Senior R&D Test Engineer - Fluid Systems
Commonwealth Fusion SystemsDevens, MA
Full Time
Posted September 8, 2026
$90k - $145k
~30 people viewed this recently
Apply Now
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
- 7+ 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
Ready to Apply?
Join Commonwealth Fusion Systems and make an impact in renewable energy
Stay Updated on Sustainability Jobs
Get the latest renewable energy jobs and career tips delivered to your inbox.
Job Alerts
Get notified about new sustainability jobs
More jobs at Commonwealth Fusion Systems
Is this your company?Claim your listing — free →