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Sentinel Sr. Principal Software Systems Engineer

Northrop Grumman

$124,900 - $196,700
Sep 16, 2025
Colorado Springs, CO, USA • Huntsville, AL, USA
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Northrop Grumman Defense Systems is seeking a Sr. Principal Software Systems Engineer to support the Sentinel program, requiring expertise in software engineering, system design, and safety-critical functions.

Requirements

  • Current understanding of software engineering best practices
  • Experience in software engineering, system design, software requirements, and test
  • Experience with Agile and working in a cross-functional Scrum team.
  • Experience performing Safety Critical Functional Thread Analysis (SCFTA)
  • Experience designing for and writing requirements for Safety Critical Functions
  • Experience with USAF Nuclear Surety (AFMAN91-119) and/or Cyber Certification
  • Minimum 2 years Model-Based Systems Engineering (MBSE) experience

Responsibilities

  • Experience in software engineering, system design, software requirements, and test
  • Experience performing Safety Critical Functional Thread Analysis (SCFTA)
  • Experience designing for and writing requirements for Safety Critical Functions
  • Experience with USAF Nuclear Surety (AFMAN91-119) and/or Cyber Certification
  • Experience integrating multiple engineering specialties and stakeholders across multiple Integrated Product Teams and Suppliers
  • Experience leading requirements, design, and integration of complex systems
  • Able to create system, hardware and software verification plans to address complete functional validation as described by the software requirements specification

Other

  • US Citizenship with Active DoD Secret clearance with a reinvestigation date occurring in the last 6 years.
  • Ability to obtain Special Program Access (SAP).
  • Ability to team plan, execute, and manage the technical scope, and support leadership planning.
  • RELOCATION ASSISTANCE: Relocation assistance may be available
  • TRAVEL: Yes, 10% of the Time