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We are seeking a skilled and motivated mechanical design engineer to join our molten salt fabrication team. This hands-on role involves designing and prototyping systems, components and structure associated with halide salt production, working directly with high-temperature molten salts, operating specialized equipment, building custom salt machinery and equipment and generally supporting industrial-scale production of molten salt products.
The ideal candidate will have extensive design and fabrication experience, capacity for mechanical analyses including but not limited to stress distribution, vibration, fatigue and other failure modes, pressure, and thermal shock. They must also be comfortable working in both laboratory and industrial environments with high-temperature systems and have experience building components and structures, recording data, communicating results through both oral and written communication, designing and implementing a variety of tests on structural components and systems, and managing buildouts of industrial processes. A PE license is highly preferred.
Key Responsibilities
Molten Salt Handling
Work in a multidisciplinary team to install and operate a high temperature molten salt fabrication processes.
Design and prototype systems, structures, and components of molten salt fabrication facilities.
Work with a team to complete complex tasks and accurately characterize results.
Assist in HAZOP reviews and ECM of the process equipment.
Set up, operate, and maintain high-temperature industrial equipment.
Operate, maintain, and repair inert atmosphere glove boxes.
Qualifications Required:
Bachelors or masters degree in mechanical engineering plus 10+ years of industry experience
CSWP or proven competency in CAD.
Strong attention to detail and organizational skills.
Strict adherence to laboratory and industrial safety and chemical safety protocols.
Experience designing, prototyping, and troubleshooting a variety of mechanical components
Ability to wear full-body personal protective equipment (PPE) properly for 90 minutes at a time.
Preferred:
Candidates with a PE license that can sign off on engineering designs.
Certifications for CAD or similar drawing/design software.
Experience with a variety of machining and fabrication methods/techniques.
Familiarity with laboratory and industrial software/data systems.
Core Technical Skills Finite Element Analysis (FEA)
Nonlinear thermal-structural coupling
Creep, fatigue, and plastic deformation modeling
Transient thermal cycling simulation
Experience with ANSYS Mechanical, Abaqus, or COMSOL Multiphysics
Stress & Fatigue Analysis
High-cycle and low-cycle fatigue under thermal gradients
Ratcheting, creep-fatigue interaction, and hold-time effects
Use of ASME Section VIII Division 2 fatigue methods
Life prediction per API 579-1/ASME FFS-1 (Fitness for Service)
Pressure Vessel & High-Temperature Design
Detailed knowledge of ASME Section VIII Div. 1 & Div. 2
Familiarity with Section II (Materials), Section IX (Welding Qualifications), and Section V (NDE)
Design by Analysis (DBA) per ASME Div. 2 Part 5
Experience with allowable stress extrapolation beyond tabulated temperature ranges
Materials Engineering
Metallurgy of nickel alloys, Hastelloy, Inconel, and stainless steels
Corrosion and embrittlement mechanisms in fluoride or chloride molten salts
Grain growth, creep, and sensitization at sustained high temperatures
Ability to interpret creep rupture data and Larson-Miller parameters
Thermal-Mechanical Systems Analysis
Heat-transfer modeling (conduction, convection, and radiation)
Transient startup/shutdown cycle modeling
Thermal stress due to gradients and local discontinuities
Coupled CFD-FEA simulation for localized hotspots
Failure Modes and Life Prediction
Experience with fatigue crack growth (Paris Law) and fracture mechanics
Corrosion-assisted cracking and creep rupture models
Development of inspection intervals based on damage accumulation
Analytical & Computational Expertise
Proficiency in Python/Matlab for life-cycle modeling or custom material property interpolation
Knowledge of ASME allowable stress extrapolation for non-listed materials or extended temperature ranges
Statistical reliability and uncertainty quantification (Monte Carlo, probabilistic FEA)
Familiarity with high-temperature design codes (ASME Section III, RCC-MRx, or HBB for nuclear applications)
Bonus Skills
Familiarity with Molten Salt Reactor (MSR) or Concentrated Solar Power (CSP) vessels
Experience with salt chemistry control, oxygen getters, and corrosion mitigation
Knowledge of weld metallurgy and post-weld heat treatment at elevated temperatures
Thermal insulation system design and finite-volume heat-flux evaluation
Work Environment
Exposure to high temperatures, chemical handling, and in-glovebox operations.
Full-body personal protective equipment (PPE) must be worn as required.
