Benefits:

• Competitive salary
• Opportunity for advancement
• Training & development

Embedded Software Engineer II

Location: Mossville, IL — Onsite, five days per week
Duration: 12-month contract


Why Join This Opportunity?

• Work on advanced embedded control software for diesel engine and aftertreatment systems.
• Contribute throughout the complete software development lifecycle.
• Collaborate with experienced software, systems, validation, and testing teams.
• Gain exposure to production-level embedded software in the heavy-equipment industry.
• Work in a primarily office-based engineering environment with limited laboratory interaction.

Position Overview
The AES Group Inc. is seeking an Embedded Software Engineer II to support the development, enhancement, documentation, validation, and maintenance of embedded engine-control and aftertreatment software.


The ideal candidate has hands-on experience with MATLAB, Simulink, and Stateflow, along with strong technical documentation and cross-functional communication skills.


Key Responsibilities

• Design, develop, and maintain embedded engine-control and aftertreatment software strategies.
• Create control logic, software models, flow diagrams, and architectures using MATLAB, Simulink, and Stateflow.
• Support concept development, implementation, validation, documentation, release, and production support.
• Troubleshoot existing production software and implement continuous improvements.
• Prepare technical documentation, engineering diagrams, flowcharts, and ISO-aligned design documents.
• Collaborate with software developers, systems engineers, validation teams, and other engineering stakeholders.
• Lead technical discussions to gather requirements and develop practical software solutions.
• Analyze engine-test data and support software-related troubleshooting.
• Review HIL and SIL validation results and work with validation engineers to resolve issues.

Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Mechatronics Engineering, or a related discipline.
• Two to four years of full-time industrial embedded software development experience.
• Hands-on experience with MATLAB, Simulink, and Stateflow.
• Experience developing or maintaining embedded control software for production systems.
• Strong understanding of the embedded software development lifecycle.
• Experience creating technical documentation, engineering diagrams, and flowcharts.
• Strong written, verbal, analytical, and cross-functional collaboration skills.

Preferred Qualifications

• Experience in automotive, heavy equipment, aerospace, industrial automation, or embedded systems.
• Knowledge of diesel engine controls or aftertreatment systems.
• Familiarity with Hardware-in-the-Loop and Software-in-the-Loop testing.
• Exposure to Embedded C or C++.
• Experience supporting software validation and interpreting test results.

Work Environment
The position is approximately 90% office-based, with occasional interaction in engine-testing laboratories. Engineers primarily review test results electronically and support software strategy development. Standard personal protective equipment may be required when entering laboratory areas.


Core Skills and Tools

• Embedded software development
• MATLAB, Simulink, and Stateflow
• Engine-control software
• HIL and SIL testing
• Technical documentation
• Software strategy development
• Cross-functional engineering collaboration

Ready to make an impact? Apply now and join us on our journey!