Operations Center (SAOC) mission. Join the SNC-led SAOC team and be a part of exciting and meaningful work to modernize and deliver the next-generation SAOC aircraft trusted by the President, Secretary of Defense and Chairs of the Joint Chiefs of Staff to ensure continued critical command, control and communication during national emergencies. If you’re passionate about building the airborne command post of the future, consider SNC for your next mission. Learn more about NC3 and SAOC here.

If you like solving complex IT and security problems using your deep analytical skills, this is the opportunity for you! As a Senior Systems Security Engineer, you will lead the design and implementation of our security infrastructure. You will manage complex security projects, provide strategic direction for security practices, and mentor junior engineers.

Responsibilities:

  • Lead the design and implementation of secure IT infrastructure.
  • Perform advanced security monitoring and threat analysis.
  • Direct and manage complex incident response and digital forensics.
  • Conduct in-depth risk and vulnerability assessments.
  • Develop and enforce comprehensive security controls and protocols.
  • Research, evaluate, and recommend new security technologies.
  • Oversee security breach documentation and impact analysis.
  • Provide mentorship and guidance to junior security engineers.
  • Build and harden Windows virtual machines, Active Directory domains, and hypervisors using strict security baselines and best practices.
  • Maintain the security of the Active Directory forest, including managing trust relationships, domain controllers, and certificate services (PKI).
  • Create, test, and deploy strict Group Policy Objects (GPOs) to enforce security settings across all Windows servers and workstations.

Qualifications You Must Have:

  • Bachelor's degree in Systems Security, Network Engineering, Information Technology, or related Engineering discipline.
  • 8+ years of experience in IT security or a related field.
  • Relevant experience can be considered as a substitute for the required educational qualifications. In the absence of a degree, a minimum of 12 years of related experience is required.
  • Higher level relevant degree may substitute for experience.
  • Expert understanding of cybersecurity principles and practices.
  • Experience with security frameworks and standards such as National Institute of Standards and Technology (NIST), ISO 27001.
  • Current/Active Top Secret U.S. Security Clearance is required.

Qualifications We Prefer:

  • Information Systems Security Engineer Certified Authorization Professional (ISSE CAP), Certified Information Systems Security Professional (CISSP), or Certified Information Security Manager (CISM) Certification.
  • Information System Security Officer (ISSO) Security+, Certified Information Systems Auditor (CISA), or CompTIA Advanced Security Practitioner (CASP+) Certification.
  • Microsoft Certified Solutions Expert (MCSE), Linux, and/or Cisco Certified Network Professional (CCNP) Security Certification.
  • Experience with security tools such as firewalls, intrusion detection systems, and antivirus software.
  • 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.

Estimated Starting Salary Range: $143,487.14 - $197,294.82. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled.

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 industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Learn more about the background check process for Security Clearances.

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employmentdecisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.

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