Mechanic - Heavy Equipment

Enviri Corporation; Schamal al-Batina; On-site; OMR 9,000 - 13,000; Full time

Job summary

Harsco Environmental is seeking a seasoned Heavy Equipment Diesel Mechanic for its operations in Oman. You will inspect, diagnose, repair, and overhaul heavy machinery, ensuring reliability, safety, and efficiency in a demanding industrial environment.

With a minimum of six years of hands-on experience on CAT, Doosan, and Komatsu equipment, you will perform preventive maintenance, troubleshooting, and major overhauls using computerized diagnostics and precision tools.

Qualifications

• Minimum 6 years of hands-on maintenance, troubleshooting, repair and overhaul experience on heavy equipment.
• Mandatory experience on CAT, Doosan, and Komatsu.
• Strong practical knowledge of diesel engines, hydraulic, transmissions, drivetrains, pneumatic systems, and diagnostics.
• Proven experience in preventive, corrective and breakdown maintenance and major overhauls.
• Experience using computerized diagnostic and testing equipment.
• KAMAG experience is highly preferred and advantageous.
• Knowledge of OEM maintenance standards, service procedures and safety requirements for CAT/Doosan/Komatsu.

Responsibilities

• Test and inspect mechanical equipment after repair to ensure proper operation and compliance with specs.
• Diagnose faults using diagnostic tools and calibration devices.
• Repair or replace defective mechanical, hydraulic, pneumatic, and electrical components.
• Operate and inspect heavy equipment to identify defects and determine repair needs.
• Dismantle, repair, overhaul, and reassemble heavy equipment with proper tools and equipment.
• Perform routine preventive maintenance and document maintenance records.
• Interpret technical manuals, drawings and operating instructions.
• Coordinate preventive maintenance schedules with supervisor.
• Support continuous improvement to enhance reliability and availability.
• Perform other duties as assigned by management.

Skills

Strong mechanical aptitude

Troubleshooting & fault finding

Time management

Reading engineering drawings

Verbal & written communication

Independent & team work

Safety & quality focus

Education

High School Diploma or equivalent

Diploma/Technical Certificate in Heavy Equipment Diesel Mechanics or related trade

Tools

CAT (Caterpillar)

Doosan

Komatsu

KAMAG (preferred)

Diagnostic testing equipment

Job description

HarscoEnvironmental is the premier provider of material processing and environmental services to the global steel and metals industries. Our onsite mill services and resource recovery services offer sustainable solutions that maximize environmental benefit and return valuable raw material into production. We also have developed a range of by-products for specialized applications across industry, construction and agriculture, which utilize Harsco’s expertise in mineral materials.

Job Description

Primary Purpose of the Job

To inspect, diagnose, maintain, repair, and overhaul heavy mobile equipment and machinery, including mechanical, hydraulic, pneumatic, and diesel-powered systems, ensuring equipment reliability, safety, and operational efficiency while minimizing equipment downtime.

Safety Responsibilities

• Comply with all HARSCO safety policies, procedures, and regulations always.
• Immediately report all accidents, incidents, hazards, and near misses, regardless of severity.
• Maintain a safe, clean, and organized work environment inside and outside the workshop.
• Follow OEM (Original Equipment Manufacturer) safety guidelines and maintenance procedures.
• Ensure proper disposal of waste materials, including used oil, tires, batteries, and other consumables, in accordance with HMSA standards.
• Promote a strong safety culture by leading through example and encouraging safe work practices.

