Job#: 3021604
Job Description:
We are seeking a Diesel Calibration Engineer to support diesel engine aftertreatment development with a strong focus on DPF aftertreatment systems, engine dynamometer emissions testing, and regulatory certification activities. This role is hands-on and lab-focused, supporting lean, regeneration (regen), and OBD emissions processes, with daily responsibility for dyno testing, data collection, and analysis.
This position does not require full calibrator ownership, and is well-suited for a technologist, engineer, or technician-level professional with strong diesel development experience and familiarity with calibration and data acquisition tools.
Key ResponsibilitiesAftertreatment & Calibration Support
- Support Diesel Particulate Filter (DPF) aftertreatment systems, including installation, testing, removal, and troubleshooting
- Execute aftertreatment calibration updates and monitor system response
- Track and document calibration changes, test results, and configuration updates
- Support diesel engine and aftertreatment calibration, test methods, and validation activities
Emissions & Dyno Testing
- Perform engine dynamometer certification emissions testing for:
- Lean operation
- Regeneration (active and passive)
- On-Board Diagnostics (OBD)
- Maintain daily responsibility for engine dyno operation, test execution, and data quality
- Support EPA 10–65 certification protocols, including familiarity with key test cycles
- Assist with emissions certification readiness and documentation
Data Collection & Analysis
- Collect, analyze, and share dyno and emissions data across engineering teams
- Utilize ETAS calibration and data acquisition tools for:
- Dyno data collection
- Calibration tracking
- Data sharing and reporting
- Ensure data integrity and traceability for certification and development activities
Cross-Functional Support
- Act as a technical “floater”, supporting multiple programs or test activities as priorities shift
- Collaborate with calibration engineers, emissions teams, and regulatory compliance groups
- Support troubleshooting and root-cause analysis for aftertreatment or emissions issues
Required Qualifications
- Experience with diesel engine development, testing, or aftertreatment systems
- Hands-on experience with engine dynamometer testing
- Familiarity with DPF aftertreatment systems and diesel emissions processes
- Knowledge of lean, regen, and OBD emissions strategies
- Experience using ETAS tools (INCA, MDA, or similar) for calibration and data collection
- Understanding of EPA 10–65 emissions certification protocols and key drive cycles
- Strong attention to detail and documentation skills
Preferred Qualifications
- Bachelor’s degree in Mechanical Engineering, Automotive Engineering, or related field (or equivalent hands-on experience)
- Prior experience supporting emissions certification testing
- Background in diesel aftertreatment calibration or validation
- Experience working in a regulated emissions or certification environment
EEO Employer
Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.
