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Lumentum is seeking a highly experienced and innovative Engineer Principal, Mechanical to lead the design, development, and optimization of complex mechanical systems for our cutting-edge optical products. This role involves driving advanced mechanical engineering solutions from concept to production, ensuring robust performance, reliability, and manufacturability.
Key Responsibilities:
- Lead the mechanical design and analysis of opto-mechanical assemblies, modules, and systems for new product introduction and existing product enhancements.
- Conduct advanced engineering analysis, including FEA (stress, thermal, vibration), CFD, and tolerance analysis, to ensure design integrity and performance.
- Develop detailed mechanical specifications, design documentation, and test plans.
- Collaborate closely with cross-functional teams including optical engineers, electrical engineers, manufacturing engineers, and program managers to define requirements, integrate designs, and troubleshoot issues.
- Mentor junior engineers and provide technical guidance within the mechanical engineering team.
- Drive the selection and qualification of materials, components, and manufacturing processes.
- Identify and implement innovative mechanical solutions to improve product performance, cost-effectiveness, and manufacturability.
- Oversee design validation and verification activities, including prototype testing and failure analysis.
- Stay abreast of industry trends, new technologies, and best practices in mechanical engineering and optical systems.
Required Qualifications:
- Master's degree in Mechanical Engineering or a related field; Ph.D. preferred.
- 10+ years of progressive experience in mechanical design and analysis, preferably within the optical, semiconductor, or high-tech manufacturing industries.
- Expert proficiency with 3D CAD software (e.g., SolidWorks) and PDM/PLM systems.
- Demonstrated expertise in advanced FEA and CFD tools (e.g., ANSYS, FLOTHERM).
- Strong understanding of material science, heat transfer, vibrations, and precision mechanical design principles.
- Experience with design for manufacturability (DFM), design for assembly (DFA), and design for reliability (DFR).
- Proven ability to lead complex technical projects and mentor engineering teams.
- Excellent problem-solving skills and a strong analytical mindset.
- Exceptional communication, interpersonal, and presentation skills.
- Experience with optical alignment and packaging techniques is a significant advantage.
We are an equal opportunity employer and value diversity at our company.
We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.
Please contact us to request accommodation.
Skills Required
- Master’s degree in Mechanical Engineering or a related field
- Ph.D. in Mechanical Engineering or a related field
- 10+ years of progressive experience in mechanical design and analysis
- Experience preferably within optical, semiconductor, or high-tech manufacturing industries
- Expert proficiency with 3D CAD software, such as SolidWorks
- Experience with PDM/PLM systems
- Expertise in advanced FEA and CFD tools, such as ANSYS and FLOTHERM
- Strong understanding of material science, heat transfer, vibrations, and precision mechanical design
- Experience with design for manufacturability, design for assembly, and design for reliability
- Ability to lead complex technical projects and mentor engineering teams
- Excellent problem-solving and analytical skills
- Exceptional communication, interpersonal, and presentation skills
- Experience with optical alignment and packaging techniques
Lumentum Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lumentum and has not been reviewed or approved by Lumentum.
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Equity Value & Accessibility — Equity programs such as RSUs and a discounted ESPP are described as meaningful components of total rewards, especially in corporate and engineering roles. These offerings, alongside bonuses in some roles, can make compensation feel competitive.
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Retirement Support — A 401(k) with employer matching and other financial-security programs are highlighted as strengths. Some U.S. reports mention immediate vesting, reinforcing the value of retirement benefits.
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Healthcare Strength — Multiple medical-plan options and broad healthcare coverage are noted as solid parts of the package. Health benefits are often referenced together with paid leave and wellness resources as part of a comprehensive offering.
Lumentum Insights
What We Do
Lumentum (NASDAQ: LITE) is a market-leading designer and manufacturer of innovative optical and photonic products enabling optical networking and laser applications worldwide. Lumentum optical components and subsystems are part of virtually every type of telecom, enterprise, and data center network. Lumentum lasers enable advanced manufacturing techniques and diverse applications including next-generation 3D sensing capabilities. Lumentum is headquartered in San Jose, California with R&D, manufacturing, and sales offices worldwide. For more information, visit www.lumentum.com.
