Mechanical Engineer II

Quantum Circuits, Inc.; New Haven (CT); On-site; USD 104,000 - 156,000; Full time

Job summary

D-Wave Quantum Inc. in New Haven is seeking a Mechanical Engineer to design and develop advanced hardware for state-of-the-art quantum computing systems.

You will work hands-on with cryogenic, vacuum, and electromechanical systems, transforming concepts into buildable hardware with cross-functional collaboration across engineering and manufacturing. You will prototype, test, and improve subassemblies, maintain CAD models and drawings, and apply tolerance analyses and DFM/DFA to ensure robust,

Qualifications

• Bachelor's degree in Mechanical Engineering or equivalent training and experience.
• 3+ years of professional experience in mechanical design or mechanical engineering.
• Solid modeling in a professional CAD system.
• Experience creating and interpreting detailed mechanical drawings with tolerances, fits and GD&T.
• Proficiency designing machined and sheet-metal components.
• Hands-on mechanical aptitude demonstrated via lab work, fabrication, or maintenance.
• Ability to perform first-order engineering analyses and communicate assumptions and tradeoffs.
• Strong engineering judgment, problem-solving and communication.

Responsibilities

• Design, prototype, test, and improve mechanical components and system subassemblies for complex electromechanical systems.
• Develop and maintain CAD models, drawings, BOMs, and documentation for prototypes and released designs.
• Apply mechanical engineering principles including tolerance analysis, materials selection, DFM/DFA.
• Evaluate thermal design constraints for mechanical and electromechanical hardware using hand calculations, data, FEA/CFD, or other tools.
• Support hands-on assembly, testing, and troubleshooting of prototype and system hardware; document results and changes.
• Collaborate with internal teams and suppliers to develop reliable mechanical solutions and resolve fabrication and performance issues.

Skills

Solid modeling

GD&T

Mechanical design

Hands-on

Engineering judgment

Communication

Education

Bachelor's degree in Mechanical Engineering

Tools

CAD software

Job description

D-Wave Quantum Inc. (NASDAQ: QBTS) is a leader in the development and delivery of quantum computing systems, software, and services. It is the world’s first commercial supplier of quantum computers, and the first and only to offer dual-platform quantum computing products and services, spanning both annealing and gate-model quantum computing technologies. D-Wave’s mission is to help customers realize the value of quantum today through enterprise-grade systems available on-premises and via its Leap™ quantum cloud service, which offers 99.9% availability and uptime. More than 100 organizations across commercial, government, and research sectors trust D-Wave to address complex computational challenges using quantum computing. Learn more about realizing the value of quantum computing today and how D-Wave is shaping the quantum-driven industrial and societal advancements of tomorrow: www.dwavequantum.com.

About the role

D-Wave is seeking a mechanical engineer to join our New Haven engineering team and contribute to the design and development of advanced hardware for state-of-the‑art quantum computing systems. In this role, you will work hands‑on with complex cryogenic, vacuum, and electromechanical systems, helping transform ambitious engineering concepts into reliable, buildable hardware. You will collaborate across engineering, manufacturing, and experimentation in a lab environment where mechanical design plays a critical role in advancing quantum technology.

What you'll do

• Design, prototype, test, and improve mechanical components and system subassemblies for complex electromechanical systems
• Develop and maintain CAD models, detailed drawings, bills of materials, and supporting documentation for prototype builds, design reviews, and released designs
• Apply mechanical engineering principles, including tolerance analysis, materials selection, and design for manufacturability and assembly (DFM/DFA)
• Evaluate thermal design constraints for mechanical and electromechanical hardware, including CTE mismatch, bolted‑joint behavior, heat‑transfer paths, electronics enclosure cooling, and cryogenic component thermalization, using hand calculations, test data, FEA/CFD, and other simulation tools as needed
• Support hands‑on assembly, integration, testing, and troubleshooting of prototype and system hardware; document test results, assembly methods, design changes, and lessons learned
• Collaborate with internal teams and suppliers to develop reliable, practical mechanical solutions and resolve fabrication, fit, assembly, and performance issues

About You

• Bachelor’s degree in Mechanical Engineering, or equivalent training and experience
• 3+ years of professional experience in mechanical design or mechanical engineering, with demonstrated ability to independently drive assigned design tasks from concept through build, test, documentation, and release
• Solid modeling experience in a professional CAD system
• Experience creating and interpreting detailed mechanical drawings, including tolerances, fits, and GD&T
• Proficiency designing machined and sheet‑metal components
• Demonstrated hands‑on mechanical aptitude through lab work, fabrication, equipment maintenance, machining, or similar practical experience
• Ability to perform first‑order engineering analyses and clearly communicate assumptions, results, and design tradeoffs
• Strong engineering judgment, critical thinking, problem‑solving, and communication skills

A D-Waver's DNA

• We look at the future and say “why not”; we see possibilities where others see problems or routines. We show the way ahead and are committed to achieving ambitious goals.
• We practice straight talk and listen generously to each other with empathy. We value different opinions and points of views. We ensure that we connect outside as well as inside to learn from others and inspire each other.
• We hold ourselves accountable for delivering results. We make decisions & take responsibility so that we can act & support each other.
• As leaders we motivate & engage our teams to undertake beyond what they originally thought possible, by developing our teams & creating the conditions for people to grow and empower themselves through enabling & coaching.

Our Compensation Philosophy is Simple but Powerful:

We believe providing D-Wavers with company ownership, competitive pay, and a range of meaningful benefits is the start of creating a culture where people want to give the best they’ve got — not because they’re simply making money, but because they’ve fallen in love with our vision, mission, values, and team.

During the interview process, your Recruiter will review our total rewards (base, equity, bonus, perks, benefit, culture) offerings. The final offer is determined by your proficiencies within this level.

Inclusion:

We celebrate diverse perspectives to drive innovation in our pursuit. Our employees range from distinguished domain experts with decades of experience in their respective fields, to bright and motivated graduates eager to make their mark. Our diverse and innovative team will make you feel appreciated, supported and empower your career growth at D-Wave.

The Fine Print:

No 3rd party candidates will be accepted

It is D-Wave policy to provide equal employment opportunity (EEO) to all persons regardless of race, color, religion, sex, national origin, age, sexual orientation, gender identity, genetic information, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state/provincial, local law.

The base pay range for this role is:

$104,000– 156,000 USD (New Haven)