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# Sentinel Principal/ Sr. Principal Systems Engineer

- **Company:** Northrop Grumman
- **Location:** Huntsville, AL, United States
- **Experience:** Expert
- **Salary:** $108,800.0 - $163,200.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Confluence, JIRA, Databases, Object-Oriented Software Development, Software Requirements Analysis
- **Published:** October 30, 2026
- **Apply:** https://www.careerjet.com/job/uscced7bfa5c3b008c54d1c616df700aea/eaa

## About the Role

* Bachelor's Degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university with 5 years of related experience, 3 years with Masters, 1 year with PhD.
 * 1+ year experience in team environments with technical leadership responsibilities
 * 2+ years' experience in Intercontinental Ballistic Missiles (ICBMs) (Minuteman III (MMIII) or Sentinel) OR complex aerospace/defense systems.
 * 2+ years' experience in developing and executing Systems Engineering (SE) process governance documentation in a Department of Defense (DoD) Engineering and Manufacturing Development (EMD) phase.
 * 2+ years' experience in creating, updating, and maintaining requirements specifications in Dynamic Object-Oriented Requirements System (DOORS).

Sr Principal Engineer Systems:

 * Bachelor's Degree in a STEM discipline from an accredited university with 8 years of related experience, 6 years with Masters, 4 years with PhD.
 * 3+ years' experience in team environments with technical leadership responsibilities.
 * 5+ years' experience in ICMBs (MMIII or Sentinel) OR complex aerospace/defense systems.
 * 5+ years' experience in developing and executing SE process governance documentation in a DoD EMD phase.
 * 5+ years' experience in creating, updating, and maintaining requirements specifications in DOORS.

Required for Both Levels:

 * Must have an 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
 * 2+ years' experience in ICBM (MMIII or Sentinel) OR complex aerospace/defense systems.
 * 2+ years' experience in developing and executing Systems Engineering process governance documentation in a DoD Engineering and Manufacturing Development phase.
 * 1+ years' experience in team environments with technical leadership responsibilities.
 * 2+ years' experience in creating, updating, and maintaining requirements specifications in DOORS., * ICBM Experience (MMIII or Sentinel).
 * Experience with Agile, JIRA, Confluence.
 * Proficiency in DOORS including DXL scripting
 * 3+ years' experience writing requirements and/or verification plans.
 * Capable of working with minimal direction and in team environments.
 * Experience working with internal and external teams to accomplish tasking.
 * Strong oral and written communication skills, including demonstrated experience with high value customer presentations, with ability to focus on multiple projects with competing priorities.

## Description

The selected Principal Systems Engineer, as part of the Sentinel Logistics Support team, will be assigned to support the Logistics System Capability Thread. This role provides a great growth opportunity for an individual interested in developing into a technical leadership role.
Specific duties include, but are not limited to the following:

 * Collaborate with program IPT counterparts to develop rigorous and proper systems engineering and design artifacts.
 * Mange and optimize database for Dynamic Object-Oriented Requirements System (DOORS) tools.
 * Work with technical teams and stakeholders to develop and mature WS design of a large program.
 * Help develop and incorporate the appropriate requirements for the system and ensure that they are properly represented in the model.
 * Contribute to system requirements development, management, and analysis.
 * Develop unifying model techniques, procedures, and processes (for model development, tool integration, and team integration)
 * Manage program governance and assist subject matter experts in the development of program compliance documents.

This requisition may be filled at either the Principal Systems Engineer level (T-03) or Sr Principal Systems Engineer level (T-04).
Principal Systems Engineer