Sr Principal Engineer Optical

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. Northrop Grumman Mission Systems (NGMS) is seeking a highly skilled Optical Engineer to join our fast‑paced fiber‑optic gyroscope (FOG) production line onsite in Salt Lake City, UT. The Engineer will design, model, analyze, and test optical and electro‑optical systems and components—including sensors, lasers, and fiber‑optics—while ensuring that production remains uninterrupted. The role demands deep knowledge of optical hardware, strong troubleshooting abilities, and the capability to drive cost‑effective, high‑quality manufacturing processes. What You Will Get to Do: Design & Development: Create optical system models and detailed component specifications (tolerances, materials, interfaces). Develop simulation and test procedures for sensors, lasers, fiber‑optic assemblies, and complete electro‑optical subsystems. Apply design‑to‑cost analyses and Six‑Sigma tools to verify that optical requirements are satisfied within budget constraints. Production Line Support: Maintain continuous line uptime; prioritize rapid resolution of equipment or process issues that could halt production. Possess in‑depth knowledge of Fiber optic gyro production equipment (splicers, spectrum analyzers, OTDR/OBR, interferometers, fusion stations) to troubleshoot optics and minimize downtime. Interact daily with operators to gather feedback, diagnose manufacturing defects, and suggest process improvements. Root‑Cause Investigation & Continuous Improvement: Lead investigations of production anomalies, identifying root causes and coordinating cross‑functional corrective actions (materials, equipment, assembly processes). Utilize statistical process control (SPC), yield analysis, and ROI‑focused metrics to drive process stability, yield enhancement, and cost reduction. Collaboration & Supplier Management: Work closely with design engineering to develop next‑generation fiber‑optic components and gyro architectures, ensuring designs are manufacturable. Represent manufacturing in supplier capability assessments; partner with key vendors to improve yields and resolve failure investigations. Process Development & Compliance: Develop and refine manufacturing processes for new optical designs, emphasizing scalability and repeatability. Ensure all activities comply with stringent regulatory and customer requirements typical of defense‑related programs. Basic Qualifications: Bachelors Degree in STEM with 8 years of experience, Master's Degree in STEM with 6 years of experience, or a PhD in STEM with 4 years of experience. Experience in optical/electro‑optical design, analysis, and testing. Proven experience keeping a high‑mix production line operational. Optical product performance enhancement and tolerance analysis. Six‑Sigma, design‑to‑cost, and reliability engineering experience. SPC, statistical analysis, and ROI evaluation. Root‑cause analysis and corrective‑action planning. Hands‑on with fiber splicers, optical spectrum analyzers, OTDR and OBR stations, white‑light interferometers, coupler fusion stations, and related test gear. Strong communication, ability to work collaboratively across engineering, manufacturing, and supplier teams, and a data‑driven problem‑solving mindset. US Citizenship. Ability to obtain and maintain a Secret Clearance. Preferred Experience: B.S. in Optical/Electrical Engineering, Physics, or a related discipline. Direct engineering support for electro‑optical assembly equipment, processes, and materials. Track record of introducing new optical designs or products into a production environment. Experience in a highly regulated sector (defense, aerospace, medical) with strict customer and process specifications. What We Can Offer You: Northrop Grumman provides a comprehensive benefits package and a work environment which encourages your growth and supports the mutual success of our people and our company. Northrop Grumman benefits give you the flexibility and control to choose the benefits that make the most sense for you and your family. Your benefits will include the following: Health Plan, Savings Plan, Paid Time Off and Additional Benefits including Education Assistance, Training and Development, 9/80 Work Schedule (where available), and much more! Primary Level Salary Range: $135,000.00 - $202,600.00 The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions. Existing Applicants: Need to update your contact information or email address? Once logged in, click on Candidate Home in the upper right corner and scroll to the bottom of that screen to see buttons for: Update Contact information to update your legal name, address, and phone number Edit Account Settings to edit your email address We are a pioneering company. With careers across all areas: air, cyber, land, sea and space – our 90,000 employees work as one to defend and define the future. Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will give you every opportunity to do your best work. Working together with people from many backgrounds, personal passions and disciplines, we share a drive to push the boundaries of science, technology and engineering to meet the ever evolving needs of our customers worldwide.