Senior Thermal Engineer — AI-Driven HX Innovator

Phasic Energy Co; United States; Remote; USD 175,000 - 225,000; Full time

Benefits offered by this job

Early-stage equity

Healthcare coverage

Paid time off

Flexible work arrangement

Job summary

Phasic Energy Co is seeking a senior heat exchanger design engineer to design and iterate on HX concepts, translating OEM specs into manufacturable hardware with simulation-backed validation.

You will partner with product leads and OEM manufacturing, leveraging AI-driven design to explore the space, hit aggressive thermal targets, and deliver hardware ready for testing and certification.

Qualifications

• Masters or higher in Mechanical or Thermal Engineering with a thermal-fluid focus.
• 5+ years of hands-on heat exchanger or thermal management hardware design.
• Experience building first-principles 1D models (MATLAB, EES, or Python).
• Proficiency in CFD/thermal simulation tools and conjugate heat transfer problem setup.
• CAD proficiency (SolidWorks or Siemens NX) and ability to design internal flow passages.

Responsibilities

• Translate OEM specs into HX concepts and geometries, iterating toward performance and manufacturability targets.
• Use 1D models and CFD to inform design decisions and communicate trade-offs.
• Leverage AI-driven design process to explore the space and generate candidates.
• Design with additive manufacturing constraints and collaborate with manufacturing for reliability.
• Collaborate with OEM partners and product leads to align requirements and define done.
• Close the loop between simulation and testing, plan validation, and update models as needed.
• Build reusable tools and artifacts to increase team speed and quality.

Skills

Heat exchanger design

First-principles modeling

CFD analysis

Thermal management experience

Communication of trade-offs

Education

Masters or higher in Mechanical/Thermal Engineering

Tools

STAR-CCM+

Ansys Fluent

COMSOL

OpenFOAM

MATLAB

Python

EES

SolidWorks

Siemens NX

Job description

Phasic Energy Co is seeking a senior heat exchanger design engineer to design and iterate on HX concepts, translating OEM specs into manufacturable hardware with simulation-backed validation.

You will partner with product leads and OEM manufacturing, leveraging AI-driven design to explore the space, hit aggressive thermal targets, and deliver hardware ready for testing and certification.