Senior Scientist - Plasma Diagnostics

Fusion Energy Base; Lake Forest (CA); On-site; USD 140,000 - 160,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401(K) with company match

Paid vacation and sick time

Company holiday in December

Wellness program

Parental leave

Equity participation potential

Job summary

TAE Technologies is seeking a Sr. Scientist (Experimental Plasma Physicist) to develop in-situ boundary plasma diagnostics for the C-2W device. You will design and deploy Langmuir probes, retarding field analyzers, and other diagnostics, run experiments, analyze data, and translate it into physics insights.

Lead the full experimental loop and guide future device design. PhD-level experience in plasma physics is required, with hands-on diagnostic deployment on plasma devices.

Qualifications

• PhD-level research in experimental plasma physics with a strong focus on in situ diagnostics.
• Hands-on experience building and deploying diagnostics on plasma devices.
• Experience with Langmuir probes, retarding field analyzers, pyrobolometers, or fast-ion loss detectors.

Responsibilities

• Develop, deploy, refine, and troubleshoot in situ boundary plasma diagnostic systems.
• Plan and execute experiments on the C-2W fusion device and analyze results.
• Prepare technical reports and presentations for internal reviews and conferences.
• Maintain lab safety and core facility infrastructure.

Skills

Langmuir probes

Python programming

Data analysis

Plasma diagnostics

Experiment planning

Education

PhD in Plasma Physics

Tools

DAQ systems

Oscilloscopes

Power supplies

Vacuum systems

Job description

Do Epic Science TAE is the world’s first private fusion energy company, founded in 1998 to commercialize the cleanest, safest, most affordable, and sustainable form of carbon-free power. We are applying science and engineering to design transformational technologies. Whether it's harnessing fusion through the science of stars, making exponential leaps in power efficiency, or innovating medical care with a novel cancer treatment: We're turning the promise of science into reality. We’re looking for candidates who are passionate about realizing our mission: A future where all people have affordable access to reliable, abundant, and environmentally friendly fusion-generated electricity.

We are seeking a Sr. Scientist (Experimental Plasma Physicist) who will develop in-situ boundary plasma diagnostics for the C-2W fusion device. In this role, you will design, deploy, and troubleshoot direct-contact material diagnostics — such as Langmuir probes, retarding field analyzers, fast ion loss detectors, pyrobolometers, and thermo-optical arrays — to measure local edge density, temperature, heat flux, and more. You will also run experiments, perform data analysis, and translate raw diagnostic signals into physics-based insights. This is a full-lifecycle scientific role. We are not just looking for a hardware builder, but a scientist who will own the entire experimental loop. You will lead the physical development of edge diagnostics, deploy them on the C-2W device, run the experimental campaigns, and critically analyze the resulting data to gain insight into the underlying physics and help guide design choices for our next-generation devices.

About The Role

Develop, deploy, refine, and troubleshoot in situ boundary plasma diagnostic systems to characterize key plasma parameters such as local edge density, temperature, heat flux, plasma potential, fast ion distribution, and more. Collaborate with engineering teams to design, maintain, and refine direct-contact material diagnostics — such as Langmuir probes, retarding field analyzers, fast ion loss detectors, pyrobolometers, and thermo-optical arrays. Plan and execute experiments on the C-2W fusion device. Analyze complex experimental data with advanced modeling and simulation tools, interpreting results within the broader fusion research program. Prepare technical reports, documentation, and presentations for internal meetings, project reviews, and scientific conferences. Maintain laboratory infrastructure while strictly following all safety protocols. Promote the TAE Core Values, Rules of the Road, and our Culture of Safety.

About You

PhD-level research experience in experimental plasma physics, with a strong focus on in situ plasma diagnostics. Multiple years of Hands-on experience building, deploying, troubleshooting, and maintaining diagnostics on plasma research devices. Direct experience with one or more of the following diagnostics highly preferred: Langmuir probes, retarding field analyzers, pyrobolometers, fast-ion loss detectors. Demonstrated success in planning and conducting experiments, analyzing results, extracting physics-based insights, and delivering technical reports or peer-reviewed publications. Experience with scientific programming, data analysis, and data visualization using Python (preferred) or similar tools. Experience working with standard plasma diagnostic instrumentation and plasma research device infrastructure, including but not limited to: DAQ systems, motorized actuators, power supplies, oscilloscopes, function generators, multi-meters, high-vacuum systems. Strong analytical and problem-solving skills with the ability to interpret complex datasets. Excellent written and verbal communication skills for multidisciplinary collaboration. Ability to work effectively both independently and in team environments to meet project objectives and deadlines.

Education

Required: Ph.D. in Plasma Physics, Engineering, or a closely related field. At TAE Technologies, we consider a wide range of factors when making compensation decisions including but not limited to skill sets; experience and job-related knowledge, training; licenses and certifications, and other business and organizational needs. The total compensation package for this position may also include other elements depending on the position offered . $140,000 - $160,000

About Us

Imagination, skill, and will We are a diverse team of over 500 engineers, scientists, professionals, Maxwell Prize winners, and big thinkers from more than 40 countries with a track record of delivering on the innovative ways science can lead humanity into a brighter era. We are not afraid to envision a future where fusion and science can transform our world.

What you’ll get with us

Generous benefits such as

• Medical
• Dental
• Vision
• 401 (K) with company match
• paid vacation + sick time
• companywide December holiday
• wellness program
• parental leave
• Payment rewards: For referring talent, novel research, and patents
• A collaborative environment: An organization where talents and interests can plug in to different groups throughout the organization
• Potential for equity participation
• HQ in Southern California
• Employee events on and off-site
• A commitment to upholding and growing an inclusive organization

Learn more

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TAE Technologies is an Equal Opportunity Employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status. We ensure all individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, perform essential job functions, and receive other benefits and privileges of employment. Please contact us [e-mail] to request accommodations or request more information. Note to Agencies: TAE prefers to hire directly and maintains an existing preferred supplier list. We do not accept speculative CVs or referrals from agencies. If speculative CVs are sent, no fee will be applicable.