Principal Software Engineer

About the role

Northrop Grumman is seeking a Principal Software Engineer to join our team on site in San Diego, CA, Palmdale, CA, El Segundo, CA or Oklahoma City, OK. The ideal candidate will have a self-starter attitude, familiarity with Integrated Product Teams, and experience in developing and maintaining simulation and modeling software.

Responsibilities

• Develop, implement, and maintain modular simulation and modeling software (e.g., C++, Python)
• Integrate simulation components with system interfaces, middle-ware, and test harnesses
• Ensure interoperable data flows and real-time performance
• Design and execute verification and validation tests, analyze results, identify defects, and implement fixes
• Optimize simulation performance and scalability
• Profile code, reduce latency, and support CI/CD pipelines for automated builds and deployments
• Collaborate with systems engineers, testers, and stakeholders to translate requirements into simulation scenarios, produce technical documentation, and support demonstrations

Requirements

The selected candidate will be required to work full-time, on-site at our facility. There is no remote / hybrid / telework available for this position. Travel up to 10% may be required.

Qualifications

• Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) 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.
• Demonstrated professional experience developing software in C/C++
• Demonstrated professional experience with software change control, and change management such as: Atlassian tool suite, GitHub, AND/OR GitLab
• Demonstrated Professional Experience with the full Software Development Life Cycle (SDLC)
• Active U.S. Government Top Secret clearance (with a background investigation within the past 5 years or enrolled into Continuous Evaluation).
• Ability to obtain and maintain initial Special Access Program (SAP) access via a Program Access Request (PAR).
• This SAP/PAR must be obtained prior to commencement of employment and must be obtained within a reasonable amount of time as determined by the company to meet its business needs.
• Ability to obtain and maintain subsequent SAP PARs following commencement of employment to be able to completely support statement of work.

Preferred Qualifications

• Current applicable Special Access Program (SAP) clearance
• Demonstrated professional experience developing software in Python
• Differentiating characteristics include demonstrated leadership, teamwork capabilities, excellent oral and written communications skills, and strong interpersonal communication skills at all levels of employees and management.
• Demonstrated professional experience developing software Java
• Experience with software network interfaces -and troubleshooting networks (TCP/IP, UDP, LAN, VLAN, SNMP or others)
• Experience in safety‑critical embedded real‑time software on RTOS platforms
• Demonstrated professional experience with static code analysis tools such as: Coverity, SonarQube, AND/OR Fortify

Pay

Primary Level Salary Range: $93,300.00 - $171,000.00