Training will be provided for specific procedures and equipment operation.
Compensation and Benefits
Benefits and Competitive salary commensurate with experience.
Paid time off and professional development opportunities.
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The ideal candidate will have extensive design and fabrication experience, capacity for mechanical analyses including but not limited to stress distribution, vibration, fatigue and other failure modes, pressure, and thermal shock. They must also be comfortable working in both laboratory and industrial environments with high-temperature systems and have experience building components and structures, recording data, communicating results through both oral and written communication, designing and implementing a variety of tests on structural components and systems, and managing buildouts of industrial processes. A PE license is highly preferred.
Key Responsibilities
Molten Salt Handling
Work in a multidisciplinary team to install and operate a high temperature molten salt fabrication processes.
Design and prototype systems, structures, and components of molten salt fabrication facilities.
Work with a team to complete complex tasks and accurately characterize results.
Assist in HAZOP reviews and ECM of the process equipment.
Set up, operate, and maintain high-temperature industrial equipment.
Operate, maintain, and repair inert atmosphere glove boxes.
Qualifications Required:
Bachelors or masters degree in mechanical engineering plus 10+ years of industry experience
CSWP or proven competency in CAD.
Strong attention to detail and organizational skills.
Strict adherence to laboratory and industrial safety and chemical safety protocols.
Experience designing, prototyping, and troubleshooting a variety of mechanical components
Ability to wear full-body personal protective equipment (PPE) properly for 90 minutes at a time.
Preferred:
Candidates with a PE license that can sign off on engineering designs.
Certifications for CAD or similar drawing/design software.
Experience with a variety of machining and fabrication methods/techniques.
Familiarity with laboratory and industrial software/data systems.
Core Technical Skills Finite Element Analysis (FEA)
Nonlinear thermal-structural coupling
Creep, fatigue, and plastic deformation modeling
Transient thermal cycling simulation
Experience with ANSYS Mechanical, Abaqus, or COMSOL Multiphysics
Stress & Fatigue Analysis
High-cycle and low-cycle fatigue under thermal gradients
Ratcheting, creep-fatigue interaction, and hold-time effects
Use of ASME Section VIII Division 2 fatigue methods
Life prediction per API 579-1/ASME FFS-1 (Fitness for Service)
Pressure Vessel & High-Temperature Design
Detailed knowledge of ASME Section VIII Div. 1 & Div. 2
Familiarity with Section II (Materials), Section IX (Welding Qualifications), and Section V (NDE)
Design by Analysis (DBA) per ASME Div. 2 Part 5
Experience with allowable stress extrapolation beyond tabulated temperature ranges
Materials Engineering
Metallurgy of nickel alloys, Hastelloy, Inconel, and stainless steels
Corrosion and embrittlement mechanisms in fluoride or chloride molten salts
Grain growth, creep, and sensitization at sustained high temperatures
Ability to interpret creep rupture data and Larson-Miller parameters
Thermal-Mechanical Systems Analysis
Heat-transfer modeling (conduction, convection, and radiation)
Transient startup/shutdown cycle modeling
Thermal stress due to gradients and local discontinuities
Coupled CFD-FEA simulation for localized hotspots
Failure Modes and Life Prediction
Experience with fatigue crack growth (Paris Law) and fracture mechanics
Corrosion-assisted cracking and creep rupture models
Development of inspection intervals based on damage accumulation
Analytical & Computational Expertise
Proficiency in Python/Matlab for life-cycle modeling or custom material property interpolation
Knowledge of ASME allowable stress extrapolation for non-listed materials or extended temperature ranges
Statistical reliability and uncertainty quantification (Monte Carlo, probabilistic FEA)
Familiarity with high-temperature design codes (ASME Section III, RCC-MRx, or HBB for nuclear applications)
Bonus Skills
Familiarity with Molten Salt Reactor (MSR) or Concentrated Solar Power (CSP) vessels
Experience with salt chemistry control, oxygen getters, and corrosion mitigation
Knowledge of weld metallurgy and post-weld heat treatment at elevated temperatures
Thermal insulation system design and finite-volume heat-flux evaluation
Work Environment
Exposure to high temperatures, chemical handling, and in-glovebox operations.
Full-body personal protective equipment (PPE) must be worn as required.
Training will be provided for specific procedures and equipment operation.
Compensation and Benefits
Benefits and Competitive salary commensurate with experience.
Paid time off and professional development opportunities.
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