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Design - Architect II / III / Senior
IPS-Integrated Project Services
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Leads or at times assist in the development of design documentation for the following design phases; programming, master planning, schematic (Concept), preliminary (BOD), and construction…
Added just now
Software Engineer
CoreLogic Solutions, LLC
Dallas, TX
Participate in all phases of the software development lifecycle (SDLC), including requirements analysis, design, implementation, testing, deployment, monitoring, and maintenance.
Added 3 mins ago
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Engineering Technician
GPAC
Omaha, NE
- $55,000 to $70,000 USD / year
Collaborating with the Development Engineering team to improve all existing offerings and support continuous improvement initiatives
Added 3 mins ago
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Engineering Technician
GPAC
Fremont, NE
- $55,000 to $70,000 USD / year
Collaborating with the Development Engineering team to improve all existing offerings and support continuous improvement initiatives
Added 4 mins ago
DevOps Engineer
Cascade Dafo Inc
Ferndale, WA
…reliable software delivery. This role partners closely with development and IT teams to improve system reliability, automate manual work, and support secure, scalable operations across…
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Engineering Technician
GPAC
Council Bluffs, IA
- $55,000 to $70,000 USD / year
Collaborating with the Development Engineering team to improve all existing offerings and support continuous improvement initiatives
Added 4 mins ago
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Engineering Technician
GPAC
Lincoln, NE
- $55,000 to $70,000 USD / year
Collaborating with the Development Engineering team to improve all existing offerings and support continuous improvement initiatives
Added 4 mins ago
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Engineering Technician
GPAC
Plattsmouth, NE
- $55,000 to $70,000 USD / year
Collaborating with the Development Engineering team to improve all existing offerings and support continuous improvement initiatives
Added 7 mins ago
DF
Senior Database Administrator - (DBA)
Digital Federal Credit Union
Marlborough, MA
- $124,500 to $147,500 USD / year
Manage SQL Server databases through multiple product lifecycle environments, from development to mission-critical production systems
Added 7 mins ago
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Senior Database Administrator - (DBA)
Digital Federal Credit Union
Chelmsford, MA
- $124,500 to $147,500 USD / year
Manage SQL Server databases through multiple product lifecycle environments, from development to mission-critical production systems
Added 7 mins ago
Technology Delivery Leader
Genpact LLC
Chicago, IL
…industry-first accelerator, exemplifies how we scale advanced technology solutions to help global enterprises work smarter, grow faster, and transform at scale. Whether tackling complex…
Added 10 mins ago
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Electrical Engineer
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- $130,000 to $180,000 USD / year
…HVAC and building systems experience to lead the electrical design and engineering of complex commercial, industrial, and building…
Added 10 mins ago
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Electrical Engineer
GPAC
Arlington, TX
- $130,000 to $180,000 USD / year
…HVAC and building systems experience to lead the electrical design and engineering of complex commercial, industrial, and building…
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Electrical Engineer
GPAC
Forest Hill, TX
- $130,000 to $180,000 USD / year
…HVAC and building systems experience to lead the electrical design and engineering of complex commercial, industrial, and building…
Added 10 mins ago
Technical Delivery Manager - Digital Engineering
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Remote, United States
4+ years partnering with Product Management, UX design and Technical Solution teams to influence product development assisting or improving products
Added 10 mins ago
Rotational Engineer
Chart Industries
Richburg, SC
At Chart, we design and build some of the world’s most advanced cryogenic equipment - that’s how our “ Cooler By Design® ” tagline was born. But it’s not just our technology that’s cool.…
Added 10 mins ago
Senior Advanced Manufacturing Engineer
Honeywell Aerospace
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Own and lead end-to-end advanced manufacturing processes, with focus on: Process development, parameters, and optimization, tooling design and qualification, maintenance and inspection…
Added 10 mins ago
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Quality Systems Engineer, Programmatic
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Digital Transformation, Reporting & Technology Enablement
Added 10 mins ago
Network Technician/ Administrator
Kratos Defense & Security Solutions, Inc.
Anderson, SC
Provision of support in the development of network design documentation packages.
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SAP - Tech Arch - BASIS Manager - Consulting - Location OPEN
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As a Manager in Application Design and Development, you will lead the effective management and delivery of processes, solutions, and projects, ensuring a strong focus on quality and risk…
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Mid-Level Federal Budget SME (5533)
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Work with UX designers to design and enhance existing budgeting and planning functionality. This includes designing useful dashboards, input forms, reports, and workflows.
Added 10 mins ago
Front End Web Applications Developer (Mid-Level) (5664)
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Columbia, SC
Experience in Object Oriented Programming/Design, Web Development and debugging
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Federal Financial Business Analyst (Mid-Level) (5656)
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…financial management, business processes, data analytics, and technology. You will partner directly with government stakeholders to analyze complex financial and operational data, improve…
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Front End Web Applications Developer (Junior) (5660)
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Experience in Object Oriented Programming/Design, Web Development and debugging
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Associate Software Engineer
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…process from idea generation, business analysis, technical design and software development using the latest technologies and design…

