Propulsion Systems Engineer

Propulsion System Simulation Engineer - Battery / Energy Systems Overview We are seeking a Propulsion System Simulation Engineer to support advanced engineering programs through detailed modeling and simulation of battery and energy storage systems. This role focuses on analyzing system performance, including discharge behavior, durability, and charging characteristics, to inform design and testing decisions. This is a hybrid position offering a balance of independent technical work and cross-functional collaboration within a fast-paced engineering environment.

Work Schedule & Environment Hybrid schedule (4 days onsite, 1 day remote)
Standard business hours with flexibility to support early start times as needed

Collaborative, cross-functional engineering environment

Key Responsibilities Conduct simulations of battery and propulsion systems, including:
Discharge performance

Charging behavior

System durability and lifecycle analysis

Analyze simulation results and recommend next steps to support engineering and testing decisions

Track simulation outputs, assumptions, and action items for ongoing program support

Manage and prioritize simulation workload across multiple projects

Collaborate with engineering, validation, and design teams to integrate simulation insights

Maintain detailed documentation of simulation models, inputs, and results

Support continuous improvement of simulation methodologies and workflows

Ensure simulations align with project timelines and engineering standards Qualifications Bachelor's or Master's degree in Mechanical, Electrical, Systems Engineering, or a related field

Minimum 2+ years of experience in:
Battery systems

Energy storage

Electric propulsion or similar simulation environments Required Skills Proficiency in simulation tools such as: MATLAB/Simulink Python or equivalent modeling tools

Strong understanding of battery system performance, including charging, discharge, and durability

Strong analytical skills with the ability to interpret complex data and drive decisions

Excellent documentation and communication skills Preferred Skills

Experience with battery pack modeling or electric propulsion systems

Knowledge of battery cell, module, and pack-level electrical and thermal behavior

Experience with simulation workflows related to:
Fast charging (DCFC)
Discharge profiling

Durability modeling

Experience managing simulation workloads across multiple programs

Ability to support knowledge transfer and documentation for ongoing engineering efforts Core Competencies Strong attention to detail and technical accuracy

Ability to work independently while contributing to team objectives

Effective collaboration across engineering disciplines

Adaptability in a fast-paced, project-driven environment

Propulsion Systems Engineer
• Tustin, CA, US