Cryogenic Electrical Interconnect Engineer

Psi Quantum's mission is to build the first useful quantum computers: machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems.

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries.

Our architecture and approachisbased on silicon photonics. Byleveragingthe advanced semiconductor manufacturing industry, including partners like Global Foundries, we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don'tfeel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure.

That approach has since been tested at the highest level of scrutiny the U.S. government applies to emerging technology, and it has held up. In 2025,Psi Quantum closed a $1 billion funding round that valued the company at $7 billion. In 2026, the U.S. Department of Commerce signed a $100 million Letter of Intent under the CHIPS and Science Act, followed by a $125 million agreement with DARPA under Stage C of its Quantum Benchmarking Initiative,Psi Quantum'smost valuable U.S. government agreement to date.

This year, we also broke ground on our utility-scale quantum computer in Brisbane, Australia, and continued building out our Chicago site. Victor Peng, our CEO, and co-founder Jeremy O'Brien, now Executive Chairman, lead a team and board that reflects how seriously the world is taking this build, joined this year by Intel's Lip-Bu Tan and Atomico's Niklas Zennstrom.

Psi Quantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies, including

Airbus,Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical, to prepare quantum solutions for real-world impact.

Quantum computing is not an extension of classical computing. Itrepresentsa fundamental shift, and a path to mastering challenges that cannot besolvedany other way. The potential is enormous, and we now havethe funding,the government validation, andthe site sunder construction to make it real.

The Cryogenic Electrical Interconnect Engineer is responsible for the design, development, integration, and testing of electrical interconnect solutions used within Psi Quantum's cryogenic systems.

This role focuses on cables, connectors, electrical feedthroughs, and PCB interconnects operating in vacuum and cryogenic environments. The engineer develops the electrical connection architecture required to interconnect components within the cryostat, provide reliable connections at cryogenic temperatures, and route electrical signals through the cryostat vacuum boundary to external equipment.

The Cryogenic Electrical Interconnect Engineer combines electrical and mechanical engineering expertise to develop interconnect solutions that meet electrical performance, thermal, mechanical, vacuum, and integration requirements. The role supports engineering activities from concept development through detailed design, component selection, qualification testing, manufacturing, installation, and troubleshooting.

The ideal candidate combines electrical interconnect expertise with strong mechanical engineering judgment and an understanding of the challenges associated with vacuum and cryogenic…