Staff Simulation Engineer

Your Job

As part of Molex's strategic investment in CAEPlus and the ongoing development of next-generation AI data center thermal management solutions, this position will operate in a unique collaboration model between the two organizations. While employed by Molex and receiving all Molex employment benefits, the successful candidate will work closely with the CAEPlus team and focus primarily on advancing CAEPlus technologies, products, and innovation initiatives. This role offers the entrepreneurial environment of a growing technology venture combined with the resources, stability, and engineering expertise of a global industry leader.

What You Will Do

• Lead CFD and thermal-fluid simulation of active cold plate designs, including laminar and turbulence modeling, and fluid dynamic behavior at the chip interface
• Develop and validate multi-physics models, such as conjugate heat transfer (CHT) and, where needed, fluid-structure interaction (FSI), correlating predicted thermal and hydraulic performance to prototype test data
• Collaborate with mechanical, mechatronics, and PCB design engineers to translate simulation results into actionable design changes
• Perform structural and thermal FEA on cold plate assemblies, housing, and active actuation system components
• Simulate potential leakage pathways and failure modes in cold plate and manifold assemblies across the overall cooling system
• Support design of experiments (DOE) for prototype validation testing correlated against simulation predictions
• Own simulation toolchain setup, meshing strategy, and solver configuration for complex internal cold plate geometries
• Support the invention disclosure and patent process by generating simulation data, figures, and technical substantiation
• Develop 1D system-level simulation models, reduced-order models or empirical correlations to accelerate design iteration
• Support customer-facing technical presentations with simulation-backed performance data

Who You Are (Basic Qualifications)

• BS in Mechanical Engineering or equivalent
• 7+ years of experience in CFD, FEA, conjugate heat transfer (CHT), and multi-physics simulation
• Proficiency with commercial CFD tools (Ansys Fluent, CFX, STAR-CCM+, or equivalent)
• Proficiency with FEA tools (Ansys Mechanical, Abaqus, or equivalent)
• Experience simulating liquid cooling hardware: cold plates, manifolds, heat exchangers
• Strong understanding of fluid dynamics, heat transfer, and thermal-hydraulic system design
• Demonstrated experience correlating simulation results to physical test data

What Will Put You Ahead

• MS or PhD in Mechanical Engineering, Thermal Sciences, or a related field
• Experience with advanced meshing techniques (dynamic meshing, adaptive meshing, etc.) for dynamic models, such as rotating machinery or pumps
• Experience with two-phase flow or boiling heat transfer simulation
• Familiarity with Open Compute Project (OCP) thermal standards
• Experience developing 1D system-level simulation models, reduced-order models, or surrogate models for rapid design iteration
• Python or MATLAB scripting for simulation automation and post-processing
• Experience supporting patent disclosures with simulation-based technical evidence

For this role, we anticipate paying $100,000 - $130,000 per year. This role is eligible for variable pay, issued as a monetary bonus or in another form.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Hiring Philosophy

All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here.

Who We Are

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Our Benefits

Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.

Equal Opportunities

Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E-Verify. Please click here for additional information. (For Illinois E-Verify information click here, aqui, or tu).

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