Quantinuum

Assistant Controller - 878 We are seeking an Assistant Controller for our Broomfield, CO, or Brooklyn Park, MN, location. Quantinuum believes that employees work better, more efficiently, and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approvals. As our Assistant Controller , you will be a critical partner to the Sr. Controller and CFO, helping lead the financial reporting, accounting operations, and internal control environment for our U.S. business. Key Responsibilities: Oversee month-end close, including journal entries, reconciliations, and analysis of key balance sheet accounts. Generating financial reporting in accordance with U.S. GAAP,...

Assistant Controller - 878 We are seeking an Assistant Controller for our Broomfield, CO, or Brooklyn Park, MN, location. Quantinuum believes that employees work better, more efficiently, and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approvals. As our Assistant Controller , you will be a critical partner to the Sr. Controller and CFO, helping lead the financial reporting, accounting operations, and internal control environment for our U.S. business. Key Responsibilities: Oversee month-end close, including journal entries, reconciliations, and analysis of key balance sheet accounts. Generating financial reporting in accordance with U.S. GAAP,...

Assistant Controller - 878 We are seeking an Assistant Controller for our Broomfield, CO, or Brooklyn Park, MN, location. Quantinuum believes that employees work better, more efficiently, and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approvals. As our Assistant Controller , you will be a critical partner to the Sr. Controller and CFO, helping lead the financial reporting, accounting operations, and internal control environment for our U.S. business. Key Responsibilities: Oversee month-end close, including journal entries, reconciliations, and analysis of key balance sheet accounts. Generating financial reporting in accordance with U.S. GAAP,...

Lead Physicist - 748 We are seeking a Lead Physicist in our Broomfield, CO , location. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Build, validate, and deploy ultra-high vacuum (UHV) systems supporting both R&D and commercial quantum computing platforms Perform hands-on cleanroom assembly, integration, and validation of complex vacuum and cryogenic systems Own day-to-day operation and efficiency of the cleanroom production line, ensuring quality, safety, and throughput targets are met Identify and resolve manufacturing and quality issues using root cause corrective action (RCCA), data analysis, and continuous improvement methodologies Work closely with design teams to drive manufacturability, scalability, and reliability into system design for both current and future generation systems Develop, maintain, and improve work instructions, production...

Sr Advanced Physicist - 782 We are seeking a Sr Advanced Physicist in our Broomfield, CO location. Key Responsibilities: Work directly with other theorists and experimentalists to model trapped-ion quantum computers, measure and characterize performance, and propose methods for improvement Communicate ground-breaking results both internally and externally through publications and presentations Develop, implement, and oversee best scientific practices across the theory team YOU MUST HAVE: PhD completed prior to start Minimum of 6+ years of experience in relevant research projects (Ph.D. inclusive) Due to national security requirements imposed by the U.S. Government, candidates for this position must not be a People's Republic of China national or Russian national unless the candidate is also a U.S. citizen. Due to Contractual requirements, must be a U.S. Person. defined as, U.S. citizen permanent resident or green card holder, workers granted...

Sr. Procurement Buyer - 872 We are seeking a Sr. Procurement Buyer in our Broomfield, CO, location. Quantinuum believes that employees work better, more efficiently, and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approval. Key Responsibilities: Establish and drive procurement of materials and services in support of business requirements Procurement activities, including RFQ processes, supplier selection, purchase order placement, monitoring deliveries and services, along with monitoring supplier performance In this role, one of the primary responsibilities will be to support the procurement strategy through aligning data, analytics,...

Production Planner II - 868 We are seeking a Production Planner II in our Broomfield, CO, location to manage the material required for key quantum hardware development labs and projects. In this role, you will be responsible for ensuring material availability and production planning while optimizing costs and supporting overall project success. You will collaborate closely with scientists, engineers, procurement teams, and program managers to streamline materials planning and logistics for cutting-edge quantum technology initiatives. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Execute system-level planning (SAP) within a dynamic manufacturing environment to support engineering and NPI project timelines Achieve 95% or greater on-time delivery to MRP at the sub-assembly level, ensuring critical components are available for product builds and project milestones....

Sr. R&D Manager - Mechanical Products - 834 We are seeking a Sr. R&D Manager – Mechanical Products in our Broomfield, CO , location to lead the development and scale-up of advanced mechanical and vacuum-based hardware systems supporting next-generation quantum computing platforms. This role is responsible for owning the transition from R&D prototypes to repeatable, manufacturable products , including cryogenic systems, ultra-high vacuum (UHV) hardware, physics packages, and Magneto-Optical Trap (MOT) systems. You will lead a multidisciplinary team and partner across engineering, product technology, and manufacturing to deliver high-performance hardware with predictable yield, reliability, and operational readiness. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Lead end-to-end development of mechanical product systems from concept through pilot...

