(1120165) Aftertreatment Systems Development Engineer
- Level
- Mid
Not stated in the posting: salary, work type, visa.
Open. First seen 6 November 2026.
About the role
Aftertreatment Systems Development Engineer
Mossville, IL
Diversified Services Network, Inc. (DSN) is seeking a full-time Aftertreatment Systems Development Engineer to join our team in Mossville, IL. We offer full benefits, PTO, 401k, and more! If you're looking to grow your career within an extremely reputable, stable Fortune 100 company - let's talk!
Position Overview
The Aftertreatment Systems Development Engineer advances the development and application of aftertreatment systems for diesel engine programs. This role combines catalyst simulation, system analysis, and validation testing to guide product development decisions.
Key Responsibilities
- Perform catalyst performance modeling and sizing for aftertreatment applications
- Evaluate catalyst sizing alternatives and aftertreatment capability across a range of operating conditions
- Analyze test-cell and field data to assess aftertreatment performance
- Combine simulation results with experimental data to identify performance gaps and recommend technical solutions
- Support catalyst and aftertreatment system selection, sizing, and application decisions
- Communicate results and issues to team members, suppliers, and engine system development partners
Requirements
Qualifications
Required
- Bachelor's degree in Engineering, Materials Science, Chemistry, or a related field from an accredited program, and 2–4 years of engineering experience
- Experience with engine or aftertreatment testing
- Knowledge of catalyst technology
- Background in product design and development
- Strong analytical thinking and problem-solving skills
- Excellent verbal and written communication skills, including the ability to convey technical information to team members, other departments, customers, and suppliers
- Ability to manage multiple priorities and adapt to changing demands
- Quick learner
Preferred
- Proficiency with data analysis tools
- 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 sound technical decisions
- Excellent interpersonal and collaboration skills
- Self-starter with strong technical leadership skills
Benefits
Diversified Services Network, Inc.'s standard text
- 401(k)
- Dental insurance
- Vision Insurance
- Disability insurance
- Employee assistance program
- Health insurance
- Health savings account
- Life insurance
- Paid time off
- Paid Holidays
Please follow the link to our website for a list of job openings in Engineering, IT, Project Management, and more! https://www.dsnworldwide.com
Salary expectations: 70,000-78,000 per annual
What this role asks for
87% of this description is written for the role. The rest is Diversified Services Network, Inc.'s standard text, folded away below.
Compared with Diversified Services Network, Inc.'s other open jobs.
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