Northrop Grumman

Sr. Principal Optomechanical Engineer - 4

Northrop Grumman$122K — $184K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Optical Engineering, Materials Science, Mechanical Engineering, Physics, or related discipline and 8 years of experience; or a Master's degree and 6 years; or a PhD and 4 years.
  • Ability to obtain a U.S. Government - Secret security clearance at time of application.
  • Professional experience in IR optical materials and window assemblies for high-reliability systems.
  • Testing experience with mechanical and environmental methods like thermal cycling and vibration.
  • Experience coordinating with vendors regarding specifications and inspection criteria.
  • Demonstrated use of NDI methods for optical or structural components.
  • Proven ability to solve complex technical problems and communicate findings succinctly.

Responsibilities

  • Serve as the IR Window Responsible Engineer, managing requirements and verification for materials and assemblies.
  • Collaborate with stakeholders on material selection, testing, and manufacturing strategies.
  • Coordinate with government partners to align material development with program objectives.
  • Ensure design decisions reflect test data across various domains.
  • Lead development efforts for critical window components, including coatings and bonds.
  • Oversee testing activities to validate performance margins.
  • Facilitate creation and approval of technical documentation related to design and testing.

Benefits

  • Relocation assistance may be available.
  • Health insurance coverage.
  • Life and disability insurance.
  • Savings plan.
  • Company-paid holidays and paid time off (PTO).
Full Job Description
RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: Yes, 10% of the TimeDescription

Northrop Grumman Space Systems is seeking a Sr. Principal Optomechanical Engineer to serve as the Seeker IR Window Responsible Engineer (RE) supporting the Launch Vehicles business unit in Chandler, Arizona.

You will serve as the window responsible engineer (RE) for the seeker subsystem, providing technical leadership for the design, development, testing, and integration of infrared (IR) optical materials and components across multiple programs. This role centers on material selection, testing, manufacturing processes, and system integration, as well as coordination with domestic and international stakeholders, government partners, vendors, and research institutions. The ideal candidate will combine deep expertise in material science and opto-mechanical engineering with strong leadership and organizational skills to drive collaborative efforts and support critical project milestones.

Responsibilities
  • Serve as the IR Window Responsible Engineer (RE) for the seeker subsystem, owning requirements, allocation, and verification related to window materials and assemblies.
  • Collaborate with domestic and international stakeholders on material trade studies, testing campaigns, procurement strategies, and manufacturing process improvements.
  • Coordinate with government partners for material development and testing activities, ensuring alignment with program objectives, contractual requirements, and export control regulations.
  • Ensure window design decisions are consistent with structural, thermal, optical, and environmental test data.
  • Lead trade studies and development efforts for IR window and assembly materials and components, including coatings, bonds, seals, and supporting structures.
  • Coordinate with internal GNC, systems, mechanical, materials, and manufacturing teams, as well as external vendors, to support component design, prototyping, qualification, and production.
  • Oversee relevant material and component testing activities, including mechanical evaluations, thermal shock/thermal cycling, environmental testing, and other required experiments to validate performance margins.
  • Facilitate the creation and approval of technical documentation, including design drawings, tolerance analyses, specifications, ICDs, and test plans/procedures.
  • Manage procurement plans and maintain schedule compliance for key materials, components, and associated assembly hardware, identifying and mitigating supply chain risks.
  • Drive manufacturing process improvements and provide detailed design and process feedback to suppliers to improve yield, reliability, and producibility.
  • Develop, validate, and oversee Non-Destructive Inspection (NDI) methodologies.
  • Ensure compliance with relevant regulations, including export controls, and support data exchanges or collaboration with external partners under appropriate technical and security controls.
  • Provide technical leadership and briefings to internal and external stakeholders, including participation in design and readiness reviews, risk boards, and material review boards.


Basic Qualifications
  • Bachelor's degree in Optical Engineering, Materials Science, Mechanical Engineering, Physics, or a related discipline from an accredited university and 8 years of related experience; or Master's degree in a related discipline and 6 years of related experience; or PhD in a related discipline and 4 years of related experience.
  • Ability to obtain a U.S. Government - Secret security clearance at the time of application.
  • Professional experience leading the design, development, or qualification of IR optical materials and window assemblies for aerospace, defense, or similar high-reliability systems.
  • Experience with material and component testing, including mechanical and environmental test methods (e.g., thermal cycling, vibration, shock, pressure, humidity, and relevant MIL-STD test frameworks).
  • Experience coordinating technical activities with vendors and suppliers, including interpretation of specifications, drawings, and inspection criteria.
  • Demonstrated experience with NDI methods used for optical or structural components (such as radiography, ultrasonic inspection, optical/visual inspection).
  • Experience working with or within multi-disciplinary teams (systems, guidance navigation and control (GNC), mechanical, materials, manufacturing, test) to integrate hardware into complex systems.
  • Familiarity with export control considerations and handling of technical data in support of domestic and international collaborations.
  • Proven ability to independently tackle complex technical problems, synthesize test and analysis results, and present technical findings to stakeholders in written and oral formats.


Preferred Qualifications
  • MS or PhD in Optical Engineering, Materials Science, Mechanical Engineering, Physics, or related discipline.
  • Active U.S. Government DoD Secret security clearance at the time of application.
  • Experience serving as a technical lead or responsible engineer for IR windows or other critical optical components on missile, hypersonic, or other high-reliability flight systems.
  • Previous experience with DoD missile defense or seeker programs, including familiarity with performance verification frameworks, environmental qualification, and flight test correlation.
  • Hands-on experience with IR window design and integration, including material selection (e.g., IR-transmitting ceramics/crystals), coatings, mechanical mounting, and thermal/structural analyses.
  • Experience developing or overseeing NDI procedures for optical materials and assemblies, including disposition of nonconformances and root-cause investigations.
  • Proficiency with engineering and analysis tools such as finite element analysis (FEA) for structural/thermal evaluation, optical performance modeling, and statistical methods for test data analysis.
  • Demonstrated experience driving manufacturing process improvements, supplier development activities, and configuration management for critical hardware.
  • Strong written and verbal communication skills and a track record of mentoring and developing junior engineers.


Primary Level Salary Range: $122,800.00 - $184,200.00

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.

About Northrop Grumman

Northrop Grumman is a security company that provides systems, products, and solutions in aerospace, electronics, information systems, shipbuilding, and technical services to government and commercial customers. They design, develop, and build everything from aircraft and spacecraft to cyber security systems. The company is involved in a wide range of defense and technology projects, including the development of aircraft, space systems, cybersecurity solutions, and advanced electronics.

Northrop Grumman Careers

Join the elite team at Northrop Grumman, a leading global security company providing innovative systems, products, and solutions in autonomous systems, cyber, C4ISR, space, strike, and logistics and modernization to customers worldwide. There has never been a more exciting time to advance your career with Northrop Grumman.

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Northrop Grumman is dedicated to your professional and personal growth. We offer unparalleled benefits, including comprehensive health coverage, generous time off, and family care resources. Additionally, we provide extensive leadership and diversity training to help you craft your career path.

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Learn more about Northrop Grumman
Size
88,000 employees
Market Cap
$82.7 billion
Industry
Net Income
$3.1 billion
Founded
1939
5 Year Trend
+7.6%
Revenue
$36.7 billion
NASDAQ

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