Maritime Fusion · 2 months ago
Member of Technical Staff - R&D Engineering
San Francisco, CA
Full-time
Onsite
Mid Level
$120K/yr - $200K/yrMaritime Fusion is building fusion reactors for ships and off grid energy markets. They are seeking an R&D Engineer to design, prototype, and test high power circuits and mechanical assemblies while collaborating with a multidisciplinary team to solve complex engineering problems.
EnergyFuelNuclear
Responsibilities
Building and testing HTS (high-temperature superconducting) hardware: including REBCO conductors/cables, high-current power supplies, energy storage systems, cryogenic cooling systems, and integrated test fixtures
Standing up our R&D lab: benches, instrumentation, vacuum hardware, DAQs, software licenses, and everything in between
Owning your designs end-to-end: generating CAD and drawings, running FEA, sourcing components, working with vendors, and leading mechanical/electrical assembly
Hands-on prototyping: CNC machining and fabrication, soldering, wiring, assembling cryostats, working with LN₂, using DMMs/oscilloscopes, characterizing sensors and circuits
Developing and debugging electronics: from sensing circuits and high-current drivers to embedded control and data acquisition
Defining requirements and translating tokamak-level system attributes: into subsystem performance metrics
Solving genuinely hard problems: across physics, engineering, and manufacturing under real-world constraints
Collaborating closely with a small, multidisciplinary team of physicists, engineers, and technicians: sharing results quickly, making design tradeoffs explicit, and helping shape our technical roadmap
Qualification
Required
A well-rounded electromechanical engineering skillset spanning CAD/FEA (SolidWorks, CATIA, Ansys, COMSOL), PCB design (Altium, KiCad), power electronics, embedded systems, and mechanical design/fabrication
Hands-on hardware experience across mechanical builds, electronics bring-up, test setups, and system integration
Comfort with lab tools and instrumentation: CNC machines, machine shop tools, soldering equipment, oscilloscopes, DMMs, high-current supplies, vacuum pumps, and cryogenic hardware
Familiarity with power electronics and measurement/sensing circuits
Software proficiency: data acquisition, PLCs, Python scripting, test automation, and control systems
Willingness to do the dirty work involved with early stage startups: assembling the office furniture, setting up software licenses, and forming strong external industry relationships
Preferred
Bonus experience: working with REBCO tape, high vacuum, high voltage, high current, cryogenic systems, or industrial test infrastructure
Benefits
0.5-1% equity
Company
Maritime Fusion
Maritime Fusion specializes in the development and construction of high-temperature superconducting fusion reactors.
Founded in 2024
2-10 employees
Funding
Current Stage
Early StageTotal Funding
$5MKey Investors
Trucks Venture CapitalY Combinator
2025-11-24Seed· $4.5M
2025-03-12Pre Seed· $0.5M
2025-01-29Pre Seed
Recent News
2025-12-03
ClimateHack Weekly
2025-11-28
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