Sr. Software Simulation Engineer

Factory Design & Simulation team is seeking a contract Simulation Engineer (DES) to support early manufacturing engineering and throughput architecture for the R2 ramp in Normal.
This role focuses on building and analyzing discrete event simulation models to guide factory and line design decisions before RFQ and detailed design.
You will work closely with Body GA Paint Battery Drive Unit and Material Flow teams to validate capacity size buffers and identify bottlenecks impacting R2 launch and ramp in Normal.

• Build discrete event simulation models (FlexSim preferred) for manufacturing and material flow use cases in Normal (e.g. intershop buffers ASRS sizing AGV flows shop overspeed tradeoffs).

• Translate highlevel factory requirements (demand shift pattern product mix FPY MTBF/MTTR) into simulationready input assumptions and scenarios.

• Run scenario and sensitivity studies (Experimenter) to:

  • Confirm line and shop net JPH vs. targets.

  • Quantify overspeed OPR/TEE and buffer requirements.

  • Evaluate jobspershift (JPS) regularity and risk envelopes.

• Summarize results in clear decisionfocused reports and slide content for ME and program leadership (e.g. options with tradeoffs on throughput risk and space).

• Collaborate with layout material flow and industrial engineering to align DES assumptions with real PORs and constraints.

• Follow Company DES standards and libraries for model structure naming documentation and handoff.

Required qualifications

• 3 years experience in automotive manufacturing engineering (e.g. body paint GA battery drive unit or material flow) with direct ownership of discrete event simulation projects.

• Expertlevel proficiency with Autodesk FlexSim

• Demonstrated experience modeling:

  • Multiline assembly systems with buffers and rework.

  • Stochastic behavior (failures repairs variability in process times).

  • Throughput / capacity and bottleneck analysis.

• Solid understanding of manufacturing KPIs (JPH JPS OEE/TEE MTBF/MTTR WIP buffer sizing).

• Ability to clean and structure input data define scenarios and explain model limitations and assumptions.

• Strong communication skills: can condense complex simulation logic into concise recommendations for nonsimulation stakeholders.

Preferred qualifications

• Familiarity with FlexScript / C / Python for custom logic and tooling in DES.

• Prior work on greenfield factory design or major capacity upgrades (launch and ramp).