Principal Software Engineer – Integration and Test

Northrop Grumman

. Analyze requirements allocated to computer software configuration items .

Posted 10/13/2026full-timeSan Diego • California • United StatesLead💰 $114,000 - $171,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in software integration, testing, and automation within embedded systems, utilizing Object Oriented Programming languages and Agile methodologies. Proficient in developing technical documentation and collaborating with cross-functional teams to ensure quality and compliance in software development.

Highest-signal resume keywords

Software IntegrationTest AutomationAgile MethodologiesC/C++ OR Java AND Python OR JavaScriptCI/CD Tools

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software TestingDebuggingSoftware Development Life Cycle (SDLC)Software Change ControlMultithreaded Software DevelopmentAutomated Testing ToolsSafety-Critical Embedded SoftwareTechnical DocumentationRoot Cause AnalysisSoftware Installation Procedures

Soft Skills

Communication SkillsTechnical WritingProblem-SolvingCollaboration

Tools & Technologies

Atlassian Tool SuiteGitHubGitLabJenkinsConfluenceJIRADOORs

Certifications & Qualifications

U.S. Government Top Secret SCI ClearanceSpecial Access Program (SAP) Access

Industry Keywords

Embedded SoftwareReal-Time ApplicationsContinuous EvaluationSoftware Requirement SpecificationIntegration/Test Engineers

Tech Stack

Tools & technologies

JavaJavaScriptJenkinsNode.jsPythonSDLCC++

About the role

Key responsibilities & impact

Analyze requirements allocated to computer software configuration items
Design, develop, maintain, and execute automated software tests for qualification of embedded software products
Develop and execute software installation, integration, and acceptance test procedures in an automated test environment
Develop detailed, clear, and quality technical documentation
Diagnose and identify root causes of problems found during software installation, integration, acceptance testing, and operational events with software developers and other engineers
Submit detailed problem reports for errors found
Perform statements of work within development, laboratory, and operational environments
Collaborate with system engineers, hardware designers, integration/test engineers, and program leadership
Work on software supporting various systems throughout the software development lifecycle, including design, development, and testing

Requirements

What you’ll need

Bachelor’s Degree in a STEM discipline and 5 years of related engineering experience; OR a Master’s degree in a STEM discipline and 3 years of related engineering experience; OR a PhD in a STEM discipline and 1 year of related engineering experience
Experience in software integration, software testing, test automation, and debugging
Experience with full formal SW Dev Life Cycle (SDLC) methodologies and requirements through test
Ability to independently determine and develop approaches to solutions
Professional experience with Agile Framework and methodologies
Skilled in software integration planning and execution of separate software components into a single system
Professional experience implementing software and scripts in one or more Object Oriented Programming languages: C/C++, C#, OR Java, AND Python OR JavaScript within the last 3 years
Professional experience with Software Change Control, Change Management, and CI/CD tools such as Atlassian tool suite, GitHub, GitLab, AND/OR Jenkins within the last 3 years
Active U.S. Government Top Secret SCI clearance, with a background investigation within the past 5 years or enrollment in Continuous Evaluation
Ability to obtain and maintain initial Special Access Program (SAP) access via a Program Access Request (PAR) prior to commencement of employment
Ability to obtain and maintain upgraded SAP/PAR
U.S. Citizenship required for positions with a government clearance
Preferred: current applicable SAP clearance
Preferred: 2+ years of back-end development using Node.js in a production environment
Preferred: experience developing, integrating, and/or testing multithreaded software for real-time applications
Preferred: experience with testing methodologies, frameworks, and automated testing tools
Preferred: experience architecting, designing, modeling, implementing, maintaining, integrating, debugging, verifying, and qualifying safety-critical embedded real-time software or command-and-control software
Preferred: experience with Confluence and JIRA
Preferred: recent experience with DOORs and/or software requirement specification testing using simulators and automated scripting languages
Ability to brief technical presentations to stakeholders
Demonstrated communication and technical writing skills

Benefits

Comp & perks

Relocation assistance may be available
Overtime eligibility may be available
Shift differential may be available
Discretionary bonus may be available
Health insurance coverage
Life insurance
Disability insurance
Savings plan
Company-paid holidays
Paid time off (PTO) for vacation and/or personal business