Thermofluids Engineer II

About this Role

As the Thermofluids Engineer II, you will be responsible for driving fluid system design for thermal management on the spacecraft through analysis, test, and validation. This role supports development and characterization of thermomechanical and fluid systems for payload, vehicle, and propulsion applications. You will be responsible for defining performance metrics, operational requirements, and hardware requirements for ground testing and flight.

Day-to-day responsibilities include sizing thermofluid and system and component performance via hand calculations, simulation, and testing. Familiarity with typical thermomechanical hardware (valves, pumps, accumulators, heat exchangers, etc.), 0D and 1D fluid networks, and fluid system modeling is essential. Successful candidates thrive on solving hard problems, adapting to dynamic requirements, and collaborating across multiple domains. You will gain significant ownership, see your contributions rapidly come to life.

Responsibilities

Develop active thermal control systems for vehicle and payload thermal management

Develop fluid network models to interface with top level vehicle thermal model

Define hardware and operational requirements for fluid systems based on analysis and testing

Inform manufacturing and integration of thermal/fluid hardware onto the vehicle

Work collaboratively with other spacecraft disciplines (payload, mechanical, software, propulsion) to design and develop thermal/fluid systems to meet vehicle requirements

Characterize thermofluid performance of propulsion systems from analysis, ground testing, and flight data

Develop data processing infrastructure for ground and flight thermofluids systems

Basic Qualifications

B.S. in Mechanical Engineering, or a related discipline, with consideration given to equivalent professional experience (typically 1–3+ years)

1+ years experience in thermofluids and/or propulsion systems in a manufacturing environment

Strong heat transfer and incompressible fluid mechanics first principles

Background in 0D and 1D thermal and/or fluid networks

Expertise in one or more fluid or thermal modeling tools (SINDA/FLUINT, ANSYS, GFSSP, etc.)

Knowledge with thermomechanical systems: heat exchangers, cold plates, vacuum chambers, pumps, valves, RTDs, transducers, etc.

Hands-on experience in thermal and TVAC testing

Experience in MATLAB (or equivalent) for data processing and task automation

Excellent written and verbal communication skills with an aptitude for interdisciplinary technical communication

Preferred Skills and Experience

3+ years’ experience in thermofluids and/or propulsion systems in a manufacturing environment

Master’s degree in an engineering discipline, with consideration given to equivalent professional experience

Experience with Thermal Desktop, SINDA/FLUINT

Experience in propulsion systems and thruster characterization

A track record of taking ownership of projects and delivering results in a fast-paced environment

Pay Range

Salary Range: Eng II: $119,543- $152,749/ per year

This role is on-site in El Segundo, CA

Leveling and base salary is determined by job-related skills, education level, experience level, and job performance

You will be eligible for incentives in the form of stock options and/or long-term cash awards