Is the Senior Mechanical Engineer role remote?

No — this is an on-site role in Geneva, Switzerland.

How much experience is required?

At least 5 years of relevant experience for this Senior Mechanical Engineer role.

Where is the role based?

IonQ is hiring for this position in Geneva, Switzerland.

What seniority level is this role?

IonQ targets senior candidates for this position.

Is this full-time or contract?

Full-time for this Senior Mechanical Engineer role at IonQ.

Senior Mechanical Engineer at IonQ

Joblaze summary

In this hands-on role, the Senior Mechanical Engineer at IonQ is responsible for designing and refining mechanical enclosures and subsystems for quantum computing products, ensuring they meet stringent performance and manufacturability standards. The position requires expertise in CAD modeling, thermal management, and collaboration with cross-functional teams, particularly in the context of compact and cryogenic systems. Ideal candidates will have a strong mechanical engineering background with at least five years of relevant experience, and a proactive approach to problem-solving in a multidisciplinary environment.

Joblaze insights

Listed yesterday — first seen on Joblaze October 3, 2026. Last confirmed on IonQ's careers page October 3, 2026.
This exact title is also open at 1 other location at IonQ: Geneva, Switzerland.

Quick facts

Is the Senior Mechanical Engineer role remote?: No — this is an on-site role in Geneva, Switzerland.
How much experience is required?: At least 5 years of relevant experience for this Senior Mechanical Engineer role.
Where is the role based?: IonQ is hiring for this position in Geneva, Switzerland.
What seniority level is this role?: IonQ targets senior candidates for this position.
Is this full-time or contract?: Full-time for this Senior Mechanical Engineer role at IonQ.

From the original posting

About IonQ:

What to Expect

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.

You will take ownership of mechanical solutions from early prototyping through to industrialized product release, with a strong focus on delivering compact, robust, and cost-effective designs. Your work will ensure compliance with dimensional, thermal, and manufacturability requirements, including for highly demanding applications such as cryogenic systems.

What You'll be Doing

You will be responsible for the mechanical development of cutting-edge quantum systems, translating requirements into detailed designs and verified assemblies. This includes 3D modelling and documentation, engineering calculations and simulations, and hands-on testing to validate thermal dissipation and mechanical performance. You will collaborate closely with optical, electronic, and system engineers to optimise interfaces and block specifications, and you will engage with external suppliers to prototype and manufacture parts efficiently. As a senior contributor, you will help improve design practices, promote a rigorous engineering approach, and support multiple projects as a mechanical subject-matter expert.

Own mechanical design from prototype to industrialised product, including CAD documentation, assembly bring-up, and validation testing
Drive thermal management (heat sinking, conduction/convection, interfaces and materials), dimensional stability, and manufacturability through design, simulation, and optimization, working closely with cross-functional teams and suppliers
Perform thermal simulation to predict temperatures, gradients, and heat flows; correlate models with lab measurements and iterate designs and their optimization accordingly

What you'll Bring

We are looking for a candidate with a Bachelor’s or Master’s degree in Mechanical Engineering, Microtechnology, or equivalent, and at least five years of relevant experience in mechanical design and product development. You have hands-on experience designing with sheet metal and/or machined parts, and a strong ability to develop thermal dissipation solutions for compact systems. Familiarity with cryogenic systems is an advantage.

You are rigorous, organised, and proactive, able to work independently while collaborating effectively in a multidisciplinary and Agile environment. Strong communication skills are essential, with fluency in English required; French is considered a plus.

Solid mechanical engineering foundation with proven experience delivering compact, industrial-grade designs
Structured, collaborative engineer with strong communication skills and a hands-on approach to validation
Knowledge of applicable norms and compliance requirements, including EMC and electrical/product safety aspects

You'll be a great fit if:

You bring a track record of taking ownership of mechanical subsystems across multiple development phases—requirements, design, verification, and industrialisation—and you are comfortable acting as the mechanical reference point within a multidisciplinary R&D team. Experience with compact thermal management and exposure to cryogenic constraints are strong assets.

Compensation will vary based on individual factors such as education, qualifications, and experience of the final candidate(s), specific office location, and calibration against relevant market data and internal team equity. Posted base salary figures are subject to change as new market data becomes available. Our benefits include comprehensive medical, dental, and vision plans, matching 401(k), unlimited PTO and paid holidays, parental/adoption leave, legal insurance, and a home technology stipend. Details of participation in these benefit plans will be provided when a candidate receives an offer of employment.

Standard company text repeated across IonQ's postings is omitted here.

Senior Mechanical Engineer

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