ColdQuanta

Staff Quantum Physicist, Hardware Systems

Louisville, CO, United States

$190,000 to $230,000 USD / year

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Job details

Pay: $190,000 to $230,000 USD / year
Posting language: English
Posted: Nov 6, 2026

Original job description

Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. As a deep-tech startup, we embrace a results-driven, fast-paced, and customer-focused approach to innovation. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. We encourage applications from experimental physicists with expertise in Atomic, Molecular, and Optical (AMO) physics, particularly those with experience in the coherent control of quantum systems such as ultracold atoms, trapped ions, and diamond NV centers.

Role and Responsibilities

The responsibilities below represent the core scope of the role and may evolve based on business and program needs. This is a hands-on technical leadership role. Staff Quantum Physicists at Infleqtion remain deeply engaged in system development and operation while also providing technical direction, developing team members, and, where applicable, managing a small team. Depending on program needs, a Staff Quantum Physicist may lead the development of a hardware system or provide technical leadership across multiple teams.

Lead the design, integration, calibration, operation, and improvement of neutral-atom quantum computing systems and critical subsystems.
Translate program goals into technical requirements, experimental plans, performance targets, and technical direction across quantum processor design, Rydberg excitation, gate protocols, laser systems, calibration, and system integration.
Design and analyze experiments and physics-based models to improve gate fidelity, stability, availability, and processor performance; guide architecture and engineering tradeoffs.
Own critical systems through validation, troubleshooting, performance tuning, reliability improvement, and documentation; translate complex R&D objectives into prioritized work and drive cross-functional delivery.
Develop Python-based tools in Linux environments for experiment control, data analysis, calibration, automation, and operational support.
Review technical work and uphold team standards and best practices.
Manage up to six direct reports, including expectations, performance, coaching, and career development.
Contribute to hiring, proposals, intellectual property, technical roadmaps, and external technical discussions

Requirements

PhD in atomic, optical, AMO, quantum physics, or a related field, or equivalent professional experience; typically 5+ years of relevant post-PhD experience or comparable experience leading complex quantum, atomic, optical, or precision-measurement systems.
Deep hands-on experience designing, operating, or improving complex AMO or coherent-control experiments, with strong knowledge of atom-light interactions and technologies such as lasers, optical systems, acousto-optic or electro-optic modulators, RF instrumentation, and ultra-high-vacuum systems.
Proficiency with Python for experiment control, data analysis, automation, or hardware integration, plus working knowledge of Linux, command-line tools, and version control.
Demonstrated ability to turn ambiguous technical goals into executable plans and validated outcomes, lead system-level work across disciplines, and communicate effectively with specialist and non-specialist audiences.

It is a plus if you have:

Experience with neutral-atom quantum computing, Rydberg physics, optical-tweezer arrays, quantum-gate characterization and optimization, or related processor architectures; familiarity with physical error mechanisms and quantum-error-correction requirements.
Experience with advanced laser and optical systems, including short-wavelength lasers, beam delivery and shaping, optical projection, high-NA imaging, noise mitigation, feedback control, and subsystem stabilization.
Experience integrating optical, electronic, vacuum, control, and software subsystems into complex experimental platforms.
Demonstrated technical leadership through mentoring, cross-team coordination, and delivery of complex technical programs; experience contributing to proposals, patents, roadmaps, customer discussions, or government-funded R&D.

Note

This position may require access to information protected under U.S. export control laws and regulations for quantum computing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.

WORKING CONDITIONS and PHYSICAL REQUIREMENTS

Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. We ask that candidates be able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements.

TRAVEL

Up to 10% travel may be required.

Benefits

Salary Range: per year $190,000 - $230,000
100% company-paid medical, dental, vision, short/long-term disability
Employer-funded Health Savings Account
Unlimited PTO
401(k) match
Company-paid Life and AD&D Insurance
Flexible Savings Account
Paid FMLA, Maternity/Paternity Leave
Employee Assistance Program
Student Loan Repayment
Equity Program

Notice to Recruitment Agencies:

Infleqtion does not accept unsolicited resumes from agencies. Infleqtion is not responsible for any fees related to unsolicited resumes.

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