Low Temperature Experimental Physicist

Mathematics/Applied Physics
REDD - Research & Exploratory Development Department

Do you love developing creative solutions to exciting problems related to low temperature experiments?


Do you want to work on a broad set of projects with a dynamic and diverse team of theoretical and experimental physicists and engineers?


If so, we're looking for someone like you to join our team at APL!


We are seeking a forward-thinking physicist to help us research, understand, and develop cryogenic environments. As a member of our team, you'll contribute to or initiate research and development efforts in a variety of low-temperature experiments, including cryogenically cooled sensors, helium & superfluid physics, and other quantum systems.


As a research scientist, you will join a hardworking team of scientists who are passionate about developing innovative projects that can impact future use of quantum technologies for our nation. Our team is committed to scientific rigor and continuous improvement. Our team values high-risk, high-reward ideas, honest discussion, and open collaboration.


As a Low Temperature Experimental Physicist:


  • Your primary responsibility will be to develop creative, independent research to complement existing efforts that use dry 1K systems and dry dilution refrigerator infrastructure.


  • You will support existing programs through day-to-day operations of various cryogenic systems and experiments, as well as contributing high-quality ideas and insights into existing problems, leading to novel solutions responsive to APL and sponsor needs.


  • You collaborate with fellow physicists, as well as a diverse group of electrical engineers and fabrication technicians to develop state-of-the-art device or system prototypes.


You meet our minimum qualifications for the job if you...

  • Possess a PhD in physics or a related discipline (e.g., electrical engineering, applied physics)


  • Demonstrate experience with cryogenic systems or in characterizing materials or systems at cryogenic temperatures.


  • Have a strong desire to work in an interdisciplinary, applied science environment.


  • Are able to obtain an Interim Secret security clearance by your start date and can ultimately obtain a TS/SCI+poly level clearance. If selected, you will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship.


  • Can demonstrate that you are fully vaccinated against COVID-19. To ensure the safety and well-being of the community, APL has established a policy requiring that all staff be vaccinated against COVID-19. All staff members must provide proof of full vaccination or have an approved medical or religious accommodation by their start date.


You'll go above and beyond our minimum requirements if you:


  • Have experience designing, fabricating, and testing cryogenic sensors.


  • Have significant experience operating millikelvin test systems.


  • Hold an active TS/SCI +poly security clearance.


Why work at APL?

The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges. While we are dedicated to solving complex challenges and pioneering new technologies, what makes us truly outstanding is our culture. We offer a vibrant, welcoming atmosphere where you can bring your authentic self to work, continue to grow, and build strong connections with inspiring teammates. At APL, we celebrate our differences and encourage creativity and bold, new ideas. Our employees enjoy generous benefits, including a robust education assistance program, unparalleled retirement contributions, and a healthy work/life balance. APL’s campus is located in the Baltimore-Washington metro area. Learn more about our career opportunities at




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