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Position Title: Mechanical Engineer (AI & Data Center Optical Modules)
Employment Type: Full-time, Existing vacancy
Location: San-Jose (On-Site)
About Lumentum
At Lumentum, we’re building the tech behind the world’s fastest networks and most advanced systems. Our optical and photonic solutions power everything from AI and cloud computing to data centers, telecom, and advanced manufacturing. We’re a global team of innovators working where light meets technology, solving big challenges that keep the world connected and moving forward. If shaping the future of connectivity excites you, you’ll fit right in.
Why You’ll Love This Role
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. Engineers in this role will define and deliver mechanical package solutions from early concept and system architecture through prototyping, validation (EVT/DVT), and high-volume manufacturing ramp. The scope of responsibility will scale with experience. Senior engineers are expected to provide technical leadership, influence mechanical and thermal architecture decisions, and contribute to long-term platform and technology roadmap development. This position plays a critical role in enabling scalable, cost-effective optical module platforms that meet the performance, power, and manufacturability demands of AI-driven data center systems.
What You’ll Be Doing
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
Education
B.S. in Mechanical Engineering or a related discipline (M.S. or Ph.D. preferred)
Experience
Core Requirements:
Experience level versatile: 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.
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
Perks You’ll Love
Flexible time off
Health and wellness benefits (physical and mental)
Tuition reimbursement and career growth support
A workplace built for you: free gym, games room, prayer room
Subsidized meals, free coffee/tea
Employee stock options and incentive plans
A collaborative, innovative, and inclusive culture
Join a Team That’s Shaping the Future
At Lumentum, we’re more than just a workplace—we’re a launchpad for creativity and innovation. We’re committed to celebrating your unique talents and helping you grow. Our guiding principles—Innovate, Engage, Deliver, Excel, and Win—aren’t just words; they’re the heart of what we do.
Let’s Build a Brighter Future Together!
We’re committed to building an inclusive workplace where everyone feels valued and empowered. We welcome applicants from all backgrounds and provide accommodations for individuals with disabilities throughout the hiring process. Your uniqueness makes us stronger, sparks creativity, and drives our success.
Please contact us at
[email protected] to request accommodation.
Join us—your future starts here!
Pay Range
P70-USA-1 :$134,750.00 - $192,500.00
Disclaimer
Final base salary for the successful candidate will depend on multiple factors, including but not limited to, job location, where work will be performed, qualifications, work history and relevant experience. With our continual goal of making Lumentum a best place to work for our employees, we strive to offer employees competitive total compensation packages, which may include annual bonus, commission for certain sales roles, equity, and health and welfare benefits.
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📌 Optical-Electronic Packaging Engineer (Quebec City)
🏢 Lumentum
📍 Quebec City