Responsibilities: Perform routine maintenance, inspections, and repairs on heavy equipment, especially for excavators. Replace components such as filters, hydraulic hoses, pumps, and mechanical parts. Assist in diagnosing mechanical, hydraulic, and electrical faults. Carry out scheduled preventive maintenance according to company standards. Ensure accurate reporting of work performed and parts used. Maintain tools, equipment, and work environment in proper condition. Follow safety protocols and ensure compliance with site regulations. Requirements: Technical diploma or vocational training in mechanics, mechatronics, or similar. Hands-on experience with heavy construction equipment is an advantage. Basic understanding of hydraulics, diesel engines, and electrical systems. Responsible, detail-oriented, and willing to learn. French language required; English is a plus. Physical fitness and ability to work in outdoor or on-site environments. Willingness to travel for service visits when needed.