Optical-Electronic Packaging Engineer

Lumentum Operations LLC; San Jose (CA); On-site; USD 134,750 - 192,500; Full time

Benefits offered by this job

Flexible time off

Health benefits

Tuition reimbursement

Gym facilities

Stock options

Job summary

Lumentum seeks a Mechanical Engineer to design and develop high-density, high-power optical module packaging for AI and data center interconnects. You will drive architecture, prototyping, testing, and manufacturing ramp, collaborating with optical, electrical, thermal, reliability and manufacturing teams.

The role emphasizes GD&T, thermal management, and DFx in non-hermetic packaging, with international travel up to 25% and opportunities to influence platform strategy in a fast-paced R&D

Qualifications

• B.S. in Mechanical Engineering; MS/PhD preferred.
• Experience in optoelectronic or high-speed electronic product packaging for data center/AI is valued.
• Strong proficiency in mechanical design and thermal simulation tools such as SolidWorks, FloTHERM.

Responsibilities

• 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) for high power density and airflow constraints
• Own GD&T definition and tolerance stack-up analysis for high-density assemblies
• Design fixtures, tooling, and test infrastructure to support optical alignment and scalable manufacturing
• Collaborate with optical, electrical, thermal, reliability, manufacturing, and supply-chain teams to deliver integrated solutions
• For senior-level engineers: provide technical direction, mentor junior engineers, influence platform strategy

Skills

Mechanical design

Thermal simulation

GD&T

DFM/DFA

Programming basics

Data analysis JMP

Education

B.S. in Mechanical Engineering

MS or PhD preferred

Tools

SolidWorks

FloTHERM

MATLAB

VB

C

Job description

Optical-Electronic Packaging EngineerSkip to main contentWe use cookies to make the safest and most effective website possible.# OpportunitiesOptical-Electronic Packaging Engineer page is loaded## Optical-Electronic Packaging EngineerApplylocations: USA - CA - San Jose (Ridder)time type: Full timeposted on: Posted Todayjob requisition id: 2026174**It's fun to work in a company where people truly BELIEVE in what they're doing!** We're committed to bringing passion and customer focus to the business.If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!**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**What We’re Looking For****Education: B.S. in Mechanical Engineering or a related discipline (M.S. or Ph.D. preferred)****Experience: Core Requirements:*** 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.* 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*** ***[e-mail]*** ***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.Lumentum is illuminating the networks of tomorrow with advanced photonic technologies that enable AI, data centers, telecom, industrial, and sensing applications. As AI accelerates the global demand for bandwidth and energy efficiency, we deliver the building blocks that keep data moving reliably, efficiently, and at massive scale. Our optical products support AI and compute infrastructure, cloud and DCI environments, metro and long-haul networks, while our lasers drive breakthroughs in precision manufacturing and sensing.For nearly five decades, Lumentum has been at the intersection of light and innovation. What began as a vision with JDS Uniphase to harness the power of photonics has evolved into a global force driving the communication infrastructure of tomorrow. At Lumentum, we’re building more than a business—we’re building a team of passionate innovators whose drive to collaborate, create, and connect the world fuels everything we do. We are part of the AI technology revolution and we are illuminating the path forward. Headquartered in San Jose, California, we operate worldwide through a network of R&D, manufacturing, and sales locations.