Senior Mechanical Design Engineer, PsiQuantum
$170-187k
Plus equity
Office located in Milpitas, CA
Quantum computer builder
Open for applications
Quantum computer builder
501-1000 employees
Open for applications
$170-187k
Plus equity
Office located in Milpitas, CA
501-1000 employees
Company mission
To build and deploy useful, fault tolerant quantum computers.
Role
Who you are
- Master’s Degree in Mechanical Engineering or a relevant discipline
- Minimum 5 years of experience; Preferred – 10 years of experience
- Working knowledge of DfM and design issues associated with volume production, ideally with direct experience
What the job involves
- The Senior Mechanical Design Engineer is responsible for designing and qualifying the performance of innovative electro-optical subsystems, working closely with electronics packaging, systems integration and edge coupling teams
- Ability to work independently with limited direction, in a team environment across functional and organizational boundaries is required
- Assist with systems architecture development at the sub-system level
- Perform large or complex portions of projects where responsibility includes definition, completion, technical quality, across teams
- Provides frequent written and oral presentations, status reports, and updates, for a variety of audiences
- Ability to accept constructive feedback from resident experts and coordinate communications between different groups
- Serve as mentor to younger engineers
- Ability to distill complex mechanical issues and drive convergence amongst electrical, optical & packaging teams
- Mechanical design work, including:
- Strong mechanical design and analysis skills, expertise in GD&T
- Generate & maintain BOM’s & build standards
- Generate and maintain process flow documentation
- Integration of CAD files across multiple teams
- Fixture design & fabrication
- Test set-up design & fabrication
- Generating & maintaining a Specification Tree
- Generating & maintaining a Drawing Tree for builds & variants
- Management of builds through the use of PDM / Arena
- Tolerance analysis – RSS & worst case
- DFMEA & risk analysis heat maps
- Input & maintain workflow documentation in MES
- Perform simple simulations of structural deflections, stresses
Our take
Quantum computing will change the world more than any other imminent technological development, and PsiQuantum sits at the forefront of the charge to build the first quantum computer that will actually work.
The company is unique for the scale of their ambitions. Rather than focusing on what they term “intermediate milestones” like building smaller proof of concept systems, PsiQuantum builds the first large-scale, error-corrected computer, using photonics to deliver over 1,000,000 qubits (current quantum machines have yet to cross the 1,000 qubit mark).
There are plenty of companies building quantum computers, including the likes of IBM and Google, but these prototypical machines lack the size to correct errors, making them exponentially less useful than what PsiQuantum aims for. While other companies operate in the same sphere, PsiQuantum is unequivocally a leader in its field, founded by world-class academics and recently securing $1B in funding, making it the largest funding round for a quantum computing startup.
Steph
Company Specialist at Welcome to the Jungle
Insights
16% employee growth in 12 months
Company
Funding (last 2 of 7 rounds)
Jun 2025
$1bn
GROWTH EQUITY VC
Jun 2024
$125m
CONVERTIBLE
Total funding: $2.7bn
Company benefits
- Financial & Retirement: 401(k) with company match, equity grants, and access to financial wellness tools and planning resources.
- Health: Competitive health coverage for you and your dependents that go beyond your standard medical, dental & vision.
- Wellness: $200 quarterly health reimbursement, 12 therapy + 6 coaching sessions with Modern Health for you and depndents, and annual membership to Care.com.
- Time Off: Discretionary Time Off (DTO) for full-time employees in addition to federal holidays and an end-of-year company shut-down.
- Family Leave: 12 weeks of paid parental leave with the support of a dedicated leave consultant.
- Flexible WOrk: Work in office, hybrid, or remote depending on your team and location.
Company HQ
Palo Alto, CA
Leadership
Jeremy O'Brien
(Co-Founder & CEO)Prior to founding PsiQuantum, researched and taught at universities across the world, including Bristol, Stanford, Osaka, Sydney and Queensland.
Mark Thompson
(Co-Founder & Chief Technologist)Previously worked as an R&D Engineer at Toshiba and was a research fellow at the University of Cambridge. Is currently a Professor of Quantum Photonics at Bristol University as well as Chief Technologist at PsiQuantum.
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