💼 Full-Time Position

Principal Thermal Engineer - Space Payload Design, Analysis and Modeling

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ColdQuanta
📍 Louisville, CO, United States
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Location
Louisville, United States
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Posted
June 20, 2026
Type
Full-Time
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Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms.

Location

Infleqtion has 6 office locations, operating out of Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This position is a full-time, hybrid position which will be located in our Louisville, CO office.

Position Summary

Infleqtion is seeking a highly experienced thermal analyst; this role is responsible for keeping our sensor head and electronics temperature limits in check when performing physics sequences enabling quantum sensing operations in space.

The role requires close collaboration with our prime customer(s), internal management, researchers, sy...