Principal Software Engineer – Onsite Customer Integration

Northrop Grumman

. Deploy, automate, maintain, troubleshoot, and improve systems and software infrastructure .

Posted 11/2/2026full-timeUnited StatesSenior💰 $98,400 - $213,400 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in deploying, automating, and maintaining software infrastructure while integrating technical solutions and adhering to formal requirements and testing protocols. Proficient in C/C++ development and capable of leading cross-functional teams to solve complex integration challenges.

Highest-signal resume keywords

C/C++ DevelopmentSoftware IntegrationFormal Requirements TestingUS Government ClearanceLinux Environment Networking

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software Development LifecycleApplication DevelopmentUnit TestingSoftware-Hardware IntegrationSystem TestingConfiguration ManagementBash ScriptingTechnical DocumentationSoftware Metrics ReportingProblem Solving

Soft Skills

Excellent Verbal CommunicationExcellent Written CommunicationInterpersonal SkillsLeadership

Tools & Technologies

OS ConfigurationLinux

Certifications & Qualifications

Bachelor’s Degree in STEMMaster’s Degree in STEMPhD in STEMUS Government ClearanceSpecial Access Program (SAP)

Industry Keywords

Software InfrastructureIntegration ProblemsTechnical RequirementsProgram ManagementGovernment Customers

Tech Stack

Tools & technologies

LinuxC++

About the role

Key responsibilities & impact

Deploy, automate, maintain, troubleshoot, and improve systems and software infrastructure
Design and implement application builds, releases, deployments, and configuration activities
Participate in the full software development lifecycle from requirements development through maintenance
Perform modeling, design, application development, unit-to-CSCI testing, software-hardware integration, formal system testing, release, and installation
Solve complex integration problems using technical expertise
Interact with Program Management, external suppliers, and government customers
Design, implement, and unit test software
Integrate functionality with other software components alongside team members and customers
Gather and report software metrics
Follow program software best practices
Work with engineers and technicians in a lab environment
Review, analyze, and incorporate technical requirements into end-to-end system architectures
Travel frequently, up to 50% of the time
Provide leadership across multiple teams to drive solutions to complex problems
Support software working groups with the customer
Develop and share technical documentation and presentations

Requirements

What you’ll need

Bachelor’s Degree in a STEM discipline and 5 years of related engineering experience, or Master’s degree and 3 years, or PhD and 1 year for Principal Software Engineer Level 3
Bachelor’s Degree in a STEM discipline and 8 years of related engineering experience, or Master’s degree and 6 years, or PhD and 4 years for Sr. Principal Software Engineer Level 4
Development experience with C/C++ or other OOP languages
At least 3 years of experience integrating technical solutions for a software product
At least 3 years of experience on a project with formal requirements and testing
Ability to travel from Patuxent River, Maryland to Melbourne, Florida
Must spend at least one week per month in Melbourne, Florida
Ability to obtain and maintain a US Government clearance and Special Access Program (SAP); interim Secret clearance required to start
Excellent verbal, written, and interpersonal skills
Experience with OS configuration, bash scripting, C/C++, or other OOP languages, and networking in a Linux environment is strongly desired
U.S. Citizenship is required for positions with a government clearance

Benefits

Comp & perks

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