Jobs in the United States

25+ jobs

Added 1 min ago
Nuclear Engineering & Radiation Safety Officer
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Demonstrated proficiency with MCNP or comparable particle-transport simulation tools for shielding design, dose calculations, and interpretation and validation of simulation results.
Added 2 mins ago
A
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Actalent
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- $60 to $75 USD / hour
…under real-world conditions with proficiency in 3D modeling and simulation tools (e.g., SolidWorks, CATIA, NX, or…
Added 8 mins ago
Senior Principal Space Systems Engineer
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Added 15 mins ago
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…AI-powered products. We deliver industry-leading silicon design, IP, simulation and analysis solutions, and design services. We partner closely with our customers across a wide range of…
Added 18 mins ago
Dist. Scientist, Research Science
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Added 21 mins ago
Senior Manager of Electrical Engineering, Compute & Sensing
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Added 28 mins ago
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Automotive Program Facilitator
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New Haven, CT
- $66,804 USD / year
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Added 30 mins ago
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- $158,000 to $218,000 USD / year
Experience working with robotics, embedded systems, or software that interacts with physical hardware, including hardware-in-the-loop testing, simulation, or debugging timing-related issues.
Added 30 mins ago
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- $69,300 to $158,000 USD / year
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Added 38 mins ago
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- $119,200 to $264,100 USD / year
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Added 39 mins ago
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Added 45 mins ago
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Added 46 mins ago
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…Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and…
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Added 52 mins ago
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Exposure to modeling, simulation, or analytical tools
Added 53 mins ago
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- $224,000 to $269,000 USD / year
Test-to-Simulation Correlation: Analyze vehicle road load data and correlate findings with simulations to continuously improve model accuracy and establish standardized methodologies.
Added 53 mins ago
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Maintain current knowledge of relevant technologies as applicable, including USG variants and the Wrap-Around Simulation Program (WASP).
Added 59 mins ago
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Lead algorithm, modeling, and simulation activities supporting emerging sensing technologies.
Added 1 hour ago
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Modeling & Simulation Engineer
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As a Modeling and Simulation Engineer, every day will bring exciting new challenges, including:
Added 1 hour ago
2027 Internship - Mechanical Engineer
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Laurel, MD
Conduct simulation, analysis and testing of mechanical systems.
Added 1 hour ago
ZG
Staff Manufacturing Engineer
ZT Group Intl, Inc. dba ZT Systems
Secaucus, NJ
- $93,000 to $136,400 USD / year
Evaluate and apply advanced statistical, analytical, optimization, and simulation methodologies to manufacturing processes and operational challenges, using quantitative analysis to develop…

Performance/Simulation/Application Engineer

Mossville, IL, United States

$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.

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Job details

Pay: $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.
Apply by: Nov 11, 2026
Posting language: English
Posted: Nov 3, 2026

Original 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.

Performance/Simulation/Application Engineer Mossville, IL

Job Summary:

The Large Power System Division currently seeking a Catalyst Performance/Simulation/Application Engineer who will support the development and application of aftertreatment systems through catalyst sizing, performance simulation, system analysis, and validation. The engineer will use simulation and test data to evaluate catalyst performance, optimize aftertreatment system sizing, and provide technical recommendations supporting product development and application programs.

What you will do:

Perform catalyst performance modeling and sizing to support aftertreatment applications.
Evaluate catalyst sizing alternatives and aftertreatment capability across operating conditions.
Analyze test-cell and field data to assess aftertreatment performance; this type of data review is specifically included in your prior requisition.
Use simulation results and experimental data to identify performance gaps and recommend technical solutions.
Support catalyst and aftertreatment system selection, sizing, and application decisions.
Develop and communicate technical conclusions, assumptions, risks, and recommendations.
Partner with design, test, controls, application, and program teams to resolve aftertreatment performance issues.
Support project execution by providing timely analysis, technical direction, and documentation.

Education and Experience Requirement:

Master’s degree in Mechanical Engineering, Chemical Engineering, or a related engineering discipline.
Hands-on experience performing catalyst sizing and catalyst performance simulation/modeling.
Demonstrated experience evaluating aftertreatment system capability and catalyst sizing tradeoffs, consistent with responsibilities identified in the existing engineering requisition.
Experience analyzing engineering data and translating simulation or test results into technical recommendations.
Strong analytical and problem-solving skills.
Ability to communicate technical findings and recommendations clearly to engineering teams and project stakeholders

Skills you will have:

Process Management: Working knowledge of business process improvement tools and techniques; ability to understand, monitor, update, control, or enhance existing business or work processes.
Accuracy and Attention to Detail: Working knowledge and understanding the necessity and value of accuracy; ability to complete tasks with high levels of precision.
Analytical Thinking: Working knowledge of techniques and tools that promote effective analysis; ability to determine the root cause of organizational problems and create alternative solutions that resolve these problems.
Effective Communications: Working knowledge and understanding of effective communication concepts, tools and techniques; ability to effectively transmit, receive, and accurately interpret ideas, information, and needs through the application of appropriate communication behaviors.
Problem Solving: Extensive knowledge of approaches, tools, techniques for recognizing, anticipating, and resolving organizational, operational or process problems; ability to apply knowledge of problem solving appropriately to diverse situations.
Technical Excellence: Working knowledge of a given technology and various application methods; ability to develop and provide solutions to significant technical challenges.
Project Management: Basic knowledge of effective project management strategies and tactics; ability to plan, organize, monitor, and control projects, ensuring efficient utilization of technical and administrative resources to achieve project objectives.
Computer-Aided Design & Engineering: Working knowledge of tools and techniques of specialized graphics programs; ability to produce, analyze, simulate and test product design drafts

Top Candidates Will Have:

Experience with diesel or natural-gas engine aftertreatment systems.
Experience with catalyst technologies and system-level aftertreatment development.
Experience correlating simulation predictions with laboratory, test-cell, or field results.
Knowledge of emissions performance, exhaust thermal conditions, conversion efficiency, and catalyst aging/deterioration.
Experience supporting new-product or application-development programs.
Familiarity with catalyst canning and DEF system components.
Ability to work/lead multiple projects simultaneously and to make sound priority decisions.

Additional Information:

This position is located in Mossville, IL.
Domestic relocation assistance is available for this position.
Visa sponsorship is available for this position.

Please ensure you frequently sign in to your candidate home for any updates or correspondence for positions that you have applied for. https://cat.wd5.myworkdayjobs.com/CaterpillarCareers.

Keep a frequent check on emails as correspondence will be sent to the email that you used to apply with.

#LI

Summary Pay Range:

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.

Relocation is available for this position.

Visa sponsorship is available for eligible applicants.

Posting Dates:

November 3, 2026 - November 10, 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.

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More about this job

Skills

Documentation
Mechanical engineering
Chemical engineering
Problem solving
Business knowledge
Process improvement
Attention to detail
Analytical skills
Communication skills
Project management
Natural gas

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