System Mechanical Design Engineer

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D-stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads.

Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!

If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.

Lightmatter is (re)inventing the future of computing with light!

About this Role

We are seeking a motivated, dedicated, and hands-on mechanical design engineer to help develop a chassis and rack platforms for the next-generation artificial intelligence server alongside a team of world-class scientists and engineers.

Responsibilities

• Design, test, analyze, integrate, qualify and document hardware of moderate to high complexity, in a dynamic startup environment.
• Ensure proper packaging of optical, electrical and related components, to ensure optimal thermal performance.
• Responsible for mechanical design from generating CAD and drawings, to BOM generation and crafting work instructions.
• Fully understand project requirements and timeline - identify and raise gaps and work with the appropriate stakeholder to drive them to closure.
• Initiate and drive design reviews. Manage feedback and change requests.
• Participate in root-cause-analysis and technical investigations together with the cross-functional team.
• Own (hands-on) and drive in-house build and integration activities - from prototype builds to leading external CMs for larger quantity build.
• Manage outside fabricators to ensure correct build-to-print and quality workmanship
• Work with technical program managers to define a detailed timeline.
• Actively mitigate and manage lead-time issues with the supply chain team.
• Collaborate with relevant cross-functional engineering teams to understand dependencies.
• Provide assistance to creating technical road-maps, establishing best practices, and determining product feasibility

Qualifications

• 5+ years of experience in system mechanical design with multiple successful product releases
• BS degree or higher in Mechanical Engineering (or other related fields)
• Proficient in a 3D CAD solid modeling software package (SolidWorks)
• Familiar with both thermal and structural testing and analysis
• Experience with state-of-the-art mechanical engineering design and analysis tools (ANSYS preferred)
• Possess a strong understanding in the application of heat transfer principles, strength of materials, materials selection, design for vibration environments and the ability to apply those principles to unique mechanical design challenges.
• Experience with electronics packaging
• Strong communication and agile in execution.

Preferred Qualifications

• Familiar with 3D printing equipment and processes
• Proficient with FEA software package (ANSYS, SolidWorks)
• Proficient with thermal simulation and analysis software package (IcePak, Flotherm)

We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.

Salary Range: total compensation goes beyond base salary, it also includes a new hire equity grant, annual performance-based equity, and other rewards that recognize your impact and contribution.

$139,000—$190,000 USD

Benefits

• Comprehensive Health Care Plan (Medical, Dental & Vision)
• Retirement Savings Matching Program
• Life Insurance (Basic, Voluntary & AD&D)
• Generous Time Off (Vacation, Sick & Public Holidays)
• Paid Family Leave
• Short Term & Long Term Disability
• Training & Development
• Commuter Benefits
• Flexible, hybrid workplace model
• Equity grants (applicable to full-time employees)

Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.

Export Control

Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.