Hadron Energy, Inc.
This range is provided by Hadron Energy, Inc.. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base pay range $150,000.00/yr - $250,000.00/yr
Additional compensation types Annual Bonus and Stock options
Company Description Hadron Energy specializes in Micro Modular Reactor (MMR) development, design, and research based in the San Francisco Bay Area. As the leading MMR developer, Hadron Energy is building factory-produced, transportable microreactors that provide 24/7 carbon-free power for data centers, government facilities, industrial sites, and remote communities. Our mission is to create a brighter, healthier, and more equitable energy future.
Process Engineer – Role Description This is a full-time on-site role for a Process Engineer, based in the San Francisco Bay Area. The position is ideal for candidates with strong analytical, systems, and thermal-fluid backgrounds who are passionate about designing, optimizing, and scaling advanced energy systems.
The Process Engineer will play a key role in developing and refining the process systems that support Hadron Energy’s micro modular reactor (MMR) technology. This includes modeling thermal, hydraulic, and chemical processes across the plant; designing heat transfer and fluid systems; and ensuring efficient integration between the reactor, balance-of-plant, and auxiliary systems.
You will work closely with multidisciplinary teams—including mechanical, nuclear, and controls engineers—to translate conceptual designs into optimized, manufacturable process systems. This role offers the opportunity to directly influence the efficiency, reliability, and scalability of Hadron’s reactor platform in a fast-paced, innovation-driven environment.
Responsibilities
Develop process flow diagrams (PFDs) and piping and instrumentation diagrams (P&IDs) for key reactor and plant subsystems
Model and analyze thermal-fluid systems, including coolant loops, heat exchangers, condensers, and auxiliary processes
Conduct mass and energy balance calculations to optimize system efficiency and safety margins
Design and evaluate system configurations for heat transport, power conversion, and water/steam handling
Collaborate with the Balance of Plant and Mechanical Engineering teams to ensure cohesive system integration
Support component specification and procurement for pumps, valves, instrumentation, and heat exchangers
Perform process hazard analyses (PHAs) and participate in design and safety reviews
Develop and validate steady-state and transient process simulations using tools such as
Aspen HYSYS, COMSOL, ANSYS Fluent, or Modelica
Support prototype testing, commissioning, and data collection activities for process validation
Prepare documentation, calculations, and reports to support internal reviews and regulatory submissions
Qualifications & Skillsets
Bachelor’s or Master’s degree in
Chemical Engineering, Mechanical Engineering, Nuclear Engineering, or a related field
5+ years of experience in
process engineering, thermal systems design, or power generation
Strong proficiency in
process modeling and simulation software
(e.g., Aspen HYSYS, RELAP5, COMSOL, or equivalent)
Experience designing or analyzing
thermal-fluid systems
such as coolant loops, heat exchangers, or pressure vessels
Knowledge of
heat transfer, thermodynamics, and fluid mechanics
principles applied to high-efficiency energy systems
Familiarity with
ASME codes, P&ID development, and process safety standards
Understanding of
nuclear or advanced energy system processes
is a plus
Excellent analytical, organizational, and technical communication skills
Ability to work cross-functionally and manage multiple priorities in a dynamic startup environment
Passion for innovation, clean energy, and enabling the next generation of advanced nuclear technologies
Seniority level Mid-Senior level
Employment type Full-time
Job function Engineering, Research, and Design
Industries Nuclear Electric Power Generation and Energy Technology
Referrals increase your chances of interviewing at Hadron Energy, Inc. by 2x
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San Francisco Bay Area .
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Base pay range $150,000.00/yr - $250,000.00/yr
Additional compensation types Annual Bonus and Stock options
Company Description Hadron Energy specializes in Micro Modular Reactor (MMR) development, design, and research based in the San Francisco Bay Area. As the leading MMR developer, Hadron Energy is building factory-produced, transportable microreactors that provide 24/7 carbon-free power for data centers, government facilities, industrial sites, and remote communities. Our mission is to create a brighter, healthier, and more equitable energy future.
Process Engineer – Role Description This is a full-time on-site role for a Process Engineer, based in the San Francisco Bay Area. The position is ideal for candidates with strong analytical, systems, and thermal-fluid backgrounds who are passionate about designing, optimizing, and scaling advanced energy systems.
The Process Engineer will play a key role in developing and refining the process systems that support Hadron Energy’s micro modular reactor (MMR) technology. This includes modeling thermal, hydraulic, and chemical processes across the plant; designing heat transfer and fluid systems; and ensuring efficient integration between the reactor, balance-of-plant, and auxiliary systems.
You will work closely with multidisciplinary teams—including mechanical, nuclear, and controls engineers—to translate conceptual designs into optimized, manufacturable process systems. This role offers the opportunity to directly influence the efficiency, reliability, and scalability of Hadron’s reactor platform in a fast-paced, innovation-driven environment.
Responsibilities
Develop process flow diagrams (PFDs) and piping and instrumentation diagrams (P&IDs) for key reactor and plant subsystems
Model and analyze thermal-fluid systems, including coolant loops, heat exchangers, condensers, and auxiliary processes
Conduct mass and energy balance calculations to optimize system efficiency and safety margins
Design and evaluate system configurations for heat transport, power conversion, and water/steam handling
Collaborate with the Balance of Plant and Mechanical Engineering teams to ensure cohesive system integration
Support component specification and procurement for pumps, valves, instrumentation, and heat exchangers
Perform process hazard analyses (PHAs) and participate in design and safety reviews
Develop and validate steady-state and transient process simulations using tools such as
Aspen HYSYS, COMSOL, ANSYS Fluent, or Modelica
Support prototype testing, commissioning, and data collection activities for process validation
Prepare documentation, calculations, and reports to support internal reviews and regulatory submissions
Qualifications & Skillsets
Bachelor’s or Master’s degree in
Chemical Engineering, Mechanical Engineering, Nuclear Engineering, or a related field
5+ years of experience in
process engineering, thermal systems design, or power generation
Strong proficiency in
process modeling and simulation software
(e.g., Aspen HYSYS, RELAP5, COMSOL, or equivalent)
Experience designing or analyzing
thermal-fluid systems
such as coolant loops, heat exchangers, or pressure vessels
Knowledge of
heat transfer, thermodynamics, and fluid mechanics
principles applied to high-efficiency energy systems
Familiarity with
ASME codes, P&ID development, and process safety standards
Understanding of
nuclear or advanced energy system processes
is a plus
Excellent analytical, organizational, and technical communication skills
Ability to work cross-functionally and manage multiple priorities in a dynamic startup environment
Passion for innovation, clean energy, and enabling the next generation of advanced nuclear technologies
Seniority level Mid-Senior level
Employment type Full-time
Job function Engineering, Research, and Design
Industries Nuclear Electric Power Generation and Energy Technology
Referrals increase your chances of interviewing at Hadron Energy, Inc. by 2x
Get notified about new Process Engineer jobs in
San Francisco Bay Area .
#J-18808-Ljbffr