Software Test Engineer - 770 We are seeking a Software Test Engineer in our Broomfield, CO location. The Software Test Engineer will be responsible for developing test plans and test scripts using the Robot Framework and writing Python scripts for automated testing. The Software Test Engineer must have a thorough understanding of the test development lifecycle and be able to work collaboratively with cross-functional teams to ensure that software products meet the required quality standards. Quantinuum believes that employees work better, more efficiently and more collaboratively in close proximity to other employees, where ideas can be exchanged readily, and decisions can be made more quickly for the benefit of the Company and our customers. All employees should work at their assigned location; however, this role may offer the opportunity to work remotely up to 2 days per week, with approval. All applicants for placement in safety-sensitive...

Principal/Lead Photonics Design Engineer - 862 We are seeking a Principal/Lead Photonics Design Engineer at our Malta, NY location All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Provide technical leadership over the integrated photonics design efforts for development of ion traps on 300mm wafers Interact closely with our wafer fabrication partner(s) on photonic integration and fabrication process topics Participate in a team of physicists and optical engineers supporting the development of commercial and research systems for quantum computing Design and develop integrated photonic components and systems in novel ways to deliver and manipulate light across the spectrum Collaborate across disciplines (architecture, physics, photonics, fabrication, mechanical engineering) to define systems and requirements to support quantum computing and demonstrate systems meeting...

R&D Optomechanical Assembly Technician II - 855 Key Responsibilities: Assemble opto-mechanical devices, including optical components, mechanical housing, and associated hardware and cabling. Inspect incoming components, including custom machined parts, for defects and ensure compliance with design specifications and quality standards. Maintain accurate assembly records, including inspection and test reports and assembly logs. Provide feedback on design or process improvements. Identify documentation gaps and collaborate with product engineers to create or improve work instructions Perform prototype assembly and rework in collaboration with engineers; assist in developing, refining, and documenting assembly instructions, travelers, and alignment procedures for development and production use. Troubleshoot assembly-related issues in collaboration with engineers; provide feedback to improve product design and manufacturing processes Align optical beamlines by...

Sr. Advanced Cryogenic Mechanical Engineer - 833 We are seeking a Sr. Advanced Mechanical Design Engineer in our Broomfield, CO, Location. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Design and develop cryogenic systems, including refrigeration and liquefaction systems, cryostats, and cryogenic storage solutions Apply principles of thermodynamics, heat transfer, and fluid dynamics to optimize cryogenic processes Work within a fast-paced environment to turn concepts into prototype designs & iterate on these designs based on lab test results Conduct research to develop new cryogenic technologies and improve existing systems Apply mechanical design tools such as Onshape and Ansys to rapidly design and deliver cryogenic systems that meet the evolving needs of customers, ranging from prototypes to commercial products Utilize Onshape and Arena PLM...

Lead Optical Process Engineer - 673 We are seeking a Lead Optical  Process Engineer in our Broomfield, CO Location. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Establish the tooling and processes to create micro-optical and electro-optical assemblies Lead a team of physicists, optical, and opto-mechanical engineers developing R&D optical assemblies and packaging Assemble, Design, Architect, and develop optical, micro-optical, and photonic systems in new and novel ways to create, deliver and measure light in our next generation quantum computer systems Lead development and design projects that validate technologies, bonding methods, alignment methods, and tooling suppliers that result in production solutions. YOU MUST HAVE: Master’s Degree minimum Minimum 10+ years’ experience (advanced degree inclusive) with...

Quantum Computer Project/Program Engineer - 856 We are seeking a Quantum Computer Project Engineer in our Brooklyn Park, MN Location. This engineering role will collaborate with program management, subsystem manufacturing, and system production teams to develop and coordinate project plans aligned with subsystem production as well as higher-level program schedules. The Project Engineer (PE) will be accountable for the on-time delivery of quantum computer hardware and functionality to meet program needs. This role is primarily responsible for planning, tracking, and coordinating system integration and validation activities across multiple units. To do so, the ideal candidate will bring technical depth in multiple subsystems and develop it at the system level such that they can ask good questions, spot risks early, and earn the trust of the engineering team. Key Responsibilities: Develop and manage detailed schedules and weekly workflows for subsystem receipt,...

