Senior Mechanical Engineer

About the role

We are seeking a Senior Mechanical Engineer to join our R&D team in Geneva. In this hands-on role, you will design, validate, and continuously improve mechanical enclosures and subsystems that integrate optical and electronic components for our quantum products.

Responsibilities

• Own mechanical design from prototype to industrialised product, including CAD documentation, assembly bring-up, and validation testing
• Drive thermal management, dimensional stability, and manufacturability through design, simulation, and optimization
• Perform thermal simulation to predict temperatures, gradients, and heat flows
• Correlate models with lab measurements and iterate designs accordingly
• Collaborate with optical, electronic, and system engineers to optimise interfaces and block specifications
• Engage with external suppliers to prototype and manufacture parts efficiently

Required skills

• Mechanical design
• Product development
• 3D modelling
• Thermal simulation
• Sheet metal design
• Machined parts design

Nice to have

• Cryogenic systems
• French language

Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering, Microtechnology, or equivalent

Benefits

• Medical insurance
• Dental insurance
• Vision insurance
• 401(k) matching
• Unlimited PTO
• Paid holidays
• Parental leave
• Adoption leave
• Legal insurance
• Home technology stipend

About the Company

IonQ, Inc. is the world’s leading quantum platform and merchant supplier, delivering integrated quantum solutions across computing, networking, sensing, and security. The company is making quantum platforms more accessible and impactful, with services available through all major cloud providers.