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# Sentinel - Principal/Sr Principal Engineer Systems Engineer

- **Company:** Northrop Grumman
- **Location:** Roy, UT, United States
- **Experience:** Expert
- **Salary:** $98,400.0 - $147,600.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Network Interface Controllers, Design of User Interfaces, Object-Oriented Software Development, Systems Development Life Cycle, SAP (Applications), Verification and Validation (Software)
- **Published:** October 22, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9108461/sentinel-principalsr-principal-engineer-systems-engineer

## About the Role

Principal Systems Engineer:

 * 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
 * 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 needs
 * 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
 * 2+ years experience in Systems Engineering
 * 2+ years experience on large scale / complex aerospace/defense system development across multiple lifecycle phases: preliminary design, detailed design, integration and test, verification and sell off, transition to production.
 * 2+ year(s) Direct development experience of interface products (Interface Requirements Specification (IRS), Interface Design Description (IDD), Interface Control Document (ICD)) and requirement specifications
 * 1+ years experience in developing and executing Systems Engineering process governance documentation in a DoD Engineering and Manufacturing Development (EMD) phase &/or Risk Management
 * 1+ years experience in creating, updating, and maintaining requirements specifications in Dynamic Object-Oriented Requirements System (DOORS)

Sr. Principal Systems Engineer:

 * 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
 * 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 needs
 * 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
 * 5+ years experience on large scale / complex aerospace/defense system development across multiple lifecycle phases: preliminary design, detailed design, integration and test, verification and sell off, transition to production.
 * 3+ years experience in Systems Engineering
 * 3+ years direct development experience of interface products (Interface Requirements Specification (IRS), Interface Design Description (IDD), Interface Control Document (ICD))
 * 2+ years experience in developing and executing Systems Engineering process governance documentation in a DoD Engineering and Manufacturing Development (EMD) phase and/or Risk Management
 * 1+ years experience in team environments with technical leadership responsibilities including but not limited to leading a large group of engineers, briefing program leadership, and driving program execution.
 * 1+ years experience in creating, updating, and maintaining requirements specifications in DOORS, * 3+ years experience in ICBMs (MMIII or Sentinel)
 * Mechanical Design Integration (MDI) and/or Interface Control Model (ICM) development experience
 * Demonstrating leadership principles - Integrity, respect, organizational, communication, etc.
 * Demonstrated proficiency in analytical thinking and problem-solving skills and systems thinking mindset
 * Experience with creating and executing schedule & technical recovery plan
 * Experience working across program organizations to find solutions
 * Past/Active employment with MMIII or Sentinel Weapon Systems
 * Experience contributing towards various phases of a program lifecycle
 * Experience contributing towards various phases of the Systems Engineering "V" lifecycle
 * Experience with developing architectural diagrams
 * Earned Value Management (EVM) experience
 * Experience or working knowledge in a specialty field (Cyber, Nuclear Surety, Thermal, Electromagnetic Environmental Effects (EEE), Nuclear Hardness & Survivability (NH&S), etc.)

## Description

* Support engineering processes & analyses in specific product team designs to prove successful design integration and analyze for potential gaps at a high level.
 * Demonstrate strong leadership and foundational systems engineering skills to drive process and technical gap resolution of interface and requirement design solutions to achieve program and contract objectives
 * Foster engagement across diverse teams, including mentoring and coaching, ensuring appropriate coordination between SEIT and other integration teams
 * Participate in technical planning, verification and validation development, cost and risk considerations, and requirements analyses for program integrated systems.