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Theoretical Physicist Jobs (NOW HIRING)

Acceleron Fusion

Accelerator Physicist

Cambridge, MA

$110K - $150K/yr

Demonstrated understanding of accelerator physics principles for beamlines, synchrotrons, and storage rings, including the theory of polarized beams * Experience with particle accelerator simulation ...

UT Health East Texas

Physicist

Athens, TX · On-site

Address theoretical and practical problems of measurements of ionizing radiation under clinical ... Master's degree in medical physics * ABR board eligible * Texas licensure Preferred Job ...

Type One Energy

Computational Physicist

Madison, WI · On-site

Senior Director of Physics Analysis Your role in the mission: Type One Energy is seeking ... This is an opportunity to work at the intersection of theory, simulation, and engineering ...

Acceleron Fusion

Accelerator Physicist

Cambridge, MA · On-site

$110K - $150K/yr

Demonstrated understanding of accelerator physics principles for beamlines, synchrotrons, and storage rings, including the theory of polarized beams * Experience with particle accelerator simulation ...

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How much do theoretical physicist jobs pay per year?

As of Jun 14, 2026, the average yearly pay for theoretical physicist in the United States is $94,805.00, according to ZipRecruiter salary data. Most workers in this role earn between $59,000.00 and $112,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Theoretical Physicist position, and why are they important?

Excelling as a Theoretical Physicist requires advanced expertise in physics and mathematics, typically supported by a Ph.D. in physics or a closely related field. Familiarity with computational modeling tools (such as MATLAB or Mathematica), programming languages (like Python or C++), and scientific publication systems is common. Critical thinking, problem-solving, and the ability to communicate complex ideas clearly are valuable soft skills in this role. These abilities allow Theoretical Physicists to develop and test new theories, contribute to innovative research, and effectively share their findings with the scientific community.

What jobs do theoretical physicists have?

Theoretical physicists typically work in academia, research institutions, or government laboratories, focusing on developing models and theories to understand physical phenomena. They often analyze data, use advanced mathematical tools, and publish their findings, sometimes collaborating with experimental physicists. Job roles may include research scientist, university professor, or scientific consultant.

What does a typical workday look like for a Theoretical Physicist?

A typical day for a Theoretical Physicist often involves formulating and refining mathematical models, running computer simulations, and analyzing data to explore physical phenomena. They may spend time collaborating with experimental physicists, attending research meetings, or reviewing scientific literature to stay current in their field. Writing and revising research papers, preparing for conferences, and mentoring graduate students or team members are also common activities. The work environment is usually a blend of independent research and teamwork within academic institutions, research centers, or government laboratories.

Was Jeff Bezos a theoretical physicist?

Jeff Bezos is not a theoretical physicist; he is an entrepreneur and the founder of Amazon. Theoretical physicists typically hold advanced degrees in physics and work on abstract scientific concepts, which does not describe Bezos's career path.

What work do theoretical physicists do?

Theoretical physicists develop mathematical models and theories to understand fundamental physical phenomena, such as particles, forces, and the universe's structure. They often work with complex equations, computer simulations, and collaborate with experimental physicists to test their hypotheses, typically working in research institutions or academia.

What does a Theoretical Physicist do?

A Theoretical Physicist studies the fundamental laws of nature by developing mathematical models and theories to explain physical phenomena. They work on abstract concepts such as quantum mechanics, relativity, and cosmology, often without direct experimentation. Their work can lead to new scientific discoveries, influence experimental research, and contribute to advancements in technology. Many Theoretical Physicists work in academia, research institutions, or industries like aerospace and computing.

What is the holy grail of theoretical physics?

The holy grail of theoretical physics is a unified theory that combines quantum mechanics and general relativity into a single framework, often referred to as a theory of everything. Achieving this would explain all fundamental forces and particles in the universe. Theoretical physicists work on developing models, mathematical tools, and experiments to approach this goal.
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Theoretical Physicist jobs near you
Infographic showing various Theoretical Physicist job openings in the United States as of June 2026, with employment types broken down into 1% As Needed, 96% Full Time, 2% Part Time, and 1% Contract. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $94,805 per year, or $45.6 per hour.

Accelerator Physicist

Acceleron Fusion

Cambridge, MA

$110K - $150K/yr

Other

Medical, Dental, Retirement, PTO

Posted 2 days ago

Job description

About us

Acceleron Fusion is developing muoncatalyzed fusion-a path to clean, abundant energy. Building on research sponsored by the U.S. DOE, we have recently raised a $24M Series A venture capital round and have already logged 100+ hours of muon-catalyzed fusion in tests at the Paul Scherrer Institute. Our collaborators include PSI, Oak Ridge, Argonne, Fermilab, and several universities. Join a team where fundamental physics meets application-oriented engineering, and your designs could help move our technology from the laboratory to a commercial energy source.

We have an opening for an Accelerator Physicist who will play a key role in the design and optimization of muon production systems for our fusion technology.

What you'll do:

  • Design and optimize particle accelerator systems and beamlines for muon production
  • Develop simulation models of accelerators and beams to analyze beam dynamics and particle interactions
  • Collaborate cross-functionally to integrate accelerator designs into our fusion system
  • Contribute to experimental planning and data analysis
  • Help establish technical specifications for system components
  • Author technical papers and contribute to the company's scientific publications, presenting research at scientific conferences

What we're looking for:

  • PhD in Physics, Electrical Engineering, or a related field, preferably with a focus on accelerator physics
  • Strong understanding of beam dynamics and accelerator systems
  • Demonstrated understanding of accelerator physics principles for beamlines, synchrotrons, and storage rings, including the theory of polarized beams
  • Experience with particle accelerator simulation tools
  • Track record of working successfully with other scientists and engineers to solve complex technical challenges
  • Excellent analytical and problem-solving abilities
  • Strong communication and collaboration skills, and ability to work in a fast-paced team

Preferred Qualifications (not required)

  • Post-doctoral research experience in accelerator physics
  • Hands-on experience with physics/particle accelerator operations or development
  • Background in muon physics or muon beamline design
  • Familiarity with high-frequency electronics or RF accelerator components.
  • Experience with safety systems for high-power or high-voltage electronics.
  • Programming skills in Python, MATLAB, or similar tools
  • CAD software proficiency (e.g. SolidWorks, AutoCAD)

Details and Logistics:

  • This is a full-time, onsite role working from our facility in Cambridge, MA.
  • Travel (including international) for several weeks per year is required.
  • Our benefits package includes health & dental insurance, retirement savings with company contribution, stock options, paid time off, and 11 company holidays.
  • The salary range for this role is $110,000 to $150,000. This range represents the minimum and maximum base compensation Acceleron Fusion reasonably expects to pay for this position. The specific salary offered will be determined based on relevant factors including skills, experience, qualifications, and location. This position may also be eligible for additional compensation such as bonuses, equity, or other benefits.

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