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# Sentinel - Systems Engineer/Principal Systems Engineer

- **Company:** Northrop Grumman
- **Location:** Huntsville, AL, United States
- **Salary:** $79,300.0 - $118,900.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Network Interface Controllers, Hardware Design, Integrated Development Environments, Language Modeling, Systems Development Life Cycle, Requirements Management, Requirements Traceability, SAP (Applications), Software Requirements Analysis, Systems Modeling Language, MagicDraw, DODAF
- **Published:** October 23, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8940141/sentinel-systems-engineerprincipal-systems-engineer

## About the Role

Systems Engineer (level 2):

 * Bachelor's degree in STEM and 2 years of applicable engineering experience. Master's degree and 0 years.
 * Must have an active DoD Secret clearance or higher at the time of application.
 * Must have the ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period, as determined by the company to meet its business need
 * 1+ year of experience developing or reviewing requirements within DOORS or similar tool
 * 1+ year of experience in ICBM (MMIII or Sentinel) OR complex aerospace/defense systems

Principal Systems Engineer (level 3):

 * Bachelor's degree in STEM and 5 years of related engineering experience, 3 with a masters, 1 with a PhD
 * Must have an active DoD Secret clearance or higher at the time of application.
 * Must have the ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period, as determined by the company to meet its business need
 * 2 years of experience developing or reviewing requirements within DOORS or similar tool
 * 2 years of experience in ICBM (MMIII or Sentinel) OR complex aerospace/defense systems, * Understanding of the Systems Engineering V-Model
 * Experience with requirements management tools such as DOORS
 * Experience in SysML or UPDM modeling languages
 * Proficiency with the DoDAF, UAF, or other modeling frameworks
 * Experience modeling with Cameo Enterprise Architecture, MagicDraw (No Magic, Inc.) or other architecture modeling tools
 * Experience using tools to model large systems with multiple developers
 * Experience in Software and/or Hardware design
 * Experience in documenting Interface Control Documents, Interface Requirement Specifications, and Interface Description Documents
 * Experience in the military aerospace development environment
 * Experience with weapon systems
 * Experience exporting documentation out of a model-based environment
 * Experience with Agile Development
 * Experience with ICBM weapon system sustainment engineering and integration
 * Experience with complex system development on large programs

## Description

The selected engineer will be supporting activities including use case development, requirements definition / allocation, functional decomposition, interface definition, verification & validation, and requirements traceability.

Specific duties to include, but are not limited to the following:

 * Collaborate with program IPT counterparts to develop supporting systems engineering and design artifacts.
 * Work with both technical teams and stakeholders to develop and mature architecture content of large programs design.
 * Help develop and incorporate the appropriate requirements for the system and ensure that they are properly represented in the model.
 * Develop systems architecture using Cameo Enterprise Architecture (behavioral, structural, analytical).
 * Contribute to system requirements development, management, and analysis.