Demo

Aftertreatment Performance Engineer

Harvey Nash
Chillicothe, IL Contractor
POSTED ON 4/21/2026
AVAILABLE BEFORE 5/20/2026

Job Description

Summary:

The main function of a research engineer is to research and investigate the design, functionality and maintenance of mechanical products, equipment, systems and processes. A typical research engineer has the ability to make engineering drawings, and read and interpret blueprints.


Job Responsibilities:

• Research, design, develop, manufacture, and test tools, engines, machines and other mechanical devices.

• Research and analyze customer design proposals, specifications, manuals to determine time and cost feasibility to complete projects.

• Investigate equipment failures and difficulties to diagnose faulty operation and make recommendation to maintenance crew.

• Assist drafters in developing the structural design of products using tools, equipment or software.


Skills:

• Creativity, verbal and written communication skills, analytical and problem solving ability.

• Team player and detail oriented.

• Ability to make sketches, engineering drawings and common computations.

• Ability to read and interpret blueprints, technical drawing, schematics and computer-generated reports.

• Previous experience with computer applications and software related to engineering field, such as Computer Aided Design (CAD).


Education/Experience:

• Bachelor's degree in engineering required.

• 2-4 years experience required.


Position’s Contributions to Work Group:

Analysis of aftertreatment capability and sizing trade-offs. Design of catalyst canning and diesel exhaust fluid (DEF) system components. This individual will be a point of contact for aftertreatment test instruction, project plan status, results, and next steps.


Reason/motivation for request:

- Replacement


Why Client? “Whether it be ground-breaking products, best in class solutions or a lifelong career, you can build what matters to you at Client. With 150 locations in countries around the world, what you create at Client travels and helps people around the world. You can collaborate with the best minds in the industry, complete meaningful work and continuously grow and develop through our various opportunities. Here, you can do the work that matters.”


Typical task breakdown:

- Review test cell and field data and ensure no issues with Aftertreatment or performance shift.

- Ensure all cell hardware is accounted for, current and future programs. Make sure they are tracked properly electronically to accumulate hours.

- Troubleshoot and fix aftertreatment related issues/codes in test cell, especially during install

- Print releasing, knowledge and working with CAD based program and print reading.

- Component design (aftertreatment canning, injectors DEF pumps)

- Working with a purchasing team for quotes and proto-type part procurement

- FMEA analysis and validation planning and testing


Interaction with team:

- The individual will be responsible for communicating results and issues to team members, suppliers and engine system development process partners.


Work environment:

- Mainly office, some lab


Education & Experience Required:

- Years of experience: 2-5 years

- Degree requirement: Bachelor’s degree in an accredited Engineering, Material Science, Chemistry or related curriculum


Top 3 Skills

Analytical Thinking

Managing Multiple Priorities

Product Design and Development


Additional Technical Skills

(Required)

- Test or Design Experience

- 3D CAD program experience


(Desired)

- Proficiency in DatK and Canape

- Excellent analytical skills

- Experience with engine and/or aftertreatment performance data reduction and analysis.

- Strong understanding of engine and aftertreatment systems.

- Ability to draw conclusions from analysis and make decisions


Soft Skills

(Required)

- Excellent verbal and written communication skills

- Ability to adjust to multiple demands, changing priorities, multitask effectively

- Strong analytical and problem-solving skills

- Quick learner


(Desired)

- Excellent interpersonal and collaboration skills

- Self-starter with strong technical leadership skills

- Ability to communicate technical information effectively with team members and others in the work group, as well as employees in other units, customers, and suppliers

Salary : $39 - $41

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