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Senior Thermofluids Engineer

Hawthorne, CA, US • Posted 1 day ago • Updated 4 hours ago

Full Time

On-site

USD $180,000.00 - 230,000.00 per year

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Job Details

Skills

Microsoft Exchange
Thermal Analysis
Level Design
Interfaces
Design Review
Inspection
Assembly
Instrumentation
Aerospace
Thermodynamics
Fluid Mechanics
3D Computer Graphics
Distribution
Mechanical Engineering
Network
Technical Communication
Workflow
Modeling
Design Optimization
Design For Manufacturability
Adobe AIR
Heat Transfer
Energy
Startups
Management
Collaboration
Control Flow Diagram
Computational Fluid Dynamics
Hardware Development
Manufacturing
Computer Hardware
Testing
Insurance
Audiovisual
AV

Microsoft Exchange
Thermal Analysis
Level Design
Interfaces
Design Review
Inspection
Assembly
Instrumentation
Aerospace
Thermodynamics
Fluid Mechanics
3D Computer Graphics
Distribution
Mechanical Engineering
Network
Technical Communication
Workflow
Modeling
Design Optimization
Design For Manufacturability
Adobe AIR
Heat Transfer
Energy
Startups
Management
Collaboration
Control Flow Diagram
Computational Fluid Dynamics
Hardware Development
Manufacturing
Computer Hardware
Testing
Insurance
Audiovisual
AV

Summary

Senior Thermofluids Engineer - Lead thermal hardware development for next-generation power systems

Hawthorne, California | On-site

Opportunity Summary

Join a well-capitalized seed-stage energy hardware company developing a new generation of compact, high-output power systems. The team is redesigning traditional power-generation architecture around advanced thermodynamic cycles, modern turbomachinery, and factory-built hardware that can be deployed significantly faster than conventional power infrastructure. As a Senior Thermofluids Engineer, you will own the thermal-fluid design of the heat-exchange hardware at the center of the system. You will drive architecture, 3D CFD analysis, CAD design, sizing, supplier execution, and hardware validation across high-pressure and high-temperature operating conditions. This is a hands-on role for an engineer who can move between analysis and detailed mechanical design, then carry that work into fabricated and tested hardware.

About Us

We are a recently funded seed-stage energy technology company building modular power-generation hardware for rapidly growing energy markets. Our approach combines advanced turbomachinery, compact heat-transfer systems, and scalable manufacturing to create power equipment with a smaller physical footprint and reduced infrastructure requirements. Hardware is already being assembled and tested, with the team moving quickly toward larger systems, customer deployments, and production.

Job Duties

Own thermal-fluid design for the system's recuperation, primary heat-transfer, and heat-rejection hardware
Lead 3D CFD analysis for flow distribution, heat transfer, pressure loss, thermal behavior, and conjugate heat-transfer problems
Build and iterate detailed CAD models of heat exchangers, manifolds, headers, flow passages, and associated thermal hardware
Translate CFD and thermal-analysis results directly into geometry and mechanical design changes
Size heat exchangers using effectiveness, NTU, heat-transfer, and pressure-drop analysis
Develop channel, core, header, and manifold geometries for efficient and uniform flow distribution
Predict thermal and fluid performance across nominal, transient, and off-design operating conditions
Build and maintain 1D thermal-hydraulic and network models to support component and system-level design decisions
Balance thermal performance, pressure drop, packaging, structural constraints, manufacturability, and schedule
Work closely with cycle, mechanical, structural, manufacturing, and test engineers to define interfaces and operating requirements
Lead technical coordination with heat-exchanger suppliers and fabricators through design reviews, manufacturing, inspection, and acceptance
Support hardware assembly, instrumentation, testing, troubleshooting, and model-to-test correlation
Use test results to improve CFD models, design assumptions, and future hardware iterations

Qualifications

Bachelor's degree or higher in mechanical engineering, aerospace engineering, or a related technical field
Strong foundation in heat transfer, thermodynamics, and fluid mechanics
Significant hands-on experience using 3D CFD for thermal-fluid hardware design
Experience with conjugate heat transfer, internal flows, pressure-drop prediction, and flow-distribution analysis
Strong CAD experience with the ability to independently create and modify detailed mechanical hardware
Experience using CAD and CFD together as part of an iterative design process
Hands-on experience designing and sizing heat exchangers or other high-performance thermal-fluid hardware
Experience calculating pressure drop, heat-transfer performance, effectiveness, and thermal operating limits
Proficiency with 1D or network-based thermal-fluid modeling
Track record of taking designs from analysis and CAD through fabrication and physical testing
Ability to work effectively across simulation, detailed design, suppliers, manufacturing, and test
Strong technical communication skills and comfort operating with significant engineering ownership

Preferred Experience

Supercritical CO? systems or other high-pressure, real-gas, or near-critical fluid applications
Compact or high-effectiveness heat exchangers such as printed-circuit, microchannel, or plate-fin designs
Advanced CFD workflows including conjugate heat transfer, meshing strategy, turbulence modeling, and model validation
Parametric CAD, design optimization, and design-for-manufacturing experience
High-temperature and high-pressure thermal systems
Additively manufactured heat exchangers or complex internal flow hardware
Air-cooled heat rejection or dry-cooling systems
Combustion-side heat transfer, fired heaters, burners, or related equipment
Pressure-containing hardware including thermal stress, creep, fatigue, and pressure-boundary design
Heat-exchanger testing and model-to-test correlation
ASME pressure vessel or heat-exchanger design standards
Turbomachinery, propulsion, power generation, nuclear, industrial process, or advanced energy hardware
Early-stage startup or rapid hardware-development experience

Why Join Us

Join a well-capitalized seed-stage company at the point where first-of-kind hardware is moving into larger-scale systems and customer deployment
Own a technically critical subsystem with direct influence on overall system efficiency, packaging, and performance
Work across CFD, CAD, hardware design, manufacturing, and test rather than operating only as an analyst
Work directly with the founding team and experienced engineers developing complex turbomachinery and power hardware
Take hardware from analysis and detailed design through fabrication, testing, iteration, and eventual production
Meaningful equity ownership
Company-sponsored medical, dental, and vision insurance
Fully stocked kitchen with snacks, coffee, and lunch

Compensation Details

$180,000 - $230,000

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Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 80183540
Position Id: 3dbe79e14d5b4dae9b330807c5e7f2c7
Posted 1 day ago

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