Senior Mechanical Design Engineer, PsiQuantum
Office located in Milpitas, CA
Quantum computer builder
Be an early applicant
Quantum computer builder
501-1000 employees
Be an early applicant
Office located in Milpitas, CA
501-1000 employees
Company mission
To build and deploy useful, fault tolerant quantum computers.
Role
Who you are
- Experience in designing mechanical assemblies for opto-electronic devices (i.e. optical transceivers or co-packaged optics and/or datacenter switching system
- Strong communication & interpersonal skills
- Willingness to support colleagues to achieve team objectives
- Exercises independent Judgement
- Continuous learning mindset
- Execution of deliverables against schedule & quality targets
- Master’s Degree or above in Mechanical Engineering or a relevant discipline
- 2-5 years of experience, with a focus on optomechanical design and/or optoelectronic packaging
- Preferred experience: Design system in cryogenic and vacuum environments is a plus
- Preferred experience: Design for liquid cooling with cold plate assemblies is a plus
What the job involves
- The Senior Mechanical Design Engineer is responsible for designing highly complex and cutting-edge optomechanical/optoelectronic subsystem assemblies
- You will be working closely with teams across a wide array of disciplines including cryogenics, optics, electronics, and manufacturing
- You will be expected to apply DFM principles on an everyday basis. Strong design skills incorporating mechanics of materials, thermodynamics, electronics, and precision design principles are a must
- Ownership of designs from prototype to production
- Expertise in Design for Manufacturability, Design for Assembly
- Expertise with GD&T
- Expertise with tolerance analysis methods
- Generate and maintain process flow documentation
- Conduct DFMEA, PFMEA & risk analysis heat maps
- Fixture design & fabrication
- Test set-up design & fabrication
- Generate & maintain BOM’s & build standards
- Ability to execute basic structural and thermal analyses to down-select designs
- Practicing proper engineering revision control, preferably with Solidwork PDM / Arena (PLM)
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 8 rounds)
Jun 2025
$1bn
GROWTH EQUITY VC
Apr 2025
$0.6m
GRANT
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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