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Diesel Engine Aftertreatment Performance Engineer Jobs

Norton Energy Drilling

Diesel Engine Mechanic

Lubbock, TX · On-site

$38 - $44/hr

Provide recommendations for improved engine performance and longevity Knowledge and Skills * Excellent working knowledge of the most popular diesel engine makes with the ability to diagnose problems ...

Cummins

Diesel Engine Technician

Forest Park, GA · On-site

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins

Diesel Engine Technician

Forest Park, GA

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins

Diesel Engine Technician

Forest Park, GA · On-site

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins Inc.

Diesel Engine Technician

Forest Park, GA · On-site

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Norton Energy Drilling

Diesel Engine Mechanic

Lubbock, TX · On-site

$21.50 - $28.50/hr

Provide recommendations for improved engine performance and longevity Knowledge and Skills * Excellent working knowledge of the most popular diesel engine makes with the ability to diagnose problems ...

Norton Energy Drilling

Diesel Engine Mechanic

Lubbock, TX · On-site

$21.50 - $28.25/hr

Provide recommendations for improved engine performance and longevity Knowledge and Skills * Excellent working knowledge of the most popular diesel engine makes with the ability to diagnose problems ...

Cummins

Diesel Engine Technician

Forest Park, GA · On-site

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins

Diesel Engine Technician

Forest Park, GA

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins

Diesel Engine Technician

Forest Park, GA

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins

Diesel Engine Technician

Forest Park, GA · On-site

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

Cummins

Diesel Engine Technician

Forest Park, GA · On-site

We are looking for a talented Diesel Technician to join our team specializing in engine repairs for ... systems, driveline, aftertreatment, controls, sensors, etc.) by applying tools, service ...

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Diesel Engine Aftertreatment Performance Engineer information

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$5

$39

$51

How much do diesel engine aftertreatment performance engineer jobs pay per hour?

As of Sep 13, 2026, the average hourly pay for diesel engine aftertreatment performance engineer in the United States is $39.75, according to ZipRecruiter salary data. Most workers in this role earn between $32.69 and $45.19 per hour, depending on experience, location, and employer.

What does a diesel engine aftertreatment performance engineer do?

A Diesel Engine Aftertreatment Performance Engineer is responsible for designing, testing, and optimizing aftertreatment systems that reduce harmful emissions from diesel engines. Their work involves ensuring compliance with environmental regulations, analyzing system performance, and troubleshooting issues related to components like diesel particulate filters (DPF), selective catalytic reduction (SCR) systems, and oxidation catalysts. They collaborate with other engineers to improve engine efficiency and help manufacturers meet emissions standards.

What are the key skills and qualifications needed to thrive as a diesel engine aftertreatment performance engineer?

To thrive as a Diesel Engine Aftertreatment Performance Engineer, you need a strong background in mechanical or automotive engineering, hands-on experience with diesel engine systems, and knowledge of emissions regulations. Familiarity with diagnostic tools, engine calibration software, and aftertreatment simulation platforms such as MATLAB/Simulink or AVL is typically required. Analytical thinking, problem-solving abilities, and effective communication skills set top performers apart in this role. These skills ensure the engineer can optimize aftertreatment systems for regulatory compliance, reliability, and overall engine performance.

How does a diesel engine aftertreatment performance engineer typically collaborate with other departments during emissions testing and validation?

Diesel Engine Aftertreatment Performance Engineers frequently work cross-functionally with teams such as calibration, controls, and testing during emissions testing and validation phases. They coordinate closely with test engineers to design and execute test plans, analyze data with calibration specialists, and communicate findings to product development and regulatory compliance teams. This collaborative approach ensures that aftertreatment systems meet emission standards, function reliably, and integrate seamlessly with the overall engine system. Regular meetings and shared documentation platforms are commonly used to streamline communication and address challenges promptly.

What are popular job titles related to Diesel Engine Aftertreatment Performance Engineer jobs?

