New
System Mechanical Engineer
Boston, MA; Mountain View, CA
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!
We are seeking a motivated and dedicated mechanical engineer to help develop a platform for the next-generation of silicon photonics based artificial intelligence accelerators and interconnect products alongside a team of world-class scientists and engineers.
Responsibilities
Design, test, analyze, integrate, qualify and document hardware of moderate to high complexity
Ensure proper packaging of systems to obtain optimal thermal and structural design
Lead mechanical design approaches and packaging techniques for the Systems organization
Contribute to hardware engineering requirements capture and analysis in area of domain expertise
Participate in compliance testing with Nationally Recognized Test Labs in ensuring product meets all EMI/EMC and safety standards required
Oversee and conduct root-cause-analysis and technical investigations for Systems thermal and mechanical designs
Be point of contact with outside fabricators to ensure correct build-to-print and quality workmanship
Participate in cross-functional team efforts in integration, pre-qualification and qualification for products and sub-systems of moderate to high complexity
Provide assistance to creating technical road-maps, establishing best practices, and determining product feasibility
Requirements
5+ years of experience in system mechanical design with multiple successful product releases
Bachelor's degree or higher in Mechanical Engineering (or other related fields)
Proficient in a 3D CAD solid modeling software package
Familiar with both thermal and structural testing and analysis
Experience with state-of-the-art mechanical engineering design and analysis tools
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
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
$124,000 - $180,000 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. 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.
Create a Job Alert
Interested in building your career at Lightmatter? Get future opportunities sent straight to your email.
Create alert
System Mechanical Engineer
Boston, MA; Mountain View, CA
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!
We are seeking a motivated and dedicated mechanical engineer to help develop a platform for the next-generation of silicon photonics based artificial intelligence accelerators and interconnect products alongside a team of world-class scientists and engineers.
Responsibilities
Design, test, analyze, integrate, qualify and document hardware of moderate to high complexity
Ensure proper packaging of systems to obtain optimal thermal and structural design
Lead mechanical design approaches and packaging techniques for the Systems organization
Contribute to hardware engineering requirements capture and analysis in area of domain expertise
Participate in compliance testing with Nationally Recognized Test Labs in ensuring product meets all EMI/EMC and safety standards required
Oversee and conduct root-cause-analysis and technical investigations for Systems thermal and mechanical designs
Be point of contact with outside fabricators to ensure correct build-to-print and quality workmanship
Participate in cross-functional team efforts in integration, pre-qualification and qualification for products and sub-systems of moderate to high complexity
Provide assistance to creating technical road-maps, establishing best practices, and determining product feasibility
Requirements
5+ years of experience in system mechanical design with multiple successful product releases
Bachelor's degree or higher in Mechanical Engineering (or other related fields)
Proficient in a 3D CAD solid modeling software package
Familiar with both thermal and structural testing and analysis
Experience with state-of-the-art mechanical engineering design and analysis tools
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
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
$124,000 - $180,000 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. 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.
Create a Job Alert
Interested in building your career at Lightmatter? Get future opportunities sent straight to your email.
Create alert
Job ID: 487055715
Originally Posted on: 7/27/2025
Want to find more Construction opportunities?
Check out the 169,358 verified Construction jobs on iHireConstruction
Similar Jobs
Sign Up for Job Alerts
