QRF Physicist at Infleqtion

Louisville, Kentucky, United States

Apply Now

Not SpecifiedCompensation

Entry Level & New Grad, Junior (1 to 2 years)Experience Level

Full TimeJob Type

UnknownVisa

Quantum TechnologyIndustries

Requirements

BS or MS in Physics, Applied Physics, or Electrical Engineering (focus in AMO, optics, or RF preferred)
0–4 years of relevant hands-on lab experience (academic or industry)
Experience aligning and operating diode lasers and optical systems
Familiarity with optical modulation hardware (AOMs, EOMs, photodiodes)
Familiarity with ultra-high vacuum and/or vapor cells used in alkali atom-based systems
Basic understanding of RF concepts such as frequency mixing, modulation, and signal detection
Experience with data acquisition and control software, e.g., LabVIEW, Python, or MATLAB
Strong documentation, communication, and teamwork skills (desired)
Experience with single or multi-photon atomic spectroscopy techniques, e.g., electromagnetically induced transparency (EIT) (desired)
Familiarity with RF measurement tools (VNA, spectrum analyzer, signal generator) (desired)
Experience with opto-mechanical CAD tools or experimental modeling software (desired)
Curiosity and drive to work across optics, electronics, and RF domains (desired)
Up to 10% local travel may be required
Ability to lift up to 40 lbs and comply with all safety procedures and PPE requirements
Compliance with ITAR/EAR regulations for handling technical data

Responsibilities

Support experimental work involving Rydberg atom–based RF sensors and subsystems
Assist in the design, assembly, and alignment of laser, optical, and RF systems
Operate and troubleshoot laboratory instrumentation, including photodiodes, spectrum analyzers, signal generators, and oscilloscopes
Contribute to integration of optical, electronic, and RF components into compact, ruggedized systems
Perform measurement campaigns to characterize sensitivity, noise, and dynamic range of prototype devices
Support modeling and data analysis for atomic and electromagnetic phenomena using Python, Ansys, or similar tools
Work closely with physicists and RF engineers to iterate design improvements and document experimental findings
Participate in internal reviews and external reporting (technical memos, figures, and presentations)
Maintain accurate lab documentation and ensure proper handling of technical data subject to ITAR/EAR regulations

Skills

Key technologies and capabilities for this role

Rydberg atomsRF sensingAMO physicslaser systemsoptical alignmentspectrum analyzerssignal generatorsoscilloscopesPythonAnsyselectromagnetic modelingdata analysis

Questions & Answers

Common questions about this position

Is this position remote or hybrid?

The position is hybrid.

What education and experience are required for the QRF Physicist role?

A BS or MS in Physics, Applied Physics, or Electrical Engineering with a focus in AMO, optics, or RF is required, along with 0–4 years of relevant hands-on lab experience.

What key technical skills are needed for this job?

Required skills include experience aligning and operating diode lasers and optical systems, familiarity with optical modulation hardware like AOMs and EOMs, familiarity with ultra-high vacuum or vapor cells, basic RF concepts, and experience with data acquisition software such as LabVIEW, Python, or MATLAB.

What is the work environment like at Infleqtion?

The role involves working in a hands-on lab environment in a highly interdisciplinary setting with physicists and RF engineers, supporting experimental work on Rydberg-atom-based RF sensing systems.

What makes a strong candidate for this QRF Physicist position?

Ideal candidates are early-career physicists with experience in experimental AMO physics, a working understanding of RF systems, and hands-on lab skills in optics, lasers, and data analysis tools like Python.

Infleqtion

Develops quantum-enabled products and software

About Infleqtion

ColdQuanta develops quantum technology products that focus on smaller, portable devices rather than large quantum computers. Their offerings include quantum sensors and devices like Atomic Prisms and ion devices, which ensure data integrity from the edge to the computer. ColdQuanta provides both individual components and complete plug-and-play solutions, catering to research labs and quantum machine development. Additionally, they have created a quantum software platform called Superstaq, which allows users to write quantum programs in any language and target any quantum computer, achieving significant performance improvements. Their partnership with the Department of Energy enhances their resources and expertise, aiding in the commercialization of quantum technologies. ColdQuanta's goal is to make quantum technology accessible to a broader range of businesses and individuals.

Boulder, ColoradoHeadquarters

2007Year Founded

$293.6MTotal Funding

GRANTCompany Stage

Hardware, Government & Public Sector, Enterprise SoftwareIndustries

51-200Employees

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Unlimited Paid Time Off

401(k) Company Match

Paid Maternity/Paternity Leave

Student Loan Repayment

Family Leave

Short Term & Long Term Disability

Stock Options

Company Equity

Risks

Increased competition from companies like Diraq may pose competitive disadvantages.

Regulatory hurdles in the UK could delay Infleqtion's manufacturing line establishment.

Reliance on government grants poses risks if future funding is reduced or not renewed.

Differentiation

Infleqtion focuses on edge computing with portable quantum-enabled devices.

Their Superstaq platform offers 10x performance gains on standard quantum benchmarks.

Infleqtion's products include unique offerings like Atomic Prisms and Tiqker quantum clocks.

Upsides

Growing demand for quantum sensors in autonomous vehicles benefits Infleqtion's products.

Infleqtion's expansion in the UK supports its foundational role in quantum technology.

Collaboration with tech giants could enhance Infleqtion's market reach and innovation.

Land your dream remote job 3x faster with AI

Try Jobo Free