Engine Test & Research Engineer II - Mossville; Onsite

Cullerton Group has a new opportunity for a Dev/Research Engineer 2. The work will be done onsite full-time in Mossville, IL. This is a long-term 24-month position that can lead to permanent employment with our client. Compensation is up to $41/hr + full benefits (vision, dental, health insurance, 401k, and holiday pay).

Cullerton Group is seeking a Dev/Research Engineer to support advanced engine development and testing activities focused on large dual-fuel engine technologies. This role will work closely with engine development engineers and test cell teams to execute engine test plans, troubleshoot engine and test cell issues, and support performance and emissions validation activities. The engineer will contribute to hands‑on testing, data analysis, test setup preparation, and issue resolution within a fast‑paced engineering environment.

This is an excellent opportunity for engineers who enjoy analytical problem‑solving, engine development, and hands‑on testing work.

• Support and direct test cell operators during engine testing activities
• Troubleshoot engine, instrumentation, and test cell issues to minimize downtime and improve productivity
• Coordinate with facilities, instrumentation, mechanical, and support teams to resolve technical issues
• Prepare engine and test cell setups to support development and validation test objectives
• Document engine hardware, test cell issues, and troubleshooting activities
• Research, design, develop, and test mechanical systems, engines, and related equipment
• Analyze engineering specifications, customer requirements, and technical data to support project execution
• Assist with data analysis, performance validation, and emissions testing activities

• Bachelor’s degree in Mechanical Engineering or related engineering field
• 2–4 years of engineering experience; internships and co‑op experience will be considered
• Hands‑on experience with mechanical/electrical test setups and data acquisition equipment
• Strong troubleshooting, analytical thinking, and problem‑solving skills
• Ability to read and interpret blueprints, schematics, engineering drawings, and technical reports
• Proficiency with Microsoft Office tools
• Strong verbal and written communication skills with the ability to work collaboratively in team environments
• Self‑starter with strong attention to detail and ability to work in fast‑paced environments

• Understanding of diesel engine systems and engine testing environments
• Experience with data analysis and visualization tools such as MATLAB, CANape, or DIAdem
• Familiarity with emissions measurement equipment such as Horiba, AVL, or Allen Bradley systems
• Hands‑on experience troubleshooting large diesel engines or engine test cells preferred
• Exposure to CAD tools, instrumentation systems, or mechanical testing environments preferred
• Onsite full‑time role located in Mossville, IL
• Fast‑paced engine development and test operations environment
• Collaborative engineering team supporting engine testing, validation, and performance analysis activities
• Flexible scheduling opportunities may be available depending on testing activities and operational needs

This position offers an opportunity to contribute to advanced engine development and testing initiatives supporting next‑generation dual‑fuel engine technologies. You will work alongside experienced engineers and technical specialists while gaining valuable hands‑on experience with engine validation, troubleshooting, emissions testing, and performance analysis. Cullerton Group provides a professional environment with strong growth potential and long‑term career opportunities.