Principal Software Engineer - Real-Time Simulation (Onsite, TS)

Talentify; Oklahoma City (OK); On-site; USD 93,000 - 171,000; Full time

Benefits offered by this job

Health insurance

Paid time off

Discretionary bonus

Job summary

Northrop Grumman Aeronautics Systems seeks a Principal Software Engineer to join the Models & Simulation team on-site at San Diego, Palmdale, El Segundo, or Oklahoma City. Lead development of modular simulation software in C++/Python, integrate components, and drive verification and CI/CD in a fast-paced environment.

Candidates must have a STEM degree with senior-level software experience and an active Top Secret clearance or eligibility, and be prepared for travel up to 10%.

Qualifications

• Bachelor’s Degree in a STEM discipline with 5+ years of related engineering experience; OR Master’s with 3+ years; OR PhD with 1+ year.
• Proven professional experience developing software in C/C++.
• Experience with software change control and change management tools (Atlassian, GitHub, or GitLab).
• Experience with full Software Development Life Cycle (SDLC).
• Active U.S. Government Top Secret clearance (with recent background investigation).
• Ability to obtain SAP access (PAR) prior to employment and maintain subsequent SAP PARs.

Responsibilities

• Develop, implement, and maintain modular simulation and modeling software (C++, Python) to support system behaviors and scenarios.
• Integrate simulation components with system interfaces, middleware, 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 to ensure model fidelity and accuracy.
• 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.

Skills

C/C++ development

Python development

SDLC experience

CI/CD

Software testing

Education

Bachelor’s Degree in STEM

Master’s Degree in STEM

PhD in STEM

Tools

GitHub

GitLab

Atlassian tool suite

Job description

Northrop Grumman Aeronautics Systems seeks a Principal Software Engineer to join the Models & Simulation team on-site at San Diego, Palmdale, El Segundo, or Oklahoma City. Lead development of modular simulation software in C++/Python, integrate components, and drive verification and CI/CD in a fast-paced environment.

Candidates must have a STEM degree with senior-level software experience and an active Top Secret clearance or eligibility, and be prepared for travel up to 10%.