Staff Thermal-Fluids Analysis Engineer Verified today

Ursa Major · Remote · Mechanical · first seen 2026-08-06

The Role

As a Staff Thermal-Fluids Analysis Engineer, you will support all product design programs through a broad variety of fluid analysis techniques. You will be exposed to all systems on our engines and the unique challenges each component presents.

Key Responsibilities

Use hand calculations and steady CFD to predict fluid behavior throughout the engine system and its components, assessing pressure drops and mass flow distributions.
Build steady-state and transient 1D models of engine fluid systems to predict component operating states and engine startup behavior.
Identify potential design improvements and collaborate with other engineering teams to develop engines while ensuring they meet system-level requirements.
Work closely with the test team to request instrumentation necessary to anchor analytical models.
Support anomaly investigations by building transient 1D fluid models to recreate measurements recorded during engine operation.
Own fluid models of rocket engines and related systems, supporting concept and clean-sheet designs as well as mature system improvements.
Improve Ursa's analytical methods and seek out new approaches and tools.
Provide professional development, mentorship, and technical guidance to peers.
Assess the risk and performance of hardware and provide proactive feedback to the design team based on your work results.

Minimum Requirements

B.S. degree in Mechanical Engineering, Aerospace Engineering, or comparable field.
5+ years of combined fluids analysis experience (CFD and 1D).
Experience in Computational Fluid Dynamics (CFD) using commercial codes (ANSYS Fluent or CFX preferred; StarCCM+ or similar tools acceptable).
Experience developing steady and transient 1D models using ROCETS or GFSSP. Knowledge of SINDA/FLUINT, FloCAD, AFT Arrow/Fathom/Impulse, Flownex, Flowmaster, GT-SUITE, or comparable lumped parameter analysis tools.
Demonstrated experience in fluid mechanics, thermodynamics, and heat transfer.
Programming experience (Python ideal; MATLAB or other high-level languages acceptable).
Basic experience with 3D CAD software (Creo and NX ideal).
Experience with complex fluid-mechanical systems including combustors, turbomachinery, and control systems.
Excellent written and verbal communication skills.