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# Sentinel - Systems/Principal Systems Engineer - 18454*

- **Company:** Northrop Grumman
- **Location:** Bellevue, NE, United States
- **Salary:** $79,300.0 - $131,400.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Network Interface Controllers, Hardware Design, Integrated Development Environments, Language Modeling, Systems Development Life Cycle, Requirements Management, Software Requirements Analysis, Systems Modeling Language, SC Clearance, DODAF
- **Published:** July 22, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9048186/sentinel-systemsprincipal-systems-engineer-18454

## About the Role

This position may be hired at level 2 or level 3 depending upon applicant qualifications.

 * Bachelor's degree in STEM and 2 years of applicable engineering experience. Master's degree and 0 years.
 * Must be a US Citizen with .
 * Must be able to be successfully screened for Enhanced Security Clearances, within a reasonable amount of time as determined by the company to meet its business needs
 * 1 year of educational or employment experience reviewing requirements within DOORS or similar tool
 * Must possess excellent oral and written communication skills

 * Bachelor's degree in STEM and 5 years of related engineering experience, 3 with a masters, 1 with a PhD
 * Must be a US Citizen with
 * Must be able to be successfully screened for Enhanced Security Clearances, within a reasonable amount of time as determined by the company to meet its business needs
 * Must possess excellent oral and written communication skills
 * 2 + years of experience developing or reviewing requirements within DOORS or similar tool
 * 2 + year experience in ICBM (MMIII or Sentinel) OR complex aerospace/defense systems

*

 * 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 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

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.
 * Develop unifying model techniques, procedures, and processes (for model development, tool integration, and team integration).


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