> Markdown version of [/jobs/ext/3734112-senior-principal-cyber-systems-engineer](https://www.wearedevelopers.com/jobs/ext/3734112-senior-principal-cyber-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Principal Cyber Systems Engineer

- **Company:** Northrop Grumman
- **Location:** Linthicum Heights, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Cyber Security, System Configuration, Information Systems Security Architecture Professional, Systems Development Life Cycle, Systems Integration, Devsecops, Plan of Action and Milestones
- **Published:** October 14, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9240759/senior-principal-cyber-systems-engineer

## About the Role

* Bachelor's degree and 8 years of relevant experience; 6 years of relevant experience with a Master's; 4 years of relevant experience with a PhD
 * Requires an active U.S. Government TS/SCI clearance current and within scope at time of application must have willingness to sit for a polygraph
 * Direct experience developing RMF assessment and authorization documentation
 * Experience of RMF (NIST 800-37) accreditation functions, including documentation, scanning, assessment, Plan of Action and Milestones (POAM) management, and all steps of the RMF process
 * Direct experience assessing the ProgramNulls system security posture in compliance with customer requirements and directives.
 * Experience with requirements development from control listings
 * Experience with integrating Cyber Systems Engineering requirements with Program System Development Life Cycle (SDLC) initiatives
 * Experience of adjusting commercial security methodologies and technologies within sensitive and proprietary customer environments in accordance with NIST 800-53
 * Apply analytical and evaluative methods and techniques to issues or studies concerning the efficiency and effectiveness of Cybersecurity implementation
 * Direct experience of strong written and oral communication, negotiation and interpersonal skills both with internal teams, internal management and external customers
 * Experience of Department of War (DoW)/Intelligence Community (IC) System Security Engineering activities
 * Possession of Security+ Certification or Certified Information Systems Security Professional (CISSP) Certification
 * Experience working in an Agile execution framework, * Active TS/SCI with an adjudicated polygraph
 * Expertise with all aspects of Systems Security Engineering as defined in NIST SP 800-160
 * System security architecture experience
 * Experience in configuring and deploying Cross Domain Solutions (CDS)
 * Experience working with DOORS and CAMEO
 * Security related tool suites in DevSecOps pipelines
 * Experience in Communications Security (COMSEC)
 * Experience working on a multidisciplinary team and developing technical proposals.

#NoVASpace

#SpaceSysEngJobs

#SpaceEngJobs

#MorrisvilleSpace

#SPEnhancedERAP

## Description

A Cyber Systems Engineer ensures cyber protection needs 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.

As a Cyber Systems Engineer on this team, you will have the following responsibilities:

 * Support the architecture and design of baked-in cybersecurity requirements and protections
 * 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
 * Provide security considerations to inform systems engineering efforts with the objective of reducing errors, flaws, and weaknesses that may constitute security vulnerability leading to unacceptable asset loss and consequences
 * Identify, quantify, and evaluate the costs/benefits of security functions and considerations to inform analysis of alternatives, engineering trade-offs, and risk treatment decisions
 * Author, support and maintain cybersecurity program documentation & RMF package documentation: Cybersecurity Strategies, System Security Plans, Continuous Monitoring Plans, Risk Assessment Report, Security Control Traceability Matrix, Plan of Actions & Milestones, etc.
 * Apply the above CSSE responsibilities to Cross Domain Solutions (CDS) and, where required, to other specific technical areas of the system