Principal Software Engineer (Active Secret Clearance Required)

Relocation & Travel Relocation assistance may be available. Clearance required at start: Yes (Secret). Travel: Yes, 10% of the time. Position Summary Software Engineer – Aeronautics Systems. Location: Oklahoma City, OK. Responsibilities Support the development of Strategic Operating Units and execute both sustainment and modernization programs. Contribute to software engineering initiatives for multiple programs with software design, development, testing, integration, and DevOps expertise. Use a variety of software languages, technologies, and industry best practices. Support all phases of the development life cycle for flight, mission, lab, and tools software. Basic Qualifications Standard: Bachelor’s degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline from an accredited university and five (5) years of related experience; OR Master’s degree in a STEM discipline with three (3) years of related experience; OR Ph.D. with one (1) year of related experience. Familiarity with safety‑critical embedded real‑time software. Experience with all phases of the software development life cycle and Agile framework as a Product Owner, SCRUM Master, and/or team member. Proficiency in developing software and scripts in C, C++, Python, PowerShell, VBScript, Bash, or KornShell for safety‑critical applications/systems. Experience architecting, designing, implementing, integrating, verifying, and qualifying safety‑critical embedded real‑time software running on VxWorks, Integrity, or real‑time embedded Linux. Knowledge of static and dynamic code analysis tools and fuzzing tools such as Coverity, Fortify, or SonarQube. Familiarity with software change control, change management, and CI/CD tools. Active U.S. Government Secret clearance or Top Secret (in‑scope) with the ability to obtain and maintain special program access (PAR). U.S. citizenship required for positions requiring clearance. Preferred Qualifications Demonstrated leadership, teamwork, and strong oral and written communication skills at all levels. Experience with Agile software development, object‑oriented architectures, designs, programming, debugging, and hardware‑software integration/testing. Experience with software change control, change management, code quality, static analysis, and CI/CD tools such as Atlassian suite, Jira, GitHub, GitLab, SonarQube, Coverity, or Jenkins. Experience architecting, designing, modeling (Rhapsody or Cameo), implementing, maintaining, integrating, and debugging object‑oriented C++ software on real‑time operating systems such as VxWorks, Integrity, or real‑time embedded Linux. Experience with DOORS and software requirement specification testing using simulators, automated scripting languages (Python, MATLAB, JavaScript, or Bash). Experience with static and dynamic code analysis tools and fuzzing tools such as Coverity, Fortify, or SonarQube. Experience troubleshooting software network interfaces and networks (TCP/IP, UDP, LAN, VLAN, SNMP, etc.). Salary Primary level salary range: $93,300.00 – $139,900.00. Salary offers are based on scope, responsibilities, experience, education, skills, and market conditions. Employees may be eligible for overtime, shift differential, discretionary bonus, and, for senior positions, long‑term incentives. Benefits Northrop Grumman provides health insurance coverage, life and disability insurance, a savings plan, company‑paid holidays, and paid time off for vacation or personal business. Equal Opportunity Employer Northrop Grumman is an Equal Opportunity Employer. For our complete EEO and pay transparency statement, please visit #J-18808-Ljbffr 0090 CORP-Corporate Office