Top 39 Physicist Jobs in Broomfield Co

Applied Physicist - Quantum RF Sensing (QRF)
Infleqtion —Louisville, CO
- $145,000 - $170,000 a year
- Full-time
- Master's degree
- Doctor of Philosophy
- Travel
- Paid parental leave
- Health savings account
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14d
Senior Atomic Clock Research Physicist
US National Institute of Standards and Technology —Boulder, CO
- $118,675 - $182,316 a year
- Online Application
- Background check
- Pass drug screening
- Travel
6d
Atomic Clock Research Physicist
US National Institute of Standards and Technology —Boulder, CO
- $83,265 - $129,742 a year
- Online Application
- Background check
- Pass drug screening
- Mid-level
6d
Optical Physicist
Atom Computing —Boulder, CO
- $160,000 - $185,000 a year
- Full-time
- Doctor of Philosophy
- Senior level
- Python
- Disability insurance
- Health insurance
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Ionospheric Scientist and Modeling Lead
Lynker Corporation —Boulder, CO
- $95,000 - $140,000 a year
- Full-time
- Remote
- 5 years
- Analysis skills
- Doctor of Philosophy
- Paid holidays
- Disability insurance
Staff Quantum Physicist
Infleqtion —Boulder, CO
- $166,000 - $256,000 a year
- Full-time
- Hybrid work
- Management
- 5 years
- Office
- Paid parental leave
- Health savings account
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Ion Transport Physicist - 893
Quantinuum —Broomfield, CO
- $148,000 - $185,000 a year
- Full-time
- Hybrid work
- 5 years
- Pass drug screening
- Doctor of Philosophy
- Paid parental leave
- Paid holidays
Lead Experimental Physicist
Xcimer Energy —Denver, CO
- $200,000 - $225,000 a year
- Full-time
- Doctor of Philosophy
- Mentoring
- Fair chance
- Paid parental leave
- Paid holidays
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Computational Physicist - Fluid Dynamics
Xcimer Energy —Denver, CO
- $160,000 - $200,000 a year
- Full-time
- Office
- Analysis skills
- C++
- Paid parental leave
- Paid holidays
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6d
Quantum Physicist (Quantum Computing)
Infleqtion —Boulder, CO
- $115,000 - $165,000 a year
- Full-time
- Hybrid work
- Writing skills
- Assembly
- Math
- Paid parental leave
- Health savings account
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Staff Quantum Sensor Physicist
Infleqtion —Boulder, CO
- $166,000 - $256,000 a year
- Full-time
- 5 years
- Office
- Doctor of Philosophy
- Paid parental leave
- Health savings account
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Professional Research Assistant
University of Colorado Boulder —Boulder, CO
- $40,000 - $55,000 a year
- Part-time
- University
- Military encouraged
- Entry level
- Health insurance
- Dental insurance
Lead Experimental Physicist - 570
Quantinuum —Broomfield, CO
- $160,000 - $200,000 a year
- Full-time
- Pass drug screening
- 8 years
- Doctor of Philosophy
- Paid parental leave
- Paid holidays
Lead Quantum Hardware Physicist - 790
Quantinuum —Broomfield, CO
- $164,000 - $205,000 a year
- Full-time
- Pass drug screening
- 8 years
- Doctor of Philosophy
- Paid parental leave
- Paid holidays
Atomic Source Physicist - 869
Quantinuum —Broomfield, CO
- $135,000 - $180,000 a year
- Full-time
- 5 years
- Pass drug screening
- Doctor of Philosophy
- Paid parental leave
- Paid holidays
Earth Atmosphere Temporary Researcher
University of Colorado Boulder —Boulder, CO
- $40.82 an hour
- Full-time
- University
- Doctor of Philosophy
- Military encouraged
- Paid sick time
3d
Laser Physicist
Xcimer Energy —Denver, CO
- $140,000 - $190,000 a year
- Full-time
- Management
- Bachelor of Science
- Office
- Paid parental leave
- Paid holidays
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Senior Pulsed Power Physicist
Xcimer Energy —Denver, CO
- $170,000 - $200,000 a year
- Full-time
- 5 years
- Office
- Analysis skills
- Paid parental leave
- Paid holidays
Quick Apply
Plasma Computational Scientist
ELECTRO MAGNETIC APPLICATIONS INC —Lakewood, CO
- $90,000 - $125,000 a year
- Laboratory experience
- Mid-level
- Doctor of Philosophy
Quick Apply
Part-Time Radioactive Materials Licensing Physicist (PT)
Rocky Mountain Cancer Centers —Denver, CO
- $90,000 - $130,000 a year
- Part-time
- Doctoral degree
- 3 years
- Master's degree
- Wellness program
- Health savings account

