Process Engineer jobs in United States
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Hadron Energy, Inc. · 1 day ago

Process Engineer

positionSan Francisco Bay Area
timeFull-time
remoteOnsite
senioritySenior Level
money$100K/yr - $250K/yr
date5+ years exp

Hadron Energy, Inc. specializes in Micro Modular Reactor (MMR) development and is seeking a Process Engineer to enhance their innovative energy solutions. The role focuses on developing and refining process systems for microreactor technology, requiring collaboration with multidisciplinary teams to optimize designs and ensure efficient integration of various systems.

EnergyManufacturingMechanical DesignMechanical EngineeringNuclear
Hiring Manager
Sam Gibson
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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

Qualification

Process engineeringThermal systems designProcess modeling softwareHeat transfer principlesFluid mechanics principlesP&ID developmentAnalytical skillsPassion for clean energyTechnical communicationOrganizational skillsCross-functional collaboration

Required

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
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

Preferred

Understanding of nuclear or advanced energy system processes is a plus

Company

Hadron Energy, Inc.

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Hadron Energy specializes in Micro Modular Reactor (MMR) development, design, and research.
dateFounded in 2024
location
San Francisco, California, USA
people-size11-50 employees
web-link
https://www.hadronenergy.com/

Funding

Current Stage
Early Stage
Total Funding
$0.9M
2025-09-29Acquired
2024-07-22Pre Seed· $0.9M

Leadership Team

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Samuel Gibson
Founder & CEO
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Olivia Hand
Head of Reactor Design
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Recent News

Business Wire
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2026-01-09
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Company data provided by crunchbase