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Plasma Physicist

San Francisco,...
M

Maritime Fusion

Startup
Category
Technical
Experience
0-3 years
Type
Full-Time
Location
San Francisco, CA, US
Salary
$120,000 - $200,000
Job Description
Benefits & Culture
Will sponsor visa
Equity options
Core Values
Extreme ownership
High performance
Controlled Chaos
Worthwhile Projects
This goes straight to the founder
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No recruiters. Founders reply directly.

Founder Signals
Response Rate
85%
Avg Response Time
2 hours
Compensation Calculator
In startups, higher salary usually means lower equity.
Salary (affects equity %)
Link salary ↔ equity
$125,000
$120,000$200,000
Equity % (auto from trade-off model)
1.15%
0%5%
Projected Exit Value
$350,000,000
$10M$500M
Live Trade-off
Salary
Equity %
Est. Equity Value at Exit
$100,000
1.19%
$2,082,500
$125,000
1.15%
$2,008,125
$150,000
0.93%
$1,636,250
$175,000
0.72%
$1,264,375

Advanced Salary & Equity Calculator

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Role Overview

Every startup claims a “fast pace and dynamic environment” but at Maritime Fusion we truly operate in controlled chaos mode. The gravitas of the mission calls for a unique company structure, rewarding high performance and dynamically allocating resources. We’re a small company (for now) with plans to grow a world class fusion workforce. This is an opportunity to join at the very early stage, the stage where all employees wear all hats. We can’t guarantee success, but we can guarantee excitement, worthwhile projects, extreme ownership, and good vibes. Iron man 1 movie sound track plays on loop in the lab.

We’re looking for a Plasma Physicist who’s not just into theory—but wants to design, simulate, and help build marine deployable tokamaks. You’ll spend your time running transport and MHD codes, exploring divertor concepts and operational scenarios, and conducting system level tradeoff studies.

Responsibilities

  1. Running simulations across the full plasma + machine stack: plasma equilibrium and magnetic system optimization, stability & confinement, transport, edge physics, burning plasma physics, diagnostic system design, disruption mitigation.
  2. Using tools like POPCON, TokaMaker, ASTRA, TGLF, Fuse, CGYRO, BALOO, UEDGE, Bluemira, COMSOL, ANSYS, FEA, and OpenMC to analyze and optimize the full system.
  3. Developing models and workflows to connect simulations with real-world design constraints.
  4. Form relationships and foster collaboration with academic & government labs to further optimize and explore the tokamak design space.
  5. Solving hard problems.

Requirements

  1. Ph.D/M.S. in Plasma Physics, Nuclear Engineering, Applied Physics, or similar (or equivalent experience).
  2. Experience modeling tokamaks or similar fusion devices— from grad school, postdoc, or industry.
  3. Strong coding and engineering fundamentals.
  4. Willingness to do the dirty work involved with early stage startups; assemble the office furniture, setup software licenses, form strong external industry relationships.