Senior Principal Software Engineer

Northrop Grumman

Senior Principal Software Engineer designing, developing, and testing applications for Northrop Grumman's Sentinel Program. Collaborating on multidisciplinary research and ensuring software standards are met in a challenging and innovative environment.

Posted 4/22/2026full-timeRoy • Alabama, Utah • 🇺🇸 United StatesSenior💰 $122,800 - $203,600 per yearWebsite

Tech Stack

Tools & technologies

JavaPython

About the role

Key responsibilities & impact

Designs, develops, documents, tests and debugs applications software and systems that contain logical and mathematical solutions.
Conducts multidisciplinary research and collaborates with equipment designers and/or hardware engineers in the planning, design, development, and utilization of electronic data processing systems for product and commercial software.
Determines computer user needs; analyzes system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls; prepares operating instructions; designs and develops compilers and assemblers, utility programs, and operating systems.
Ensures software standards are met.

Requirements

What you’ll need

Bachelor's degree with 8 years of experience; or Master's degree with 6 years of experience; or PhD with 4 years of experience.
4 additional years of experience may be substituted in lieu of a degree.
Must be a US Citizen with an active DoD Secret Clearance with an investigation date within the last 6 years at time of application.
Must be able to obtain and maintain Special Access Program (SAP) approval within a reasonable period of time, as determined by the company to meet its business needs.
3+ year(s) of experience working Software Test, SW Development and/or Systems Engineering.
3+ year(s) of experience with Java, C++, Python.
Experience writing test scripts in order to verify requirements.
Understanding of the software development lifecycle and agile development methodology.

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

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Applicant Tracking System Keywords

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

Hard Skills & Tools

JavaC++Pythonsoftware testingsoftware developmentsystems engineeringtest scriptssoftware development lifecycleagile development methodologycompilers

Certifications

Bachelor's degreeMaster's degreePhDDoD Secret ClearanceSpecial Access Program (SAP) approval