Senior Principal Software Systems Engineer

Northrop Grumman

. Support the Sentinel program.

Posted 4/30/2026full-timeRoy • Alabama, Colorado, Utah • 🇺🇸 United StatesSenior💰 $118,600 - $196,700 per yearWebsite

About the role

Key responsibilities & impact

Support the Sentinel program.
Work on revolutionary systems that impact people's lives.
Invent the future with bold new ideas and a pioneering spirit.
Collaborate with teams to bring whole selves to work.

Requirements

What you’ll need

8 Years with Bachelor’s in related field of study, 6 Years with Masters, 4 Years with PhD or 4 additional years in lieu of a degree.
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.
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
Experience integrating multiple engineering specialties and stakeholders across multiple Integrated Product Teams and Suppliers
Experience leading requirements, design, and integration of complex systems
Minimum 2 years Model-Based Systems Engineering (MBSE) experience
Able to create plans and standards for architecture, requirements, and design that can address selection process that accounts for providing safe, fault tolerant, and deterministic operation for critical functions.
Able to create system, hardware and software verification plans to address complete functional validation as described by the software requirements specification

Benefits

Comp & perks

Medical, Dental & Vision coverage
401k
Educational Assistance
Life Insurance
Employee Assistance Programs & Work/Life Solutions
Paid Time Off
Health & Wellness Resources
Employee Discounts

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

software engineeringsystem designsoftware requirementstestAgileScrumSafety Critical Functional Thread Analysis (SCFTA)Model-Based Systems Engineering (MBSE)architecture planningfunctional validation

Soft Skills

collaborationleadershipteam planningexecution managementcommunication

Certifications

DoD Secret clearanceSpecial Program Access (SAP)USAF Nuclear Surety (AFMAN91-119)Cyber Certification