Atomic Source Physicist - 869 We are seeking an Atomic Source Physicist in our Broomfield, CO Location. Our team is leading the development, integration, and operation of atomic sources for trapped ion quantum computing systems at Quantinuum. We are looking for experimental scientists with hands-on experience building and operating complex atomic physics systems, taking and analyzing datasets, and collaboration across disciplines. The ideal candidate will have intimate knowledge of one or more advanced laboratory techniques for controlling quantum systems, which could include precision laser spectroscopy, atomic or molecular beams, or cryogenic UHV systems. They will also have excellent communication and collaboration skills as they are working with teams of engineers and other scientists to develop and test new concepts. Our scientists are thought leaders in the field, publishing papers and presenting research to peers. All applicants for placement in...

Chief Ion Trap Wafer Fabrication Scientist - 870 We are seeking a highly qualified Chief Ion Trap Wafer Fabrication Scientist in Plymouth, MN; Broomfield, CO; or Malta, NY . In this role you will work closely with a team of physicists, engineers, and technicians, as well as with our foundry partners, to drive forward all aspects of fabrication for our next generation of ion traps and related components, and to develop new and improved methods for producing higher performing and higher quality traps. This influential position will balance technical leadership, individual technical contribution, and external vendor partnership. A successful candidate will have a broad and deep understanding of wafer fabrication in both IC and MEMS environments, as well as a proven track record of advancing R&D efforts beyond the state of the art. Quantinuum believes that employees work better, more efficiently and more collaboratively in close proximity to other employees, where...

Chief Ion Trap Wafer Fabrication Scientist - 870 We are seeking a highly qualified Chief Ion Trap Wafer Fabrication Scientist in Plymouth, MN; Broomfield, CO; or Malta, NY . In this role you will work closely with a team of physicists, engineers, and technicians, as well as with our foundry partners, to drive forward all aspects of fabrication for our next generation of ion traps and related components, and to develop new and improved methods for producing higher performing and higher quality traps. This influential position will balance technical leadership, individual technical contribution, and external vendor partnership. A successful candidate will have a broad and deep understanding of wafer fabrication in both IC and MEMS environments, as well as a proven track record of advancing R&D efforts beyond the state of the art. Quantinuum believes that employees work better, more efficiently and more collaboratively in close proximity to other employees, where...

Chief Ion Trap Wafer Fabrication Scientist - 870 We are seeking a highly qualified Chief Ion Trap Wafer Fabrication Scientist in Plymouth, MN; Broomfield, CO; or Malta, NY . In this role you will work closely with a team of physicists, engineers, and technicians, as well as with our foundry partners, to drive forward all aspects of fabrication for our next generation of ion traps and related components, and to develop new and improved methods for producing higher performing and higher quality traps. This influential position will balance technical leadership, individual technical contribution, and external vendor partnership. A successful candidate will have a broad and deep understanding of wafer fabrication in both IC and MEMS environments, as well as a proven track record of advancing R&D efforts beyond the state of the art. Quantinuum believes that employees work better, more efficiently and more collaboratively in close proximity to other employees, where...

Lead Semiconductor Fabrication Scientist - 854 We are seeking a Lead Semiconductor Fabrication Scientist in our Brooklyn Park, MN Location. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Participate in all stages of development and manufacturing of microfabricated ion traps, including new concept creation, design, layout, fabrication, packaging and characterization Assess requirements of current and future ion traps, and specify or develop designs and processes meeting those requirements Generate new ideas and IP for ion trap features and components Work closely with an integrated team of scientists, engineers and technicians to translate system requirements and designs into functional hardware Proactively anticipate fabrication risks and implement mitigation strategies Lead engagements with 3rd parties to cultivate possible key partnerships, supplier...

Sr. Integrated Photonics/R&D Technician - 867 We are seeking a Senior Integrated Photonics/R&D Technician in our Albuquerque, NM Location. All applicants for placement in safety-sensitive positions will be required to submit to a pre-employment drug test. Key Responsibilities: Work with a team of engineers, physicists, and technicians to advance trapped-ion quantum computing technologies Help set up photonic and trapped-ion labs in collaboration with other technical and R&D colleagues, including optical, mechanical, electronics, and other technical systems Participate in designing, building, testing, and alignment of optical systems, including lasers and imaging systems Collaborate with colleagues to provide support on planning, development, maintenance, and management of new lab facilities Provide technical expertise and support to colleagues, assist with the resolution of lab- and equipment-related issues, and implement corrective actions as...