ABO Certificate for Optical Lab, Industrial Maintenance Certification, OSHA 10 Certification, Supervising, evaluating, diagnosing, mentoring, and developing employees, managing workload; and participating in the hiring and promotion of employees in industrial maintenance (for example, welding, refrigeration, electrical, electronics). 2 years' experience in a Walmart maintenance technician position OR 1 year's experience in industrial maintenance (for example, welding, refrigeration, electrical, electronics), including six months leading a work or project team.