ASIC Test & Characterization Engineer - 1102

Quantinuum; Broomfield (CO); On-site; USD 110,000 - 160,000; Full time

Job summary

Quantinuum, based in Broomfield, CO, seeks an ASIC Test & Characterization Engineer to advance cryogenic device and circuit characterization for next-gen quantum computers. You will work closely with ASIC designers, system architects, and experimental physicists in a fast-paced R&D environment, contributing to the Apollo and Lumos projects.

The role requires hands-on testing, data collection, and the development of reliable test fixtures and interfaces for cryogenic environments.

Qualifications

• Bachelor’s degree required.
• 3+ years of relevant engineering/R&D experience.
• US Person (citizen, permanent resident, or approved visa) required.

Responsibilities

• Perform hands-on cryogenic semiconductor device and circuit characterization.
• Set up, execute, and collect data for tests.
• Collaborate with ASIC designers, system architects, and physicists.

Skills

Cryogenic testing

Test automation

Low-noise electronics

EMI/EMC knowledge

Test documentation

Clear communication

Python

Education

Bachelor's degree

Tools

Cryogenic test chambers

Test equipment

Job description

ASIC Test & Characterization Engineer - 1102 at Quantinuum, US Broomfield, CO. A mid-level full time position in the Hardware Manufacturing team, listed under hardware engineering.

We are seeking an ASIC Test & Characterization Engineer in our Broomfield, CO , ASIC team to contribute to the development of Quantinuum’s next‑generation Apollo and Lumos quantum computers. This is an opportunity for an engineer or physicist to work directly on cryogenic semiconductor device and circuit characterization required for next‑generation ion‑trap quantum computers.

In this role, you will execute hands‑on testing and characterization across multiple devices and technologies, working side‑by‑side with ASIC designers, system architects, and experimental physicists in a fast‑paced R&D environment where initiative, creativity, and technical depth truly matter.

If you’re excited by complex hardware, ultra‑low‑temperature physics, and seeing your work make it into real quantum machines, this role is for you.

All applicants for placement in safety‑sensitive positions will be required to submit to a pre‑employment drug test.

WE VALUE

• Experience testing and characterizing semiconductor devices, ASICs, or analog/digital circuits
• Experience using Python, or similar programming languages, for test automation, data acquisition, or analysis
• Authorization to work in the United States without current or future visa sponsorship
• Hands on experience with low noise analog electronics
• Understanding of EMI/EMC, grounding, and return current paths in sensitive systems
• Hands‑on experience translating electrical characterization results into models for circuit design
• Experience with cryogenic test chambers
• Familiarity with the electrical engineering challenges of quantum computers, ion traps, or similar ultra sensitive systems
• Clear communicator who produces right sized, effective design and test documentation

Quantinuum is a leading quantum computing company delivering a full stack platform designed to make quantum computing deployable in real‑world environments.

Responsibilities

• Perform hands‑on cryogenic semiconductor device and circuit characterization, including test setup, execution, and data collection
• Partner with integrated product teams to validate ASICs critical to Quantinuum’s quantum computer roadmap
• Design and develop electrical interfaces, fixtures, and test equipment for cryogenic environments
• Automate test execution and data analysis to enable fast, repeatable results
• Synthesize test results, understand their impact, and present to physicists, engineers, and leadership
• Operate cryogenic test chambers and associated lab equipment
• Collaborate with cross‑functional teams to translate system‑level requirements into clear, verifiable test plans.
• Translate system‑level quantum computer requirements and customer needs into clear, verifiable test plans
• Thrive in a rapid‑prototyping, R&D‑focused environment where iteration speed matters

Requirements

• Bachelor’s Degree Minimum
• Minimum 3+ years of relevant engineering, laboratory, or R&D experience, including graduate research
• Due to Contractual requirements, must be a U.S. Person defined as, U.S. citizen permanent resident or green card holder, workers granted asylum or refugee status