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Lead Engineer
PwC
Columbia, SC · Spartanburg, SC
As a Lead Engineer you will guide the design, build, testing, and modernization of custom applications across cloud-native and on-premise environments, using modern engineering approaches,…
Added 1 min ago
Senior Lead Engineer
PwC
Columbia, SC · Spartanburg, SC
As a Senior Lead Engineer you will lead custom application development and testing efforts that help clients turn business needs into scalable software solutions across cloud-native and…
Added 1 min ago
Senior Telecom Engineer
Maximus
Columbia, SC
Maximus is seeking an experienced Senior Telecom Engineer to lead the design, implementation, and optimization of Genesys Cloud solutions. This role is responsible for executing large-scale…
Added 13 mins ago
C
Staff Quantum Physicist, Hardware Systems
ColdQuanta
Louisville, CO
- $190,000 to $230,000 USD / year
…team. Depending on program needs, a Staff Quantum Physicist may lead the development of a hardware system or provide technical leadership across multiple…
Added 13 mins ago
Staff Software Engineer, Infrastructure
Google
Sunnyvale, CA
8 years of experience with software development in one or more programming languages (e.g., Go, Python, Rust, or C++).
Added 14 mins ago
2027 Trajectory Optimization Engineer
The Aerospace Corpor
Colorado Springs, CO
…with one or more of the following programming languages/tools: Python, C/C++, Fortran, MATLAB. - Willing to travel domestically to customer and contractor facilities (approx. 10%) - This…
Added 14 mins ago
Senior Lead Engineer
PwC
Denver, CO
As a Senior Lead Engineer you will lead custom application development and testing efforts that help clients turn business needs into scalable software solutions across cloud-native and…
Added 15 mins ago
Network Fiber Delivery Manager [Americas]
Meta
Denver, CO
…backbone for AI data centers? Do you want the opportunity to lead a team working at the intersection of cutting-edge engineering and capital investments - driving clarity and execution…
Added 15 mins ago
Lead Engineer
PwC
Denver, CO
As a Lead Engineer you will guide the design, build, testing, and modernization of custom applications across cloud-native and on-premise environments, using modern engineering approaches,…
Added 15 mins ago
Senior Telecom Engineer
Maximus
Denver, CO
Maximus is seeking an experienced Senior Telecom Engineer to lead the design, implementation, and optimization of Genesys Cloud solutions. This role is responsible for executing large-scale…
Added 15 mins ago
Network Strategy & Data Analytics Lead
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…capacity. We are seeking a Network Strategy & Data Analytics Lead to develop digital infrastructure and terrestrial network strategies and drive investment recommendations. You will frame…
Added 45 mins ago
Clinical Data Associate
Lilly
Indianapolis, IN
Coordinate/lead data management milestones for data transfers and database locks.
Added 45 mins ago
LillyDirect Pharmacy Master Data Technical Lead
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Indianapolis, IN
Lead design and delivery of batch and near-real-time pipelines in Python and PySpark on Databricks and AWS.
Added 45 mins ago
LillyDirect Pharmacy DevOps Engineer
Lilly
Indianapolis, IN
Partner with the technical lead, data engineers, and architecture and security teams to improve developer productivity and release quality.
Added 45 mins ago
LillyDirect Pharmacy Data Engineer
Lilly
Indianapolis, IN
…and optimize data models, working closely with the Technical Lead, DevOps engineer, architects, and business analysts. You will need strong skills in data integration, acquisition,…
Added 1 hour ago
Staff Machine Learning Engineer - Edge AI
Samsara
Remote, United States
Lead design and implementation of critical AI product initiatives on Edge devices.
Added 1 hour ago
Technical Project Manager
Leidos
Huntsville, AL
Lead the planning and execution of multiple technical projects and Task Orders within a complex, software-intensive defense portfolio, with responsibility for technical performance,…
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Senior C/C++ Embedded Software Engineer/Analyst
Intuitive Research and Technology Corporation
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…and system testing. You’ll utilize Visual Studio, VxWorks, Python, and other programming languages and tools in support of S3I’s mission. You’ll report your technical status and progress on…
Added 1 hour ago
Market Research & Analytics Senior Manager
Sumitomo Pharma
Jefferson City, MO
+ Lead quantitative and qualitative research across healthcare professional, patient, payer, caregiver, and relevant office staff audiences.
Added 1 hour ago
Senior Software Developer - Environmental Services
Burns & McDonnell
Kansas City, MO
Description A Senior Software Developer is responsible for client success by creating and implementing innovative solutions to complex business challenges. Within the Environmental Services…
Added 1 hour ago
Lead Site Reliability Engineer - Remote
SitusAMC
Jefferson City, MO
+ Experience in Scripting and Automation using any Scripting Language preferably Python
Added 1 hour ago
Director, Data Platform Engineering, Bureau of Data Technology & Strategy
City of New York
Long Island City, NY
-Lead communication, planning, and coordination among stakeholders for projects.
Added 1 hour ago
Blue Cruise Core Integration Engineer
Ford Motor Company
Dearborn, MI
Lead and support validation and verification of upgrades and enhancements to BlueCruise features, especially in-vehicle validation.
Added 1 hour ago
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Senior Machine Learning Engineer
Jobgether
Remote, United States
- $134,400 to $168,000 USD / year
…accurate, reliable customer experiences. In this role, you will lead the development of computer vision and multimodal models, taking innovative approaches from experimentation through…
Added 1 hour ago
Software Verification Engineer
NVIDIA Corporation
North District, IL
…top of NVIDIA ConnectX and BlueField network cards. You will lead feature verification from design through implementation to integration into frameworks, develop robust infrastructure, and…

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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