Senior Cryogenic Engineer for Quantum Systems

NightDragon Acquisition Corp.; Genf; On-site; CHF 115,000 - 157,000; Full time

Benefits offered by this job

Comprehensive medical, dental, and/ or

Matching 401(k) retirement plan

Unlimited PTO and paid holidays

Parental/adoption leave

Legal insurance

Home technology stipend

Job summary

IonQ is seeking a Senior Cryogenic Engineer to develop and sustain cryogenic platforms for SNSPD products, focusing on scalable, rack-mounted systems for diverse environments.

You will drive system integration across engineering, manufacturing, and external partners, ensuring maintainability and evolvability as technology advances. A strong PhD/5–7+ years track record in cryogenics is preferred.

Qualifications

• Master’s degree (PhD preferred) in a relevant field with 5–7+ years of cryogenic experience.
• Proven experience designing and maintaining complex cryogenic systems (dilution, sorption, 1 K).
• Strong knowledge of cryogenic wiring, sensors, electronics, and CAD-based design/manufacturing.

Responsibilities

• Lead system-level specification, integration, and testing of cryogenic platforms tailored to SNSPD requirements.
• Collaborate with internal teams, subcontractors, and external partners on system integration.
• Provide operational support for existing cryogenic platforms.

Skills

Cryogenic engineering

Cryostat expertise

Systems integration

CAD design & manufacturing

Sensors & electronics

Education

Master’s degree / PhD preferred in a relevant field

Job description

IonQ is seeking a Senior Cryogenic Engineer to develop and sustain cryogenic platforms for SNSPD products, focusing on scalable, rack-mounted systems for diverse environments.

You will drive system integration across engineering, manufacturing, and external partners, ensuring maintainability and evolvability as technology advances. A strong PhD/5–7+ years track record in cryogenics is preferred.