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Aftertreatment Development Engineer Jobs (NOW HIRING)

Ford Motor Company

Research Engineer

Dearborn, MI · On-site

Advanced Aftertreatment System Modeling & Simulation: Lead the design, development, and validation ... Contribute to systems engineering and quality document development, including Boundary Diagrams, P ...

Automotive Robotics Inc

Performance Engineer

Peoria, IL · On-site

Performance Engineer Individual to provide technical support in the development of Tier 4 Aftertreatment urea injection hardware and software strategies. Specific responsibilities will be developing ...

Automotive Robotics

Performance Engineer

Peoria, IL · On-site

Performance Engineer Individual to provide technical support in the development of Tier 4 Aftertreatment urea injection hardware and software strategies. Specific responsibilities will be developing ...

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Aftertreatment Development Engineer information

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$49K

$96.2K

$153.5K

How much do aftertreatment development engineer jobs pay per year?

As of Jun 8, 2026, the average yearly pay for aftertreatment development engineer in the United States is $96,155.00, according to ZipRecruiter salary data. Most workers in this role earn between $79,500.00 and $106,500.00 per year, depending on experience, location, and employer.

What is the difference between Aftertreatment Development Engineer vs Emissions Test Engineer?

AspectAftertreatment Development EngineerEmissions Test Engineer
CredentialsBachelor's or Master's in Mechanical, Chemical, or Automotive EngineeringBachelor's or Master's in Mechanical, Environmental, or Automotive Engineering
Work EnvironmentResearch labs, development centers, automotive manufacturersTesting facilities, laboratories, vehicle testing sites
Industry UsageDesign and optimize emission control systems like catalytic convertersConduct emissions testing and compliance verification

While both roles focus on vehicle emissions, the Aftertreatment Development Engineer primarily designs and develops emission control systems, whereas the Emissions Test Engineer conducts testing to ensure compliance. The former is more involved in system development, and the latter in testing and validation processes.

Infographic showing various Aftertreatment Development Engineer job openings in the United States as of May 2026, with employment types broken down into 1% Internship, 46% Full Time, and 53% Part Time. Highlights an 99% Physical, and 1% Hybrid job distribution, with an average salary of $96,155 per year, or $46.2 per hour.
SR. TECHNICIAN - TECHNICIAN - Engine and Aftertreatment Evaluation

SR. TECHNICIAN - TECHNICIAN - Engine and Aftertreatment Evaluation

Southwest Research Institute

San Antonio, TX • On-site

$17 - $23/hr

Full-time

Posted 17 days ago

Southwest Research Institute rating

8.8

Company rating: 8.8 out of 10

Based on 21 frontline employees who took The Breakroom Quiz

6th of 56 rated research

Job description

Who We Are:
The Engine and Aftertreatment Evaluation (EAE) section performs a wide array of evaluation and development programs utilizing engines, aftertreatment systems and components, fuels, lubricants and sensors to support our customers, which include OEMs, suppliers, government regulatory bodies and industry groups. This work supports a wide range of products, from proof of concept to development to in-field support and evaluation. The products developed and tested typically result in reduced environmental impacts (i.e. cleaner air), improved efficiency and/or increased customer satisfaction. By joining our team, you will receive an additional $500 in your first paycheck, minus taxes.
Objectives of this Role:
  • Assist with achieving section, department and division technical goals through project support (24/7 operation).
  • Projects typically involve the development and evaluation of products intended to reduce emissions and/or improve fuel economy, as well as demonstrate durability.
  • Support engineering and technical staff in testing and development of engines and pollution control systems for current and future power generation applications.
  • Mechanical assembly and disassembly of aftertreatment test systems, engines and associated support systems, including installation into specialized test cell laboratories.
  • Conduct calibration, operation and maintenance of high precision measurement equipment, including various emission measurement devices.
  • Utilize various software packages to operate test cells, interact with engine control units, perform calibrations and process / analyze data.

Daily and Monthly Responsibilities:
  • Operate various test cells utilized to evaluate and characterize the performance of diesel aftertreatment systems.
  • Involves establishing and following procedural requirements to ensure repeatable, precise and accurate measurements.
  • Perform calibrations on various measurement systems utilized throughout the laboratory (temperature, pressure, flow, speed, concentration, emissions, etc.).
  • Assist with the installation and removal of engines into test cells, along with necessary support equipment.
  • Perform check-in of client-supplied and SwRI ordered materials.
  • Perform maintenance on and modifications to gasoline, diesel and natural gas engines, as well as building and test cell support systems.
  • Interface with various software packages to verify test parameters are being met, as well as troubleshooting any abnormal operation.

Requirements:
  • Requires a high school diploma or equivalent.
  • Shift work required.
  • 2 - 10 years: Hands-on experience with automotive tools and/or engines as mechanic, welder, fabrication, test cell operator.
  • A valid/clear driver's license is required.

Special Requirements:
Job Locations: San Antonio, Texas
For more information about this division, visit the Powertrain Engineering home page.
For benefits information at our San Antonio location, click here .
For benefits information at all other locations, click here .
An Equal Employment Opportunity Employer: race, color, religion, sex, national origin, disability, and veteran status.

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