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Principal​/Sr Principal Cyber Systems Engineer Security Clearance

Remote / Online - Candidates ideally in
San Antonio, Bexar County, Texas, 78202, USA
Listing for: Northrop Grumman
Full Time, Remote/Work from Home position
Listed on 2026-06-18
Job specializations:
  • Engineering
    Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Position: Principal / Sr Principal Cyber Systems Engineer with Security Clearance
RELOCATION ASSISTANCE:
No relocation assistance available CLEARANCE REQUIRED FOR START:
Yes CLEARANCE TYPE:
Secret TRAVEL:
Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon.

We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

We are looking for you to join our team as a Principal or Senior Principal Cybersecurity Systems Engineer (CSSE) based out of San Antonio, TX. Our team is a collaborative group of engineers who value technical excellence, clear communication, and diverse perspectives. We work closely across disciplines to solve complex mission challenges and support one another through mentorship, knowledge sharing, and continuous learning.

We take pride in building a supportive environment where engineers at all levels can grow, contribute meaningfully, and develop long term careers in national security.

Please Note:

Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site. What You'll get to Do: A Cybersecurity Systems Engineer (CSSE) ensures cyber survivability attributes are implemented in system designs as it assesses/evaluates the customers'/stakeholders' cybersecurity requirements to decompose, derive, and refine the system's cybersecurity requirements at all levels to drive the built-in cybersecurity protections to the architecture and design.

The CSSE also guides/supports the security layout / architecture and influences the security tools selection and development. The CSSE evaluates/assesses the proposed and realized implementations to identify security risks, attack surface, and verify the cybersecurity protections from the design are realized and integrated. The CSSE guides/supports the development of verification efforts to ensure the cybersecurity protections / capabilities are functional, effective, and complete.

A CSSE supports the definition of security governance, and risk management. The selected candidate will be required to work on-site, full-time at our San Antonio, TX site. The individual will perform the following duties on a day-to-day basis in support of the program:
* Implement and review cyber requirement decomposition, derivation, and flow down

* Implement and review traceability of cyber requirements throughout a spec tree architecture

* Support the architecture and design of baked in cybersecurity requirements and protections

* Implement and review traceability of cyber requirements to the design & its models

* Implement and review the application of cyber security profile stereotypes to a Model Based System Engineering (MBSE) Architecture

* Provide cybersecurity system engineering implementation guidance and oversight to technical teams/implementers

* Review and Assess stakeholder security objectives, protection needs and concerns, security requirements, and associated verification/validation methods

* Implement, review and assess cybersecurity system requirements verification/validation methods

* Identify and/or assess vulnerabilities and susceptibility to life cycle disruptions, hazards, and threats

* Provide security considerations to inform systems engineering efforts with the objective to reduce errors, flaws, and weakness that may constitute security vulnerability leading to unacceptable asset loss and consequences

* Identify, quantify, and evaluate the costs/benefits of security functions and…
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