Subcritical Systems Inc
We are seeking a Mechanical Engineer to lead the design and procurement of the Passive Decay Heat Removal System for the subcritical core of an Energy Amplifier.
About Subcritical Systems Inc. Subcritical Systems Inc. is a funded startup based in Austin, Texas dedicated to bringing the energy amplifier concept to the United States for safe generation of electrical power. Using a particle accelerator to sustain fission of nuclear fuel in a subcritical core, our innovative approach aims to transform energy production. The founding team is comprised of entrepreneurs with a history of building cutting‑edge technology companies and scientists from US national labs with deep experience in energy amplifier technologies. Subcritical Systems is venture‑backed and actively hiring to expand its dynamic team, work towards licensing, regulatory submissions and construction of its first energy amplifier.
About the Role We are seeking a creative and dynamic Mechanical Engineer to join our growing team in a full‑time, on‑site role located in Austin, TX. In this role you will lead the design, prototyping, and procurement of the key components of the subcritical core’s Passive Decay Heat Removal System. This is an ideal role for an ambitious, creative and hard‑working engineer who wants to use their expertise to transform the energy system and in so doing change the world.
We cannot accept candidates who require visas/sponsorship at this time.
Responsibilities
Serve as an integral member of the subcritical core team responsible for designing, prototyping, and ultimately constructing the subcritical core.
Evaluate concepts for passively removing decay heat from the subcritical core and recommend one for adoption in the baseline design.
Perform CFD simulations of one or more passive decay heat removal concepts as part of concept evaluation.
Work closely with the mechanical engineering teams responsible for designing the primary Pb loop, the subcritical core, and core vessel internals to ensure proper function of the PDHRS under all postulated design‑basis accident scenarios.
Work closely with the licensing team responsible to ensure the proper identification of safety‑credited components within the PDHRS.
Develop design and interface requirements for the PDHRS.
Develop hardware specifications for, and procure, PDHRS components.
Identify and conduct prototyping of PDHRS components as needed to ensure performance.
Work with the leadership team on developing & tracking key company technical milestones, ensuring delivery of results within aggressive timelines in a complex, fast‑paced environment.
Document work in written reports, presentations, and regulatory submissions.
About You
M.S. (preferred) or B.S. in Mechanical Engineering or similar field.
Experience using CFD code(s) to model heat transfer in nuclear systems cooled by liquid metal.
Experience using SAS4A, SIMMER, RELAP, or similar reactor accident simulation codes.
Record of technical accomplishment through publications and presentations.
Strong work ethic, resilient, able to work in a fast‑paced environment, driven, passionate about the field.
Pluses
Experience using STAR‑CCM+ to perform CFD simulations.
Experience performing thermal‑hydraulic simulations with heavy liquid metal coolant.
What We Offer
A high‑impact role where your work has real‑world application in addressing the nation’s energy challenges via the development of truly forward‑looking approaches and technology.
Competitive salary commensurate with experience and technical expertise.
Comprehensive healthcare insurance.
The chance to work alongside world‑class entrepreneurs and well‑known scientific leaders.
An opportunity to work in a fast‑paced startup environment.
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About Subcritical Systems Inc. Subcritical Systems Inc. is a funded startup based in Austin, Texas dedicated to bringing the energy amplifier concept to the United States for safe generation of electrical power. Using a particle accelerator to sustain fission of nuclear fuel in a subcritical core, our innovative approach aims to transform energy production. The founding team is comprised of entrepreneurs with a history of building cutting‑edge technology companies and scientists from US national labs with deep experience in energy amplifier technologies. Subcritical Systems is venture‑backed and actively hiring to expand its dynamic team, work towards licensing, regulatory submissions and construction of its first energy amplifier.
About the Role We are seeking a creative and dynamic Mechanical Engineer to join our growing team in a full‑time, on‑site role located in Austin, TX. In this role you will lead the design, prototyping, and procurement of the key components of the subcritical core’s Passive Decay Heat Removal System. This is an ideal role for an ambitious, creative and hard‑working engineer who wants to use their expertise to transform the energy system and in so doing change the world.
We cannot accept candidates who require visas/sponsorship at this time.
Responsibilities
Serve as an integral member of the subcritical core team responsible for designing, prototyping, and ultimately constructing the subcritical core.
Evaluate concepts for passively removing decay heat from the subcritical core and recommend one for adoption in the baseline design.
Perform CFD simulations of one or more passive decay heat removal concepts as part of concept evaluation.
Work closely with the mechanical engineering teams responsible for designing the primary Pb loop, the subcritical core, and core vessel internals to ensure proper function of the PDHRS under all postulated design‑basis accident scenarios.
Work closely with the licensing team responsible to ensure the proper identification of safety‑credited components within the PDHRS.
Develop design and interface requirements for the PDHRS.
Develop hardware specifications for, and procure, PDHRS components.
Identify and conduct prototyping of PDHRS components as needed to ensure performance.
Work with the leadership team on developing & tracking key company technical milestones, ensuring delivery of results within aggressive timelines in a complex, fast‑paced environment.
Document work in written reports, presentations, and regulatory submissions.
About You
M.S. (preferred) or B.S. in Mechanical Engineering or similar field.
Experience using CFD code(s) to model heat transfer in nuclear systems cooled by liquid metal.
Experience using SAS4A, SIMMER, RELAP, or similar reactor accident simulation codes.
Record of technical accomplishment through publications and presentations.
Strong work ethic, resilient, able to work in a fast‑paced environment, driven, passionate about the field.
Pluses
Experience using STAR‑CCM+ to perform CFD simulations.
Experience performing thermal‑hydraulic simulations with heavy liquid metal coolant.
What We Offer
A high‑impact role where your work has real‑world application in addressing the nation’s energy challenges via the development of truly forward‑looking approaches and technology.
Competitive salary commensurate with experience and technical expertise.
Comprehensive healthcare insurance.
The chance to work alongside world‑class entrepreneurs and well‑known scientific leaders.
An opportunity to work in a fast‑paced startup environment.
#J-18808-Ljbffr