Principal / Senior Principal Application Software Engineer

Northrop Grumman

full-time

Posted on: 10/1/2025

Location Type: Office

Location: Linthicum • Maryland • 🇺🇸 United States

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Salary

💰 $105,400 - $165,500 per year

Job Level

Senior

Tech Stack

LinuxPythonRTOSTypeScript

About the role

Use Model-based Engineering, DevSecOps and Agile practices to deliver critical national defense products and capabilities for the warfighter
Collaborate with cross-functional teams, technical customers, and stakeholders to design, develop, test, and integrate application software
Emphasize team empowerment, shared responsibility, flexibility, continuous learning, and a culture of automation
Apply object-oriented development (C/C++) and Python for embedded and real-time/multi-threaded applications
Implement automated testing and continuous integration (CI/CD) pipelines and practices
Work with operating systems (RedHat Enterprise, CentOS, Windows 10) and version control/Agile planning tools
Interface with hardware (1553, Ethernet, Serial, PCI-E) and RTOS as required
Serve on-site in the greater Baltimore, MD area
Travel as required (~10% of the time)
Role contingent upon acquiring and maintaining required US Government security clearance

Requirements

Bachelor's degree in a STEM discipline with 5 years of experience, a Master's degree in a STEM discipline with 3 years of experience, or a PhD in a STEM discipline with 1 year of experience (Principal)
Bachelor's degree in a STEM discipline with 8 years of experience, a Master's degree in a STEM discipline with 6 years of experience, or a PhD in a STEM discipline with 4 years of experience (Senior Principal)
Experience with C/C++ or similar language using object oriented development
Experience with Python
Experience with software development lifecycle (Waterfall, Scrum, Kanban, etc)
Excellent analytical, debugging, and problem-solving skills
Familiarity with embedded software development
Familiarity with computer architecture
Familiarity with automated testing and continuous integration frameworks (CI/CD)
Familiarity with operating systems such as: RedHat Enterprise, CentOs, and Windows 10
Familiarity with various version control systems (GitLab, BitBucket, etc) and Agile software planning tools (Rally, Jira, etc)
U.S. citizenship required
Current active DoD Secret Clearance with the ability to obtain and maintain a TS/SCI w. Polygraph prior to start
Preferred: Current active DoD TS/SCI with Polygraph
Preferred: Software Architecture skills (Design Patterns, Objected Oriented Design)
Preferred: Experience with containerized application development lifecycle
Preferred: Real-time/multi-threaded embedded application programming experience
Preferred: Experience with hardware interfaces such as: 1553, Ethernet, Serial and/or PCI-E
Preferred: RTOS Experience (VxWorks, Linux)
Preferred: Proven communication and team leadership skills
Preferred: Experience working with technical customers
Preferred: Experience with software engineering and architecture practices

Benefits

Relocation assistance may be available
Health insurance coverage
Life and disability insurance
Savings plan
Company paid holidays
Paid time off (PTO) for vacation and/or personal business
Eligible for overtime and shift differential (depending on position)
Discretionary bonus and annual bonuses
Long Term Incentives may be available for Vice President or Director positions

Applicant Tracking System Keywords

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

Hard skills

C/C++Pythonobject-oriented developmentautomated testingcontinuous integrationembedded software developmentsoftware development lifecyclereal-time applicationsmulti-threaded applicationshardware interfaces

Soft skills

analytical skillsdebugging skillsproblem-solving skillscommunication skillsteam leadership skillscollaborationflexibilitycontinuous learningshared responsibilityteam empowerment