Senior Mechanical Engineer, Quantum Systems at IonQ Network and Security, Geneva

Job Description

IonQ’s Network and Security division in Geneva is hiring a Senior Mechanical Engineer to develop the mechanics of its quantum systems, from requirements to detailed designs and verified assemblies. The job combines 3D CAD and documentation, engineering calculations, thermal simulation and hands-on testing of heat dissipation and mechanical performance, in close collaboration with optical, electronic and system engineers. Familiarity with cryogenic systems is an advantage.

At a glance

• Role: Senior Mechanical Engineer
• Team: Quantum Platform – Network and Security
• Location: Geneva, Switzerland
• Experience: Bachelor’s or master’s degree and 5+ years
• Languages: English required; French a plus
• Apply: open until filled (re-checked 14 October 2026)

What the role covers

• Own mechanical design from prototype to industrial product, including CAD documentation, assembly bring-up and validation testing
• Drive thermal management, dimensional stability and manufacturability through design, simulation and optimisation
• Run thermal simulations of temperatures, gradients and heat flows, and correlate models with lab measurements
• Optimise interfaces and block specifications with optical, electronic and system engineers
• Work with external suppliers to prototype and manufacture parts, and act as a mechanical subject-matter expert across projects

What IonQ is looking for

• A bachelor’s or master’s degree in mechanical engineering, microtechnology or equivalent
• At least five years of mechanical design and product development
• Hands-on design with sheet metal and machined parts, and thermal dissipation solutions for compact systems
• Knowledge of relevant norms and compliance requirements
• A rigorous, organised and proactive way of working, and fluent English

Nice to have

• Familiarity with cryogenic systems
• French

Pay and location

IonQ’s posting does not state a salary for this Geneva role. Check the posting for contract details and Swiss work-permit requirements.

How to apply

Apply through the official IonQ job posting. IonQ’s posting does not give a closing date, so the role is open until filled; ResearchJobs.in will re-check this listing on 14 October 2026. Check the posting for location and work-authorisation details before you apply.

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