Senior Simulation Engineer - Fire and Explosion

Ul Solutions; Northbrook (IL); On-site; USD 85,000 - 125,000; Full time

Job summary

UL Solutions is seeking a Simulation Engineer to apply CFD, fire dynamics, and thermal sciences to assess hazard scenarios such as battery fires and explosions.

The role focuses on utilizing FLACS and FDS, supporting R&D projects, fire safety design, and code-compliance reviews in energy and built-environment sectors.

Qualifications

• Experience in CFD modeling, heat transfer, and combustion modeling.
• Experience with battery fire hazard analysis and gas explosions.
• Familiarity with fire safety design principles and code compliance.

Responsibilities

• Perform CFD simulations for fire and explosion hazard analysis and performance-based designs.
• Support large-scale battery fire testing and energy/building sector projects.
• Collaborate with R&D teams on modeling, verification, and client-facing engineering work.

Job description

The UL Solutions Research and Development team and Modeling and Simulation team is seeking a Simulation Engineer with a strong CFD, fire dynamics and thermal sciences background to support fire and explosion hazard modeling. This role applies advanced computational fluid dynamics, heat transfer, and combustion modeling to evaluate battery fires, gas explosions, and performance-based fire safety designs.
The engineer will primarily work with Flame Acceleration Simulator (FLACS) for deflagration explosion and gas dispersion analysis and Fire Dynamics Simulator (FDS), fire dynamics, smoke, and thermal impact modeling. The position supports large-scale battery fire testing, performance-based design (PBD), code compliance, and customer-facing engineering projects within the energy and built-environment sectors.
This role is intended for engineers trained in thermal-fluid sciences or CFD, who wish to specialize in fire and explosion safety engineering.