jobs

Senior Mechanical Design Engineer

PsiQuantum's mission is to build the first useful quantum computers: machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fa

Company

PsiQuantum

Location

Milpitas, California

Status

Open

Posted

2026-10-08T20:21:39+00:00

PsiQuantum is hiring a Senior Mechanical Design Engineer in Milpitas, California, to create optomechanical and optoelectronic subsystem assemblies for silicon-photonics quantum computers. The job involves turning broad requirements into practical designs, rapid prototyping, carrying designs through to production, manufacturability and assembly reviews, GD&T, tolerance analysis, bills of materials, process documentation and failure/risk analysis. It asks for a mechanical engineering degree, 2–5 years of optomechanical or optoelectronic packaging experience, and work with cryogenics, optics, electronics and manufacturing colleagues. Cryogenic, vacuum and fiber-optic experience are pluses.