Sentinel - Sr. Principle​/Principal Systems Engineer

Relocation and Clearance

Relocation assistance may be available. Clearance required at start:
Yes (Secret). Travel:
Yes, 10% of the time.

Northrop Grumman Strategic Deterrent Systems Division is seeking a Principal Systems Engineer / Senior Principal Systems Engineer for the Sentinel Program in Roy, UT. The role supports the full systems‑engineering life cycle and involves developing, managing, and verifying system requirements and architecture.

• Support the team across the full systems‑engineering life cycle, from use‑case development through verification.
• Collaborate closely with Integrated Product Team (IPT) counterparts to produce rigorous systems‑engineering and design artifacts.
• Define, allocate, and trace requirements and ensure they are accurately represented in the system model.
• Perform functional decomposition, interface definition, and support verification activities.
• Develop systems architecture using Cameo Enterprise Architecture, modeling behavioral, structural, and analytical aspects.
• Contribute to ongoing requirements development, management, and analysis.
• Establish unifying modeling techniques, procedures, and processes for seamless model development, tool integration, and team collaboration.

• Principal Systems Engineer level (T‑03):
  Bachelor’s Degree in a STEM discipline with 5 years related experience; 3 years with a Master’s; 1 year with a PhD.
• Senior Principal Systems Engineer level (T‑04):
  Bachelor’s Degree in a STEM discipline with 8 years related experience; 6 years with a Master’s; 4 years with a PhD.
• Active U.S. Government DoD Secret security clearance at time of application, current and within scope, with an investigation date within the last 6 years.
• Special Access Program (SAP) clearance with access to CJ1.
• 2+ years’ experience in ICBM (MMIII or Sentinel) or complex aerospace/defense systems.
• 2+ years’ experience developing and executing systems‑engineering process governance documentation in a DoD Engineering and Manufacturing Development phase.
• 2+ years’ experience creating, updating, and maintaining requirements specifications in DOORS.
• 2+ years’ experience on large‑scale/complex system development across multiple phases of a development program.
• 2+ years’ experience creating, updating, and maintaining Model‑Based Systems Engineering (MBSE) products.

• Experience with Agile.
• Familiarity with Teamcenter/CPLM.
• Experience with SE events (e.g., PDR, CDR).
• Resolving issues and providing technical support.
• Proficiency in Microsoft Word, Excel, and PowerPoint.
• Strong understanding of complex engineering systems and associated processes.

• Primary Level: $98,400.00 – $.
• Secondary Level: $ – $.
• Standard work schedule is 9/80 (nine‑hour days Monday‑Thursday with alternate Fridays off).

• Medical, Dental & Vision coverage.
• 401(k) plan.
• Educational assistance.
• Life insurance.
• Employee assistance programs & work/life solutions.
• Paid time off and health & wellness resources.
• Employee discounts.

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