Principal​/Sr. Principal System Engineer

System Engineer – Aeronautics Systems (Oklahoma City, OK)

Northrop Grumman’s Aeronautics Systems sector is seeking a Systems Engineer. This onsite position is in Oklahoma City, OK.

The Principal/Sr. Principal Systems Engineer will be responsible for developing and executing the program.

• Analyze tooling/support equipment and recommend appropriate solutions for repair, rework, or alternative solutions using modern manufacturing methods.
• Assess, interpret, and recommend changes to engineering drawings.
• Generate complex engineering models and drawings.
• Create and review detailed 3‑D CAD (Solid Works, CATIA, NX) models, drawings, and Bills of Materials (BOMs).
• Develop design concepts, criteria and engineering tasks for product development, production, integration and test.
• Assist or lead design for manufacturability (DFM) and design for assembly (DFA) reviews; recommend geometry or material changes to reduce production cost.
• Generate and maintain technical documentation: specifications, test plans, failure‑analysis reports, and engineering change orders (ECOs).
• Coordinate with suppliers and contract manufacturers to qualify components, conduct fit‑checks, and resolve technical issues.
• Support prototype build‑up, fixture design, and tooling selection; oversee test‑fixture fabrication and instrument integration.
• Research, plan, design and develop mechanical products and systems.
• Analyze complex systems and precision electro‑mechanical assemblies through simulation and/or analysis to then recommend appropriate substitutions or redesign solutions to ensure the integrity of the platform configuration, system safety, and performance specifications while minimally impacting qualification processes.
• Apply research to the planning, design, development, and testing of mechanical and/or electromechanical systems, instruments, controls, engines, and/or machines.
• Identify, analyze, and solve obsolescence issues.
• Establish milestones and monitor adherence to master plans and schedules.
• Identify program risks and assist in the establishing of mitigation steps.
• Act independently to uncover and resolve issues associated with the development and implementation of programs.
• Validate and qualify production tooling, fixtures, and automation equipment; coordinate design changes with mechanical engineering.
• Support process improvement and establishment of new or updated processes.
• Perform functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware specifications.
• Generate reports for customers, engineering leadership, and other cross‑functional organizations.
• Establish and enforce engineering standards, best‑practice libraries, and knowledge‑management processes across the organization.

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 25% may be required.

This position may be filled either at the Principal Systems Engineer level OR at the Sr. Principal Systems Engineer level based on the qualifications listed.

• Principal Systems Engineer:
  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.
• Sr. Principal Systems Engineer:
  Bachelor’s Degree in a relevant STEM (Science, Technology, Engineering or Mathematics) discipline and 8 years of related engineering experience; OR a Master’s degree in a relevant STEM discipline and 6 years of related engineering experience; OR a PhD in a relevant STEM discipline and 4 years of related engineering experience.
• Must have the ability to obtain and maintain DoD Secret / Special Access Program (SAP) clearance, within a reasonable amount of time as determined by business needs.
• Must be able to work on‑site in Oklahoma City, Oklahoma.
• Experience with CAD modeling (NX, CATIA).
• Experience performing best fit…