Principal Mechanical Engineer - Opto-Mechanical Lead

Cloud Light Technology Limited; Hong Kong; On-site; HKD 1,099,000 - 1,491,000; Full time

Job summary

Lumentum Operations LLC is seeking a highly experienced Principal Mechanical Engineer 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.

The successful candidate will conduct advanced FEA/CFD analyses, collaborate across optical, electrical, and manufacturing teams, and

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.

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.

Education

Master's degree in Mechanical Engineering

Ph.D. preferred

Tools

SolidWorks

PLM/PDM systems

ANSYS

FLOTHERM

Job description

Lumentum Operations LLC is seeking a highly experienced Principal Mechanical Engineer 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.

The successful candidate will conduct advanced FEA/CFD analyses, collaborate across optical, electrical, and manufacturing teams, and