Big O Automotive Technicians diagnose, recommend and perform automotive repairs in an accurate and timely manner in accordance with all company programs, policies, and procedures. Big O Automotive Technicians are titled based on ASE or equivalent certification: Automotive Technician A – 4 or More ASE Certifications, Automotive Technician B – 1-3 ASE Certifications, Automotive Technician C – No ASE Certifications. MFA Petroleum Company is an Equal Opportunity/Drug-Free Employer.