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Sr Principal Cyber Systems Engineer (Networking)

Northrop Grumman

United States-Texas-San Antonio, US$114k – $171konsite

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About this role

RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Top Secret

TRAVEL: Yes, 25% 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.

Northrop Grumman Mission Systems is a trusted provider of mission-enabling solutions for global security.  Our Engineering and Sciences (E&S) organization pushes the boundaries of innovation, redefines engineering capabilities, and drives advances in various sciences. Our team is chartered by providing the skills and innovative technologies to develop, design, produce and sustain optimized product lines across the sector while providing a decisive advantage to the warfighter.  Come be a part of our mission!

Northrop Grumman Mission Systems has an opening for a systems engineer in the cyber specialty discipline.  We are seeking a highly skilled and motivated Principal Cyber Systems Engineer or Senior Principal Cyber Systems Engineer to join our dynamic engineering team. This role involves serving on a team dedicated to the development of a new solution operating in a multi-level security environment. The position requires expertise in Cyber Systems Engineering along with some networking experience.

The qualified applicant will become part of Northrop Grumman’s Mission Systems support team in San Antonio, TX .

**This position may be filled by either at the Principal Cyber Systems Engineer level OR at the Sr. Principal Cyber Systems Engineer level based on the qualifications listed.**

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 100% on-site.

What you’ll get to Do: Join a multi‑disciplinary team designing and securing a launch execution network - a complex, multi‑enclave launch and missile test environment. As a cyber‑strong systems engineer with solid networking skills, you will own the security architecture and RMF/ATO posture for networked systems, shaping controls, documentation, and automation that keep mission systems both secure and available. This role is on‑site full‑time in San Antonio, TX and requires an active TS and SCI eligibility. • Work with customer ISSMs/ISSOs and other stakeholders to develop, document, and implement changes in environments operating under, or seeking, an ATO/IATT in accordance with DoD RMF. • Serve as a cyber systems engineer on a multi disciplinary team, collaborating closely with network, systems, software, and test engineers to design and secure complex, multi enclave launch and test networks (classified and unclassified). • Review and influence network architectures and detailed designs (routing, switching, VPN/IPsec, segmentation, boundary defenses) from a cybersecurity perspective , ensuring baked in protections and RMF compliant control implementations. • Support the design, planning, configuration, and sustainment of enterprise scale network communications and security services, producing and maintaining engineering artifacts such as security and network diagrams, configuration baselines, and implementation plans. • Provide cybersecurity systems engineering guidance and oversight to implementation teams, including secure configuration of Microsoft and Linux systems, network devices, and enclave services (e.g., logging/monitoring, KMS/PKI, endpoint protection). • Plan and support end to end testing of security and network designs, validate configurations, and monitor performance to ensure reliability, resiliency, and compliance with security policies and RMF control objectives. • Support vulnerability management activities (scanning, analysis, remediation planning, and compensating controls) in mission critical environments with constrained maintenance windows. • Leverage automation and scripting (e.g., Python, PowerShell, Ansible, Terraform) to implement and enforce secure configurations, generate compliance evidence, and streamline recurring cyber engineering tasks. • Perform or oversee physical layer installation tasks (e.g., fiber, patch panels, encryption devices) as needed to support secure infrastructure builds and changes. • Produce periodic status reports, risk/issue summaries, and engineering change documentation; clearly communicate technical options, risks, and trade offs to both technical and non technical stakeholders, including customer representatives.

Note: This position can be filled at the Principal or Sr. Principal level.

Basic Qualifications for a Principal Cyber Systems Engineer: • Bachelor’s degree in a Science in a STEM discipline from an accredited institution and 5 years of related experience in engineering; or a Master’s degree in a STEM discipline and 3 years of related experience; or a Ph.D. in a STEM discipline and 1 year of related experience. • US Citizenship is required • Active, current DoD Top Secret security clearance and SCI eligibility • DoD 8570 IAT Level II certification (e.g., Security+ CE) or equivalent prior to start. • Hands‑on experience as a cyber/security engineer or cyber systems engineer for complex networked systems (preferably DoD or similar) • Experience applying the Risk Management

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