Lightmatter
Mechanical Design Engineer
$135K–$212K
Mountain View, CA +1 · Full-time · Posted May 13, 2026
- Location
- Mountain View, CA
Boston, MA - Experience
- Minimum of 3 years of mechanical design experience in semiconductor packaging, optoelectronics, or photonics modules.
- Education
- BS or MS in Mechanical Engineering or a related field.
- Visa sponsorship
- Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.
About the job
Design and validate advanced semiconductor and photonics packages for AI and high-performance computing systems, optimizing mechanical, optical, thermal, assembly, and reliability performance.
What you'll do
- Create package-stack-up CAD models, perform mechanical design and tolerance analyses, and produce GD&T drawings.
- Identify mechanical failure modes, conduct FMEAs, and guide design choices using manufacturing and cost considerations.
- Manage prototype builds with vendors and collaborate with package and systems teams to validate designs and meet system requirements.
What they ask for
- BS or MS in Mechanical Engineering or a related field.
- Minimum 3 years of mechanical design experience in semiconductor packaging, optoelectronics, or photonics modules.
- Proficiency in Solidworks or Creo and expertise in GD&T and tolerance stack-up analysis.
- Working knowledge of semiconductor packaging technologies, including mechanical and thermal trade-offs of 3D, 2.5D, and FCBGA architectures.
Nice to have
- Knowledge of ASME Y14.5 standards.
- Working knowledge of FEA tools such as ANSYS or Abaqus; experience with photonic alignment, advanced thermal architectures, or high-volume manufacturing is also valued.
Pay
$135,000 — $212,000 USD (base salary)
Tools
Solidworks, Creo, GD&T, ANSYS, Abaqus, 3D, 2.5D, FCBGA
AI focus
Design packaging technologies for AI architectures and AI/HPC systems.
Model-written summary · the original posting is authoritative