For Diesel Engine Aftertreatment Performance Engineer jobs, the most frequently searched job titles are:

Diesel Engine Test-Cell Technician

Stoughton, WI

Cummins
Transportation Equipment Manufacturing • 10K+ employees
Learn more about Cumminsexternal

Full-time

Re-posted 2 days ago

Cummins rating

8.2

Company rating: 8.2 out of 10

Based on 271 frontline employees who took The Breakroom Quiz

Job description

We are looking for a talented Diesel Engine Test-Cell Technician to join our team specializing in Engineering for our Cummins Inc. facility in Stoughton, WI.

In this role, you will make an impact in the following ways: 

  • Prepare and configure test articles, fixtures, rigs, and equipment to ensure accurate, efficient, and timely execution of testing activities. 

  • Install instrumentation in accordance with engineering standards, delivering reliable data collection and support the integrity of test results. 

  • Support testing activities by following established procedures and methodologies, helping ensure safe, consistent, and repeatable test execution. 

  • Contribute to the validity of test outcomes through a strong understanding of test equipment functionality and its impact on data accuracy and performance evaluation. 

  • Apply product knowledge to assess test results, identify potential issues, and support accurate interpretation of product performance. 

  • Perform test stand installations, setups, and troubleshooting activities to maximize operational readiness and minimize testing delays. 

  • Maintain laboratory equipment and test systems to ensure a safe, reliable, and efficient testing environment. 

  • Collaborate with engineers, technicians, and cross-functional teams to support successful test programs, resolve technical challenges, and drive continuous improvement.

Cummins is an equal opportunity employer. Our policy is to provide equal employment opportunities to all qualified persons without regard to race, sex, color, disability, national origin, age, religion, union affiliation, sexual orientation, veteran status, citizenship, gender identity, or other status protected by law.

Additional Information

  • Operates Emission Lab engine test-cells, emissions analyzers and supporting equipment per daily test plan

  • Works with emission development engineers to evaluate the performance of exhaust aftertreatment systems throughout all stages of product development from early development to Current Product

  • Identifies and assist in diagnoses of technical malfunctions of the prototypes or the emissions equipment, interact with suppliers and internal experts to identify the root cause of issues, repair and prevent re-occurrence

  • Maintains test-cell and emissions equipment, including scheduling, and performing weekly/ monthly checks and preventative maintenance/repairs

  • Responsible for inventory management, sourcing and safe disposal of prototypes, testing materials/fixtures and lab consumables

To be successful in this role you will need the following: 

  • Demonstrate strong attention to detail when preparing samples, verifying equipment calibration, and executing tests to ensure accurate, reliable, and trustworthy data collection. 

  • Effectively document test methods, instrument settings, data, and analysis so engineers and customers can clearly understand results and make informed decisions. 

  • Apply technical knowledge to interpret test requirements, configure test systems, select appropriate equipment and instrumentation, and ensure testing capabilities meet customer and laboratory needs. 

  • Build and configure test articles and test setups accurately while maintaining compliance with safety, environmental, and quality standards. 

  • Leverage strong analytical, data quality, and problem-solving skills to identify root causes, implement corrective actions, support continuous improvement, and prevent recurring issues.

Education/Experience

  • High school diploma, certificate of completion of secondary education or equivalent experience in an appropriate STEM field is required.

  • Regionally applicable certification or two-year associate's degree from an accredited college or university in a relevant field of study may be required.

  • This position may require licensing for compliance with export controls or sanctions regulations.

  • Requires some work experience and intermediate level knowledge obtained through education, training or on-the-job experience.

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About Cummins

Sourced by ZipRecruiter

Cummins Inc., headquartered in Columbus, IN, US, is a global power leader that designs, manufactures, and distributes numerous power products and systems. With its genesis from as early as 1919, the company readily serves diverse industries such as transportation, industrial, generator drive, or marine applications, among others. At the heart of Cummins' operations, its key product lineup encompasses diesel & natural gas engines, generator sets, engine components, and filtration, emission solutions, and electrical power generation systems. Cummins deeply embodies core values of integrity, respect for diversity, teamwork, performance excellence, and social responsibility - all of which dynamically fuel their mission 'Making people's lives better by powering a more prosperous world'.

Industry

Transportation equipment manufacturing

Company size

10,000+ Employees

Headquarters location

Columbus, IN, US

Year founded

1919

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