Thermal Systems Simulation Engineer

Diversified Services Network, Inc.•Mossville, IL

2d•$65,000 - $70,000•Onsite

About The Position

Diversified Services Network, Inc. (DSN) is seeking a full-time Thermal Systems Simulation Engineer to join our team in Mossville, IL! We offer full benefits, PTO, 401k, and more! If you have a strong foundation in thermo-sciences and a passion for applying simulation tools to solve real-world cooling challenges across engine and electrification platforms within an extremely reputable, stable Fortune 500 company — let’s talk! We are seeking a Thermal Systems Simulation Engineer to develop and validate cooling systems used in construction, mining, power generation, marine, and locomotive applications — spanning both internal combustion engines and battery electric systems — fully on-site in Mossville, IL. Using 1-D and 3-D simulation tools, you will provide simulation support for electrification projects across various platforms and perform cooling performance simulation for diesel-powered applications. This role requires strong collaboration with design, system, and validation partners to deliver validated solutions against challenging program timelines.

Requirements

Bachelor’s degree in Mechanical, Agricultural, Aerospace Engineering, or a similar field required; Mechanical, Agricultural, or Aerospace preferred.
At least 1 year of engineering experience focused on cooling system performance for product development, with 1-D and/or CFD simulation experience.
Strong background in thermo-sciences — coursework or applied experience in fluid mechanics, thermodynamics, and heat transfer.
Excellent verbal, written, and presentation communication skills — able to convey technical information clearly to team members, process partners, and stakeholders.
Strong project management skills — able to handle multiple concurrent projects and shifting priorities effectively.
Ability to work collaboratively in a team environment across design, test, and program teams.

Nice To Haves

1-D or 3-D cooling component or system analysis experience; experience using 1-D tools such as GT-Suite.
Proficiency with CFD tools such as Fluent, Star CCM+, or OpenFOAM; proficiency with meshing tools such as ANSA or ANSYS Workbench/SpaceClaim.
Experience using CAD packages such as Creo.
Proficiency in at least one programming language such as Python, C++, or Java.
Working knowledge of diesel engines, powertrain cooling, lubrication systems, and/or electrification systems.
Knowledge of product development processes for machines, engines, and battery/electric systems.

Responsibilities

Conduct application-specific cooling system analysis; develop cooling system layouts and optimize cooling air and water systems using 1-D simulation tools for up-front system sizing and component selection.
Perform high-end Computational Fluid Dynamics (CFD) simulation for virtual design and validation — including component CFD to determine performance characteristics of heat exchangers, pumps, radiators, and aftercoolers.
Develop CFD models to understand airflow through cooling packages and underhood thermal models to predict component temperatures.
Collaborate with design partners to meet technical and regulatory requirements; correlate analysis models with test engineers to validate simulation accuracy.
Perform analysis to assist in resolving cooling-related field problems; determine root causes of issues and communicate design improvement recommendations to product development teams.
Help establish technical requirements and specifications for new products; contribute to continuous improvements in simulation methods and processes.