Mechanical Engineer ( AI & Data Center Optical Modules)

Lumentum
San Jose, United States of America
24 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior
Compensation
$ 146K

Job location

San Jose, United States of America

Tech stack

Computer-Aided Design
Artificial Intelligence
Data analysis
Computer Programming
SolidWorks (CAD)
Data Centers
Matlab
Scripting (Bash/Python/Go/Ruby)
JMP (Statistical Software)
High Performance Computing
Yield Optimization

Job description

We are seeking Mechanical Engineers to support the design and development of next-generation high-speed optical modules for AI and data center interconnect applications. This role focuses on advanced mechanical and thermal packaging solutions for high-density, high-power optical modules, including pluggable form factors and emerging advanced packaging architectures., * Design and develop mechanical packaging solutions for high-speed optical modules used in AI and data center interconnect systems

  • Drive mechanical concepts from architecture definition through detailed design, prototype build, validation, and production ramp
  • Develop detailed 3D CAD models and engineering documentation
  • Perform advanced thermal and mechanical stress analysis (FEA) to address high power density, airflow constraints, and long-term reliability
  • Own GD&T definition and tolerance stack-up analysis for high-density opto-electro-mechanical assemblies
  • Design fixtures, tooling, and test infrastructure to support optical alignment, module validation, and scalable manufacturing
  • Collaborate closely with optical, electrical, thermal, reliability, manufacturing, and supply-chain teams to deliver integrated, system-aware solutions
  • For senior-level engineers: provide technical direction, review designs, mentor junior engineers, and influence mechanical and thermal platform strategy

Requirements

  • B.S. in Mechanical Engineering or a related discipline (M.S. or Ph.D. preferred)
  • Experience level flexible: typically 5+ years of relevant industry experience for senior-level consideration; motivated early-career engineers with strong fundamentals and relevant project experience are also encouraged to apply
  • Prior experience developing optoelectronic or high-speed electronic products for data center, AI, or high-performance computing applications is highly valued
  • Strong proficiency in mechanical design and thermal simulation tools such as SolidWorks, FloTHERM, or equivalent CAD/FEA platforms
  • Deep understanding of thermal management, structural analysis, and high-density packaging design
  • Experience with GD&T and tolerance stack-up analysis for complex assemblies
  • Familiarity with high-density, non-hermetic optical module packaging and design for manufacturability (DFM/DFA)
  • Working knowledge of data analysis tools (e.g., JMP) and basic scripting or programming (VB, C, MATLAB, etc.) to support testing and automation is a plus
  • Ability to operate independently on complex technical problems while contributing effectively in a highly cross-functional environment

Additional Information

  • Self-motivated and adaptable in a fast-paced R&D and NPI environment
  • Willingness to travel internationally (up to 25%) to manufacturing and contract manufacturing sites to drive NPI execution, manufacturing readiness, yield improvement, and high-volume production ramp

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