Diesel Aftertreatment Engineer II — Catalyst Modeling

Cullerton Group; Mossville (IL); On-site; USD 50,000 - 71,000; Full time

Benefits offered by this job

Health insurance

Vision insurance

Dental insurance

401k

Holiday pay

Job summary

Cullerton Group in Mossville, Illinois seeks a Dev/Research Engineer 2 – Diesel Engine Aftertreatment & Catalyst Performance to join an onsite team. You will support catalyst sizing, performance modeling, and system optimization using simulation tools and engine data.

This 12‑month position requires a bachelor's in engineering or closely related field and 2–4 years of relevant experience, with strong analytical and communication skills.

Qualifications

• Bachelor's degree in Engineering, Materials Science, Chemistry, or related technical field.
• 2–4 years of relevant professional experience in engineering development, engine testing, aftertreatment systems, catalyst technology, performance analysis, or related fields.
• Experience with engine/testing or aftertreatment testing and interpreting results.
• Knowledge of catalyst technology and its applications in engine aftertreatment systems.
• Strong analytical and communication skills; ability to work independently and in teams.

Responsibilities

• Catalyst performance modeling, simulation, and sizing analysis for diesel aftertreatment systems.
• Evaluate catalyst sizing alternatives and system performance across operating conditions.
• Analyze engine test-cell data, field data, and simulations to identify gaps and solutions.
• Support catalyst selection, sizing, validation, and application decisions through engineering analysis.
• Collaborate with engineering teams, suppliers, and partners to communicate results and troubleshoot issues.

Skills

Catalyst technology knowledge

Data analysis

Analytical thinking

Problem solving

Education

Bachelor's degree in Engineering or closely related field

Tools

CAD software

Simulation tools

Engine test data analysis software

Job description

Cullerton Group in Mossville, Illinois seeks a Dev/Research Engineer 2 – Diesel Engine Aftertreatment & Catalyst Performance to join an onsite team. You will support catalyst sizing, performance modeling, and system optimization using simulation tools and engine data.

This 12‑month position requires a bachelor's in engineering or closely related field and 2–4 years of relevant experience, with strong analytical and communication skills.