Research & Development Physicist

Xcimer Energy leverages decades of research on Inertial Fusion Energy (IFE) combined with groundbreaking new laser architecture. Our mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. Xcimer has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by leading investors, Xcimer is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. As an Experimental Physicist in the fields of optical imaging and spectroscopy, you will be collaborating with a team of engineers and scientists on identifying physics problems and risks associated with building high energy pulsed laser systems, proposing experiments, and designing, building, and operating advanced imaging and spectroscopic experiments in the fields of pulsed plasma imaging, high speed imaging, spectroscopy of atoms and molecules, and other similar fields. You will train technicians and junior science team members to conduct experiments in the long run. You will independently own and lead projects, coordinate with the architecture, science, and engineering teams periodically and adjust priorities and the course of these projects. You will also process and interpret experimental data and collaborate with the theoretical team to support the development of models of various processes.

Demonstrated experience working with a wide range of diagnostic equipment is required. Experience building and working with vacuum systems in an experimental environment is expected. Experience with standard spectral and image analysis techniques for quantitative data interpretation. Experience using pulsed laser systems for excitation of gases or illumination of objects for fast imaging is highly desirable.

It is expected that you will be able to accept responsibility for multiple small‑scale projects immediately, learn quickly, and lead these projects effectively. Collaborate with vendors to refine specifications and procure optical, vacuum, and diagnostic equipment.

Plan, execute, and oversee spectroscopic experiments, ensuring accurate data collection and thorough analysis.

Calibrate devices and ensure experimental data are acquired accurately and free of artifacts.

Work with the theoretical team on simulations and development of physics models.

S. degree with 3-4 years of relevant laboratory experience; Demonstrated experience working with a wide range of experimental diagnostic equipment.

Experience with techniques for quantitative imaging of turbulent flows, such as digital holography, is highly desirable.

Experience planning, managing, and executing experiments.

Strong data analysis skills.

Highly self‑motivated, with the ability to work independently with minimal supervision.

S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee of granted asylum.

PhD in electrical engineering, chemistry, physics, or related fields.

Expertise in gas kinetics and data processing.

Familiarity with fiber optics.

Experience working in multidisciplinary research facilities, such as national laboratories.

Experience authoring scientific publications.

Experience in Matlab, Python, and LabVIEW.

$Xcimer Energy hires and promotes people on the basis of their qualifications, performance, and abilities. We support the establishment and maintenance of a workplace that fosters trust, equality, and teamwork, in which all employees recognize and appreciate the diversity of individual team members. We provide all qualified applicants for employment and employees with equal opportunities for hire, promotion, and other terms and conditions of employment, regardless of their race, color, religion, gender, sexual orientation, gender identity, national origin/ethnicity, age, physical or mental disability, genetic factors, military/veteran status, or any other status or characteristic protected by federal, state, and/or local law. Xcimer Energy will consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state, and local laws. Benefits include medical, dental, and vision coverage; basic and supplemental life insurance; short- and long-term disability; Eligible employees also receive equity, allowing them to share in the company’s long‑term success. Xcimer operates under a flexible Paid Time Off (ATO) approach. In addition, employees receive paid sick time, 13 company-paid holidays, and an annual paid company shutdown. Benefits are available to regular employees, including part-time and fixed‑term roles, as well as interns, with eligibility varying by benefit.

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