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1D Simulation Engineer Jobs in Washington, IL (NOW HIRING)

1D Simulation Engineer information

See Washington, IL salary details

$36.8K

$116.4K

$179.7K

How much do 1d simulation engineer jobs pay per year?

As of Jul 27, 2026, the average yearly pay for 1d simulation engineer in Washington, IL is $116,386.00, according to ZipRecruiter salary data. Most workers in this role earn between $86,800.00 and $138,200.00 per year, depending on experience, location, and employer.

What are 1D Simulation Engineers?

1D Simulation Engineers are professionals who use one-dimensional (1D) simulation tools to model and analyze the behavior of complex systems, such as automotive engines, hydraulic circuits, or thermal management systems. They focus on simulating the performance of these systems using mathematical models, often to predict behavior, optimize designs, or solve engineering problems before physical prototypes are built. Their work helps reduce development costs, improve efficiency, and accelerate product development cycles. 1D Simulation Engineers typically work closely with design, testing, and other engineering teams.

How does a 1D Simulation Engineer typically collaborate with cross-functional teams during a project?

As a 1D Simulation Engineer, you will frequently work alongside design, testing, and product development teams to ensure that simulation models align with project requirements and real-world data. Collaboration often involves sharing simulation results, validating models with physical test data, and iteratively refining system behavior based on feedback from other engineering disciplines. Effective communication and the ability to translate technical findings into actionable insights for non-simulation stakeholders are crucial for project success.

What are the key skills and qualifications needed to thrive as a 1D Simulation Engineer, and why are they important?

To thrive as a 1D Simulation Engineer, you need a strong background in engineering fundamentals, physics, and mathematics, typically supported by a degree in mechanical, automotive, or aerospace engineering. Proficiency with 1D simulation tools such as GT-SUITE, AMESim, or Simulink, along with experience in data analysis and modeling, is essential. Strong problem-solving abilities, attention to detail, and collaborative communication skills help distinguish top performers in this field. These skills are crucial for accurately modeling complex systems, optimizing designs, and ensuring effective teamwork in multidisciplinary engineering projects.

What is the difference between 1D Simulation Engineer vs Mechanical Design Engineer?

Aspect1D Simulation EngineerMechanical Design Engineer
Required CredentialsBachelor's or Master's in Mechanical, Aerospace, or related fields; proficiency in simulation softwareBachelor's or Master's in Mechanical Engineering; CAD and design software skills
Work EnvironmentEngineering teams, R&D labs, simulation centersDesign offices, manufacturing facilities, R&D labs
Industry UsageAutomotive, aerospace, energy sectors focusing on system-level simulationsProduct development, machinery, consumer electronics

The main difference is that a 1D Simulation Engineer specializes in creating and analyzing system-level simulations using specialized software, focusing on fluid dynamics, thermodynamics, and system behavior. In contrast, a Mechanical Design Engineer primarily focuses on designing physical components and assemblies. Both roles require engineering credentials, but their daily tasks and tools differ significantly.

What cities near Washington, IL are hiring for 1D Simulation Engineer jobs? Cities near Washington, IL with the most 1D Simulation Engineer job openings:
Infographic showing various 1D Simulation Engineer job openings in Washington, IL as of July 2026, with employment types broken down into 28% Full Time, 12% Part Time, 37% Temporary, 1% Contract, and 22% Nights. Highlights an 91% Physical, 7% Hybrid, and 2% Remote job distribution, with an average salary of $116,386 per year, or $56 per hour.
Performance / Simulation / Application Engineer

Performance / Simulation / Application Engineer

Caterpillar

Mossville, IL • On-site

$97K - $146K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted yesterday


Caterpillar Inc. rating

7.5

Company rating: 7.5 out of 10

Based on 474 frontline employees who took The Breakroom Quiz

264th of 486 rated machine equipment manufacturers


Job description

Career Area:
Engineering
Job Description:
Your Work Shapes the World at Caterpillar Inc.
When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.
Caterpillar Inc. seeks Performance / Simulation / Application Engineer at its facility located at 2427 E Engine Drive, Chillicothe, IL 61523. Utilize analytical techniques to develop and validate cooling systems for machines and power systems, focusing on new product development and continuous improvement. Collaborate with design and validation teams and participate in lab and field testing to validate and correlate analysis models. Select cooling system layouts, sizing, and choose heat exchangers and fans using 1D simulation tools. Perform CFD analysis of cooling components and systems while supporting the continued development of analytical processes and tools. Provide simulation support for electrification projects across Caterpillar platforms, as well as cooling performance simulations for diesel-powered applications. Conduct 1D system simulations for upfront system sizing and component selection and perform advanced CFD simulations for virtual design and validation. Execute application-specific cooling system analysis projects, develop cooling system layouts, and optimize cooling air and water systems. Collaborate with design partners to meet technical and regulatory requirements and conduct component CFD analysis to evaluate performance characteristics. Develop CFD models to analyze airflow through cooling packages and predict component temperatures using under-hood thermal models. Work closely with test engineers to correlate analysis models and resolve cooling-related field issues. Contribute to improving simulation methods and processes while helping establish technical requirements and specifications for new products. REQS: This position requires a bachelor's degree or foreign equivalent in Mechanical Engineering, Agricultural Engineering, Aerospace Engineering or a related field plus 2 years of engineering experience with performance analysis of systems or components for on and off highway machines and vehicles, gas and diesel engines, or gas and diesel power systems or related occupation. In the alternative, employer will accept a master's degree, or foreign equivalent, in Mechanical Engineering, Chemical Engineering, Aerospace Engineering, Agricultural Engineering or a related field plus 1 year of engineering experience or training with performance analysis of systems or components for on and off highway machines and vehicles, gas and diesel engines, or gas and diesel power systems or related occupation. Additionally, the applicant must have employment experience with: (1) 1-D and 3-D simulation tools for system analysis and validation, specifically for electrification and cooling performance projects; (2) Performing CFD simulations for virtual design and validation, ensuring optimized system functionality; (3) Conducting system simulations for upfront system sizing and selecting appropriate components for cooling systems; (4) Simulation result presentations and reports; (5) GT-Suite, AMESim, or other system modeling software; (6) Fluent, Star- CCM+, Simerics, OpenFOAM or other CFD software; (7) Hypermesh, ANSA, or other mesh generation software; and (8) Ensight, ParaView, or other similar post-processing software. Travel: None. Telecommuting: None. Employer will accept any suitable combination of training or experience.
Applicants who are interested in this position should apply via www.caterpillar.com/careers, search [Performance / Simulation / Application Engineer / Reference # R0000372869]. #LI-DNI
Summary Pay Range:
$97,530.00 - $146,290.00
Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.
Benefits:
Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.
  • Medical, dental, and vision benefits*
  • Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
  • 401(k) savings plans*
  • Health Savings Account (HSA)*
  • Flexible Spending Accounts (FSAs)*
  • Health Lifestyle Programs*
  • Employee Assistance Program*
  • Voluntary Benefits and Employee Discounts*
  • Career Development*
  • Incentive bonus*
  • Disability benefits
  • Life Insurance
  • Parental leave
  • Adoption benefits
  • Tuition Reimbursement

* These benefits also apply to part-time employees
This position requires working onsite five days a week.
Visa Sponsorship is not available for this position.
Posting Dates:
May 27, 2026 - September 23, 2026
Any offer of employment is conditioned upon the successful completion of a drug screen.
Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.
Not ready to apply? Join our Talent Community.

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