Senior Fusion Process Integration Engineer

Hitachi Ventures; Kearny (NJ); On-site; USD 150,000 - 180,000; Full time

Benefits offered by this job

Salary range $150,000-$180,000

Comprehensive health benefits (medical

Employee equity stock options

20 days PTO

Job summary

Thea Energy seeks a Senior Integration Engineer - Nuclear Process to define and integrate the process architecture of a first-of-a-kind fusion energy system. This role sits at the intersection of nuclear engineering, process engineering, and systems integration.

You will develop process flows and system architecture connecting major plant systems, define system boundaries and interfaces, and work with engineering teams to translate the plant concept into an integrated, buildable system.

Qualifications

• Bachelor's or advanced degree in Nuclear Engineering, Chemical Engineering, Mechanical Engineering, or related discipline.
• 8+ years of relevant experience in nuclear, fusion, chemical/process, or other highly regulated process systems.
• Demonstrated experience developing PFDs, P&IDs, process architectures, and mass/energy balances.
• Experience defining system interfaces and working across multiple engineering disciplines.
• Experience with tritium processing, nuclear fuel-cycle systems, isotope processing, or fusion fuel-cycle systems preferred.
• Experience with vacuum, gas handling, cryogenic, or high-purity process systems is a plus.
• Familiarity with nuclear safety, configuration management, and formal engineering processes.
• Ability to work effectively in a dynamic, first-of-a-kind development environment.

Responsibilities

• Develop and maintain process flow diagrams (PFDs) and process architectures for nuclear and supporting plant systems.
• Develop system-level mass and energy balances and define major process streams and operating conditions.
• Establish system boundaries and identify, document, and manage interfaces between systems.
• Translate plant-level functions into system and subsystem requirements.
• Define process requirements for normal, startup, shutdown, maintenance, and abnormal operating modes.
• Integrate process systems including fuel-cycle/tritium processing, vacuum, cooling, heat transport, utilities, and other supporting systems.
• Work with mechanical, electrical, controls, nuclear, safety, and other engineering disciplines to resolve cross-functional technical issues.
• Support development of P&IDs, equipment specifications, process requirements, and interface control documentation.
• Identify process integration risks, dependencies, and opportunities for simplification.
• Participate in design reviews, FMEA/HAZOP activities, safety analyses, and technical risk assessments.
• Support control philosophies and operating strategies with controls and software engineers.
• Support system integration, commissioning, and operational readiness activities.
• Maintain configuration and technical consistency of process architecture as the design evolves.

Skills

Nuclear process engineering

PFDs & P&IDs

Mass & energy balances

System interfaces

Cross-disciplinary collaboration

First-of-a-kind development

Education

Bachelor's or advanced degree in Nuclear/Chemical/Mechanical Engineering

Job description

Thea Energy seeks a Senior Integration Engineer - Nuclear Process to define and integrate the process architecture of a first-of-a-kind fusion energy system. This role sits at the intersection of nuclear engineering, process engineering, and systems integration.

You will develop process flows and system architecture connecting major plant systems, define system boundaries and interfaces, and work with engineering teams to translate the plant concept into an integrated, buildable system.