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physicist jobs near broomfield co

Applied Physicist - Quantum RF Sensing (QRF)

Infleqtion -
Louisville, CO

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Job Details

Full-time
$145,000 - $170,000 a year
14 days ago

Benefits

Paid parental leave
Health savings account
AD&D insurance
Loan repayment program
Disability insurance
Health insurance
Unlimited paid time off
Dental insurance
Flexible spending account
Parental leave
Employee assistance program
Vision insurance
401(k) matching

Qualifications

Thermal analysis
Laboratory experiment design
Instrumentation troubleshooting
Automation
Technical documentation
Electromagnetic theory
Design of experiments
Physics research
Equipment troubleshooting
Technical report writing
Optics
Collaboration with product development teams
RF signal diagnostics
Engineering research
Technical research projects
Software development
Electrical troubleshooting
Radio frequency (RF) testing
Technical troubleshooting support
Mechanical troubleshooting
Data analysis software

Full Job Description

Infleqtion is a global quantum technology company solving some of the world’s most challenging problems. We build and integrate quantum computers, sensors, and networks. From fundamental physics to leading-edge commercial products, Infleqtion enables “quantum everywhere” through an ecosystem of devices and platforms.

Quantum Spectrum, also known as QRF, develops fieldable radio-frequency sensing systems based on Rydberg atoms. The team combines atomic physics, lasers and photonics, RF electronics, embedded controls, software, and precision hardware to turn laboratory prototypes into repeatable, integrated sensing systems.

Position Summary

Infleqtion is seeking an Applied Physicist to build, operate, and improve experimental platforms for Rydberg-atom radio-frequency sensing. Reporting to the Director of R&D, Quantum RF, this physicist will independently own defined experiments and testbeds under senior technical direction, translate atomic, optical, and RF behavior into measurable sensor improvements, and carry validated improvements into integrated QRF systems. The role is centered on hands-on laboratory work; modeling supports experiment design and interpretation rather than serving as the principal output.

Job Responsibilities

The duties and responsibilities below describe the essential functions of the role. Depending on business needs, the position may perform some or all these duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time with or without notice.

Own defined experimental campaigns addressing QRF sensitivity, noise, stability, bandwidth, dynamic range, and repeatability.
Build, align, commission, operate, maintain, and troubleshoot persistent testbeds that integrate lasers and optics, atomic-sensing hardware, RF and electronic instrumentation, controls, and data acquisition.
Design and execute controlled experiments that isolate performance limitations and convert results into specific hardware, operating-point, calibration, or control-system improvements.
Integrate validated experimental improvements into sensor heads, subsystems, and complete QRF systems; verify performance against quantitative requirements and documented test methods.
Characterize vapor cells and RF resonators, including thermal, optical, geometric, material, field-delivery, and repeatability effects that influence sensor performance.
Establish and maintain laser-frequency locks, optical-power stability, photodetection, and associated noise-characterization methods.
Calibrate and characterize RF delivery through electrodes, resonators, antennas, TEM or GTEM cells, and related test configurations using appropriate RF and microwave instrumentation.
Develop automated instrument-control, parameter-sweep, optimization, calibration, and data-analysis workflows using Python or comparable scientific tools.
Analyze experimental data with appropriate uncertainty, noise, and repeatability treatment; use atomic, optical, or electromagnetic models to guide experiments, interpret results, and investigate discrepancies among predicted, benchtop, subsystem, and integrated-system performance.
Translate findings into design recommendations, configuration records, test procedures, technical reports, and verification evidence that engineers and technicians can reproduce.
Work with RF, optical-mechanical, electrical, embedded-software, systems, and technician personnel to make experimental configurations stable, maintainable, and transferable.
Provide occasional support for laboratory or field demonstrations and customer-program testing as assigned, following applicable safety, export-control, configuration-control, and documentation requirements.

