Lightmatter
Sr. Staff Thermo-Mechanical Engineer
$169K–$244K
Mountain View, CA · Senior Staff · Full-time · Posted Aug 9, 2026
- Education
- MS or PhD in Mechanical Engineering, Material Science, or a related engineering field.
- Visa sponsorship
- Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.
About the job
Leads thermo-mechanical analysis and validation of advanced photonics packaging to improve product design, assembly, yield, and reliability for AI systems.
What you'll do
- Develop and validate finite-element and multiphysics models for photonic packaging, including stress, warpage, solder behavior, and thermal-structural performance.
- Identify reliability risks and guide design, material, and process solutions through analysis, prototyping, and vendor experiments.
- Build Python and MATLAB automation workflows; document and communicate technical findings and recommendations.
What they ask for
- MS or PhD in Mechanical Engineering, Material Science, or a related engineering field.
- Deep expertise in finite element analysis using commercial tools such as Ansys, Abaqus, or equivalent.
- Hands-on multiphysics simulation experience, including thermal-structural coupling, solder joint fatigue modeling, and warpage analysis.
- Experience with semiconductor packaging failure modes, wafer-level and unit-level assembly processes, and proficiency in Python and/or MATLAB.
Nice to have
- Experience with photonic packaging technologies and optical packaging reliability.
- Experience with DOE and JMP.
Pay
$169,000 — $244,000 USD (total compensation; the posting does not specify whether this range is base salary or total pay)
Tools
Ansys, Abaqus, Python, MATLAB, JMP
Model-written summary · the original posting is authoritative