Salary Range: 135000 to 181000 (Currency: USD) (Pay period: per-year-salary)

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.

Key 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

YOU MUST HAVE:

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

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. With active engagements spanning pharmaceuticals, material science, financial services, government, industrial sectors, and leading academic and research institutions worldwide, we are helping organizations unlock the transformative potential of quantum computing.

Our global team of more than 800 employees includes many of the world's leading scientists, engineers, and researchers, with more than 70% of our technology team holding advanced degrees at the Master's or PhD level. Headquartered in Broomfield, Colorado, Quantinuum operatesacross the United States, United Kingdom, Germany, Japan, and Singapore.

By joining Quantinuum, you’ll help shape the future of quantum computing, pushing the limits of technology, and making the impossible possible.

What’s in it for you?

We believe our people are our greatest strength and offer a comprehensive rewards package that supports your professional growth, well-being, and long-term success.

Competitive compensation and the opportunity to work on groundbreaking technology
Flexible work arrangements that support work-life balance
Employer-subsidized medical, dental, and vision insurance
401(k) retirement savings plan with company match and student loan repayment benefit
Equity opportunities
Generous paid time off, sick leave, and 12 paid holidays annually
Paid parental leave
Employee discount programs

Equal Employment Opportunity

Quantinuum is an equal opportunity employer. We make employment decisions based on job-related qualifications and business needs, without regard to race (including traits historically associated with race, such as hair texture and protective hairstyles), color, religion, creed, sex, pregnancy, childbirth or related medical conditions, sexual orientation, gender, gender identity or expression, national origin, ancestry, citizenship or immigration status, age, physical or mental disability, serious medical condition, genetic information, marital status, spousal affiliation, military status, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. Consideration of citizenship or immigration status is limited to cases where a law, regulation, executive order, or government contract requires it.

Quantinuum is a federal contractor and provides equal employment opportunity to qualified individuals with disabilities and protected veterans.

We provide reasonable accommodations for disabilities, serious medical conditions, pregnancy-related needs, and sincerely held religious beliefs. To request an accommodation at any stage of the application or interview process, contact [email/link].

Know Your Rights: Workplace discrimination is illegal. [https://www.eeoc.gov/poster]

Export Control Notice (U.S. Positions)

Some Quantinuum positions involve access to technology or software subject to U.S. export control laws, including the Export Administration Regulations. For these positions, Quantinuum may need to obtain U.S. government authorization, such as an export license, before a candidate who is not a “U.S. person” can access controlled technology. “U.S. persons” include U.S. citizens and nationals, lawful permanent residents, and individuals granted asylum or refugee status. Quantinuum may ask candidates for information needed to determine whether authorization is required. Any hiring decision on this basis will turn on whether required authorization can be obtained. Quantinuum does not otherwise consider citizenship, immigration status, or national origin.

We are committed to making our recruitment process accessible to all. If you require any reasonable adjustments at any stage of the application or interview process, please let us know use the Lets talk contact form.

Applications will be accepted on an ongoing basis, there is no application deadline for this position.

Quantinuum

ASIC Test & Characterization Engineer

About the Job

Requirements

Responsibilities

Desired Qualifications

Key Responsibilities:

YOU MUST HAVE:

WE VALUE:

About the Company

Quantinuum

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