Staff Engineer - Cryogenics

IonQ•Boston, MA

10d•$152,000 - $190,000•Onsite

About The Position

IonQ is seeking a Staff Cryogenic Engineer to support and develop a cryogenic platform for diamond-based photonic interconnects between IonQ quantum processors. This role is integral to the commercialization process for IonQ’s SiV quantum memories, with applications across quantum computing, networking, and sensing. The engineer will develop and mature cryogenic subsystems for defect-center based quantum memory nodes, transitioning R&D-scale subsystems and processes into robust, reliable elements deployable at other IonQ and/or customer sites, ensuring efficient maintenance and updates as technology evolves. The position is based onsite at our Boston, MA office and requires 10% domestic and international travel.

Requirements

Masters in physics, applied physics, mechanical engineering, or closely related field
Experience working in cryo industry for 7+ years
Experience in designing and evaluating performance of complex cryogenic systems
Experience with operating and maintaining dilution, sorption, 1K cryostats
Experience with cryogenic wiring, sensors, and heaters
Experience with UHV systems in cryogenic environment: pumping, leak detection, sealing and joining techniques
Experience with CAD systems and manufacturing

Nice To Haves

PhD in physics, applied physics, mechanical engineering, or closely related field
Experience working in cryo industry for 10+ years
Experience with managing complex production lines
Experience managing customer projects
Experience with free-space or fiber optics
Experience with working and integration of superconducting magnets