Radiofrequency Postdoctoral Researcher

Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission.

$117,900 - $135,060 Annually

This is the lowest to highest salary in good faith we would pay for this role at the time of this posting. Pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs.

We have an opening for a Postdoctoral Researcher specializing in the area of epitaxial growth and semiconductor devices. You will be an integral part of a multi-disciplinary team supporting work in the areas of pulsed power, high power microwaves, and power electronics. This position is in the Materials Engineering Division (MED), within the Engineering Directorate.

This position requires full-time on-site presence due to the nature of the work.

• Conduct research in and development of radio frequency and pulsed power systems.
• Design, build, and test radio frequency devices and components such as transistors, amplifiers, circulators, antennas, non-linear transmission lines, and oscillators.
• Work closely with an interdisciplinary team consisting of engineers, technicians, and integration experts from LLNL in all aspects of device and system development, to complete project goals.
• Publish research results in peer-reviewed scientific or technical journals and present results at external conferences seminars and/or technical meetings.
• Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally.
• Perform all assignments safely in accordance with ES&H, security, and business practice requirements and policies.
• Perform other duties as assigned.

• Ability to obtain and maintain a U.S. DOE Q-level security clearance which requires U.S. Citizenship.
• PhD in Electrical Engineering, Physics, or related fields.
• Significant experience with design of radio frequency devices including software such as CST, HFSS, Comsol, ADS, or Ansys.
• Experience with one or more of the following areas: device characterization, antenna measurements, radio frequency characterization, microfabrication.
• Ability to write and operate software (e.g. MATLAB, PYTHON, LABVIEW) for data collection and analysis.
• Ability to perform as an innovative experimentalist with a broad range of experience in experimental design, measurement, and data acquisition techniques, including developing innovative solutions to scientific and technical problems.
• Ability to develop independent research projects through publication of peer-reviewed literature.
• Initiative and interpersonal skills and ability to succeed in a collaborative, multidisciplinary team environment.
• Proficient verbal and written communication skills to collaborate effectively in a team environment and present and explain technical information.

#LI-Onsite

This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.

• Included in 2025 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules
  * depending on project needs
• Our values - visithttps://(Use the "Apply for this Job" box below).-values

This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, wewill initiate a Federal background investigation to determine if youmeet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship.

External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the useand/or possession ofmobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area whereyou are not permitted to have a personal and/or laboratory mobile devicein your possession.…