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  3. R&D Test Engineer - Fluid Systems
CF

R&D Test Engineer - Fluid Systems

Commonwealth Fusion Systems
Devens, MA
Full Time
Posted July 2, 2026
$90k - $145k
Power Generation
~22 people viewed this recently
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Application opens on company website

Job Description

About Commonwealth Fusion Systems:

Key Responsibilities

  • Design fluid systems for test stands that meet test objectives/requirements, soliciting feedback from interfacing teams as necessary
  • Challenge requirements as necessary to achieve simplicity in design and develop efficient de-risking strategies and plans
  • Perform hand calculations and system level analyses demonstrating sufficient margin for fluid system requirements; build and run Ansys structural and thermal simulations on components and assemblies
  • Procure off-the-shelf process fluid components, manage relationships with vendors, draft specifications for speciality parts and design custom fluid system components as needed
  • Manage the build and commissioning of fluid systems, coordinating engineers and technicians to safely bring systems to operational status
  • Design system instrumentation and automation for safe operations

Requirements

  • Bachelor’s degree in mechanical, chemical, process engineering, or a closely related field
  • 5+ years of experience in the engineering of integrated fluid/mechanical systems (experience with both small-scale rapid R&D and large-scale systems is highly desired)
  • Full-lifecycle fluid systems: Hands-on experience executing the entire lifecycle of large-scale thermofluid systems Component expertise: Experience developing specifications, sizing and working with tanks, process piping, pumps, valves, compressors, purification stages, circulators, heat exchangers, etc. Design documentation: Strong background in establishing system requirements, generating process flow diagrams (PFDs), and developing piping and instrumentation diagrams (P&IDs) Instrumentation: Experience in the design, integration, and troubleshooting of system instrumentation Software and analysis tools: Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB Extreme environments: Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Hands-on experience executing the entire lifecycle of large-scale thermofluid systems
  • Component expertise: Experience developing specifications, sizing and working with tanks, process piping, pumps, valves, compressors, purification stages, circulators, heat exchangers, etc. Design documentation: Strong background in establishing system requirements, generating process flow diagrams (PFDs), and developing piping and instrumentation diagrams (P&IDs) Instrumentation: Experience in the design, integration, and troubleshooting of system instrumentation Software and analysis tools: Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB Extreme environments: Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Experience developing specifications, sizing and working with tanks, process piping, pumps, valves, compressors, purification stages, circulators, heat exchangers, etc.
  • Design documentation: Strong background in establishing system requirements, generating process flow diagrams (PFDs), and developing piping and instrumentation diagrams (P&IDs) Instrumentation: Experience in the design, integration, and troubleshooting of system instrumentation Software and analysis tools: Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB Extreme environments: Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Strong background in establishing system requirements, generating process flow diagrams (PFDs), and developing piping and instrumentation diagrams (P&IDs)
  • Instrumentation: Experience in the design, integration, and troubleshooting of system instrumentation Software and analysis tools: Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB Extreme environments: Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Experience in the design, integration, and troubleshooting of system instrumentation
  • Software and analysis tools: Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB Extreme environments: Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB
  • Extreme environments: Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications
  • Vendor relations: Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers
  • Cross-functional communication: Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement Problem solving: Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement
  • Problem solving:
  • Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines
  • Ability to occasionally lift up to 50 lbs
  • Perform activities such as stooping, climbing, typing, standing, or sitting for extended periods of time
  • Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics
  • Willingness to travel or work required nights/weekends/on-call occasionally

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