Sr. Principal Cyber Systems / Network Engineer

Posted 2 Days Ago
Be an Early Applicant
Fairfax, VA, USA
In-Office
156K-235K Annually
Senior level
Aerospace • Logistics • Security • Software • Cybersecurity
The Role
Provides Tier-2 and Tier-3 support for mission-critical network infrastructure. Responsibilities include network monitoring, maintenance, upgrades, troubleshooting, STIG implementation, security remediation, RMF and ATO support, system integration, and technical documentation. The engineer collaborates with developers, testers, and specialty engineering teams while supporting secure mission systems, analyzing infrastructure, recommending improvements, and resolving break-fix events.
Summary Generated by Built In
RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Polygraph

TRAVEL: Yes, 10% of the TimeDescription

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.

Join Northrop Grumman on our continued mission to push the boundaries of possible across land, sea, air, space, and cyberspace. Enjoy a culture where your voice is valued and start contributing to our team of passionate professionals providing real-life solutions to our world’s biggest challenges. We take pride in creating purposeful work and allowing our employees to grow and achieve their goals every day by Defining Possible. With our competitive pay and comprehensive benefits, we have the right opportunities to fit your life and launch your career today.


At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to enable strategic planning. We’re looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we’ll support you expanding your personal network and developing skills, whether you are new to the field, or an industry thought leader. At Northrop Grumman, you’ll have the resources, support, and team to do some of the best work of your career.


Northrop Grumman Mission Systems is seeking a candidate to join our diverse team of engineers, system administrators, and operators as a Sr. Principal Cyber Systems / Network Engineer professional in Chantilly, VA.  The successful candidate will be expected to monitor, maintain, and provide Tier-2 and Tier-3 support of a mission critical network infrastructure, collect data for analysis, perform network upgrades, and be able to produce documentation and diagrams of the work they perform.  The work is unique, challenging and rewarding. Most of all, its work that makes a difference.


The successful candidate should thrive in a fast-paced, quick response, work environment with high expectations, diverse assignments, and possess the ability to communicate and collaborate with multiple teams across all technical levels. The candidate must be able to lead the way to maintain and develop creative solutions to complex problems.


Responsibilities:

  • Provide Engineering and Administrative support onsite for a team of developers and testers, often deviating from industry standard procedures to meet mission needs but maintaining system security standards.
  • Develop, implement, and support solutions for systems that support mission critical and mission essential infrastructure.
  • Analyze existing systems & networks and make proactive recommendations to drive change and create efficiencies.
  • Collaborate with mission system developers to create and deploy solutions in support of customer mission needs.
  • Maintain, evaluate, test, and apply STIG configurations for network devices.
  • Respond to security findings and Break Fix events across the infrastructure.
  • Create and maintain network documentation including but not limited to Standard Operating Procedures and VISIO diagrams.

Senior Principal Cyber Systems / Network Engineer Basic Qualifications:

  • Must have an active TS/SCI with Polygraph to be considered.
  • 8 Years with Bachelors Degree; 6 Years with Masters; 4 Year with PhD; 12 years of experience in lieu of a degree.
  • Experience troubleshooting technical issues based on OSI model.
  • Experience making ethernet cables, pulling fiber, racking equipment.
  • Basic understanding of Cisco CLI commands
  • Experience with Risk Management Framework (RMF) and Authority to Operate (ATO) process
  • Experience working in an integrated team environment with other systems, software and specialty engineers to develop solutions.

Preferred Qualifications:

  • Understanding of dynamic routing protocols
  • Firm understanding of Juniper JunOS commands and or firewall concepts
  • Previous experience troubleshooting network procedures and best practices; experience with network challenges associated with systems integration, including COTS integration, and capacity analysis.
  • Experience with Linux and Windows operating systems
  • Experience with virtualization technologies (e.g., Red Hat KVM, VMware, libvirt/virsh, Docker, and Kubernetes)
  • Previous experience contributing to building ATO packages
  • Experience working in Agile and O&M environments.

Primary Level Salary Range: $156,400.00 - $234,600.00

The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.

Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.

The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.

Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Skills Required

  • Active TS/SCI with Polygraph clearance
  • Eight years of experience with a bachelor's degree, six years with a master's degree, four years with a PhD, or twelve years in lieu of a degree
  • Experience troubleshooting technical issues using the OSI model
  • Experience making Ethernet cables, pulling fiber, and racking equipment
  • Basic understanding of Cisco CLI commands
  • Experience with the Risk Management Framework and Authority to Operate process
  • Experience working in integrated teams with systems, software, and specialty engineers
  • Understanding of dynamic routing protocols
  • Understanding of Juniper JunOS commands or firewall concepts
  • Experience troubleshooting network procedures, systems integration, COTS integration, and capacity analysis
  • Experience with Linux and Windows operating systems
  • Experience with virtualization technologies including Red Hat KVM, VMware, libvirt/virsh, Docker, or Kubernetes
  • Experience contributing to ATO packages
  • Experience working in Agile and operations and maintenance environments

Northrop Grumman Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.

  • Healthcare Strength — Health coverage offers multiple medical plan options by region alongside dental, vision, mental‑health resources, and wellness programs. Recent materials also highlight added family‑building support, including a dedicated fertility benefit.
  • Retirement Support — The 401(k) savings plan is positioned as competitive with a company match, auto‑escalation features, and access to an employee stock fund/ESPP. Official filings and benefits guides emphasize retirement as a core element of the Total Rewards package.
  • Leave & Time Off Breadth — Many sites offer a 9/80 schedule, generous PTO, paid holidays, and flexible/telework options where program needs allow. Paid parental and caregiver leave are prominently featured, with recent enhancements for the delivering parent.

Northrop Grumman Insights

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The Company
HQ: Charlotte, North Carolina
85,636 Employees

What We Do

We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.

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