Requirements

Bachelor’s degree in physics, applied physics, optical engineering, electrical engineering, or a closely related field plus at least four years of relevant hands-on experimental experience; a master’s degree plus at least two years; or a PhD with directly relevant experimental research. Equivalent combinations of education and experience will be considered.
Demonstrated hands-on experience personally building, aligning, operating, and troubleshooting complex experimental apparatus that integrates two or more of the following: lasers or optics, electronics, RF or microwave hardware, thermal or mechanical hardware, and software or controls.
Practical experience with laser and optical alignment, photodetection, electronic instrumentation, and diagnosis of noise, stability, or performance limitations.
Working knowledge of RF measurements and experience using equipment such as signal generators, spectrum analyzers, oscilloscopes, or vector network analyzers.
Ability to design controlled experiments, analyze noisy data, assess measurement uncertainty and repeatability, and draw defensible conclusions from incomplete or conflicting results.
Experience automating experiments and analyzing data using Python or a comparable scientific programming environment.

Ability to independently plan and execute defined laboratory work, document results clearly, and collaborate across physics, engineering, and product disciplines while seeking senior direction for broader architecture and scientific strategy.
Comfortable working in a fast-moving environment where designs, schedules, and supplier constraints evolve quickly.

Preferred Qualifications

Hands-on experience with Rydberg atoms, electromagnetically induced transparency, Autler–Townes spectroscopy, atomic RF electrometry, or closely related vapor-cell sensing is strongly preferred.
Experience with rubidium or cesium vapor cells, multi-laser spectroscopy, acousto-optic or electro-optic modulators, optical-frequency locking, optical-power stabilization, or low-noise photodetection.
Experience characterizing RF resonators, calibrated RF-field delivery, antennas, electrodes, TEM or GTEM cells, or microwave measurement systems.
Experience integrating precision laboratory instruments into stable, repeatable, transportable, or field-capable systems.
Familiarity with requirements-based verification, configuration-controlled hardware, and test evidence for aerospace, defense, scientific-instrumentation, or U.S. government programs; a current or previously held U.S. government security clearance is preferred but not required.
Experience using Ansys HFSS, COMSOL, Zemax, Rydiqule, or related modeling tools to design or interpret experiments.

Working Conditions and Physical Requirements

Work is performed primarily on site in laboratory, office, and integration/test environments and involves work around laser systems, RF and microwave equipment, electronic test equipment, heated vapor-cell hardware, optical tables, tools, and precision instrumentation. Required personal protective equipment will be provided and must be used in accordance with company requirements. With or without reasonable accommodation, the role requires the ability to work at laboratory benches for extended periods, perform fine optical and electronic alignment and adjustment tasks, and occasionally lift and carry laboratory equipment or components weighing up to forty pounds. Up to 10% of travel may be required.

Benefits

Salary Range: per year 145000-170000
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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Refine Your Search

physicist jobs in broomfield co

Applied Physicist - Quantum RF Sensing (QRF)

Senior Atomic Clock Research Physicist

Atomic Clock Research Physicist

Optical Physicist

Ionospheric Scientist and Modeling Lead

Staff Quantum Physicist

Ion Transport Physicist - 893

Lead Experimental Physicist

Computational Physicist - Fluid Dynamics

Quantum Physicist (Quantum Computing)

Staff Quantum Sensor Physicist

Professional Research Assistant

Lead Experimental Physicist - 570

Lead Quantum Hardware Physicist - 790

Atomic Source Physicist - 869

Earth Atmosphere Temporary Researcher

Laser Physicist

Senior Pulsed Power Physicist

Plasma Computational Scientist

Part-Time Radioactive Materials Licensing Physicist (PT)

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