Job Description

We are seeking a Principal Vacuum Interconnect Architect – Quantum Hardware in our Broomfield, CO location to lead development of scalable interconnect architectures for our next-generation large-scale quantum computers. Future systems such as Lumos will require interconnect solutions that support orders-of-magnitude growth in qubit count, signal density, optical access, thermal performance, vacuum compatibility, and system reliability. This role is intended for a senior technical leader who can operate independently, define requirements, evaluate new technologies, guide prototype development, and make high-impact recommendations that shape the system architecture.

The ideal candidate will have deep expertise in one or more optical interconnects, electrical interconnects, advanced packaging, cryogenic systems, UHV/XHV vacuum systems, photonics, RF/electrical systems, or precision hardware for complex scientific instruments. They should be comfortable working across disciplines and translating high-level architecture goals into practical subsystem requirements, design trades, prototypes, and validation plans.

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

Key Responsibilities

• Lead the architecture and technical strategy for scalable optical and/or electrical interconnect solutions for next-generation quantum computing systems.
• Develop interconnect concepts capable of supporting million-qubit-scale system requirements, including high-channel-count connectivity, cryogenic operation, XHV compatibility, thermal constraints, signal integrity, optical performance, manufacturability, and reliability.
• Work closely with system architecture, trap fabrication, cryogenic ASIC, optics, electrical engineering, vacuum, cryogenic, mechanical, and packaging teams to define interconnect requirements and interfaces.
• Identify key technical risks and define prototype tests to retire those risks quickly and quantitatively.
• Oversee the design, fabrication, assembly, and validation of prototype interconnect hardware and subsystem demonstrators.
• Evaluate manufacturability, scalability, reliability, assembly flow, testability, and integration risk for proposed interconnect architectures.
• Mentor and develop junior engineers.
• Work closely with a small, cross-functional design team to rapidly conceptualize, validate, and deliver high-reliability designs and prototypes that solve key optical and electrical packaging challenges.
• Work with subsystem teams to identify potential technology insertions into the architecture.
• Partner with fabrication and electrical engineering teams to co-design trap-package, ASIC, and interposer-level packaging solutions.
• Communicate findings and design proposals to technical, management, and executive audiences.
• Generate and present subsystem design trade studies and analyses.

YOU MUST HAVE

WE VALUE

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 operates across 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 Opportunity Employer

Quantinuum is proud to be an equal opportunity employer. We are committed to building an inclusive workplace where all employees and applicants are treated with respect and provided equal opportunities regardless of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, ancestry, marital status, or any other characteristic protected by applicable law.

Know Your Rights: Workplace discrimination is illegal. For more information about Quantinuum, please visit our website.

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.