Key Responsibilities

• Test and inspect mechanical equipment following repair or assembly to ensure proper operation and compliance with manufacturer specifications.
• Diagnose equipment faults and malfunctions using diagnostic tools, computerized testing equipment, and calibration devices.
• Repair or replace defective, damaged, or worn mechanical, hydraulic, pneumatic, and electrical components.
• Operate and inspect heavy equipment and machinery to identify operational defects and determine repair requirements.
• Dismantle, repair, overhaul, and reassemble heavy equipment using appropriate hand tools, lifting equipment, hoists, jacks, and workshop machinery.
• Perform routine preventive maintenance activities, including cleaning, lubrication, adjustments, servicing, and inspections of equipment and vehicles.
• Inspect components for wear, damage, and serviceability using precision measuring instruments such as micrometers, gauges, and other testing devices.
• Schedule and execute planned maintenance activities and accurately complete equipment service records, maintenance reports, and inspection documents.
• Read, interpret, and apply technical manuals, engineering drawings, schematics, and operating instructions.
• Conduct equipment overhauls, testing, and commissioning to ensure optimal performance and operating efficiency.
• Install, remove, and fit bearings, seals, and other components during maintenance and overhaul activities.
• Clean and prepare parts using approved cleaning solvents, degreasers, and workshop equipment.
• Repair and maintain major assemblies and subassemblies, including engines, transmissions, axles, hydraulic systems, and drivetrain components.
• Coordinate with the Maintenance Supervisor regarding preventive maintenance schedules and repair priorities.
• Ensure the correct repair methods, procedures, tools, and equipment are used for all maintenance activities.
• Maintain high standards of workshop housekeeping and ensure all housekeeping practices comply with Harsco standards.
• Follow OEM guidelines and best maintenance practices to maximize equipment reliability and availability.
• Assist during breakdown situations and respond effectively to emergency repair requirements.
• Support continuous improvement initiatives aimed at enhancing equipment reliability, availability, and maintenance efficiency.
• Perform any other duties related to the role as assigned by management.

Working Relationships

Internal Contacts

Regular interaction with:

• Maintenance Supervisor
• Maintenance Planner
• Operations Personnel
• Safety personal

Physical Demands

This position is hands-on and requires the employee to be physically fit and capable of working in demanding industrial environments. The role involves:

• Standing, bending, lifting, climbing, and manual handling of heavy components.
• Working in confined spaces and outdoor environments.
• Operating lifting devices, hand tools, and workshop equipment.
• Working under varying environmental and weather conditions.
• Maintaining both physical and mental fitness to perform maintenance tasks safely and effectively.

Skills and Competencies

• Strong mechanical aptitude and technical knowledge of heavy equipment.
• Excellent troubleshooting and fault-finding skills.
• Good organizational and time management skills.
• Ability to read and interpret technical documentation and engineering drawings.
• Effective verbal and written communication skills.
• Ability to work independently with minimal supervision and as part of a team.
• Strong commitment to workplace safety and quality standards.

Language Requirements

• Good spoken English.

Experience

• Minimum 6 years of hands-on experience in the maintenance, troubleshooting, repair, and overhaul of heavy construction, industrial, or mobile equipment.
• Mandatory experience working on CAT (Caterpillar), Doosan, and Komatsu equipment.
• Strong practical experience in diesel engines, hydraulic systems, transmissions, drivetrain components, pneumatic systems, and heavy equipment diagnostics.
• Proven experience in preventive maintenance, corrective maintenance, breakdown maintenance, and major equipment overhauls.
• Experience using computerized diagnostic and testing equipment.
• Experience working on KAMAG equipment is highly preferred and will be considered a significant advantage.
• Knowledge of OEM maintenance standards, service procedures, and safety requirements for CAT, Doosan, and Komatsu equipment.

Preferred Equipment Experience

• Caterpillar (CAT), Doosan, Komatsu, KAMAG (Preferred)
• Other heavy construction, material handling, and industrial equipment

Qualifications

• High School Diploma or equivalent.
• Diploma or Technical Certificate in Heavy Equipment Diesel Mechanics, Mechanical Engineering, or a related trade discipline.
• Relevant trade certifications and manufacturer training will be an added advantage.

Additional Information

• Ability to work in a 24-hour operational environment.
• Flexibility to work overtime, extended shifts, weekends, and public holidays when required.
• Willingness to provide night shift coverage and emergency breakdown support as operational needs dictate.
• Ability to respond effectively to urgent maintenance requirements and equipment breakdowns.

Valid driving license for mobile equipment operation will be an advantage.