Heavy Duty Maintenance Officer at Jamub Group

Job Summary

• The Heavy Duty Maintenance Officer will be responsible for the planned preventive maintenance (PPM), breakdown repair, and overall mechanical/electrical upkeep of the company's fleet of heavy equipment and plant machinery.
• The ideal candidate is a trade-qualified mechanic or technician with hands-on experience maintaining excavators, bulldozers, cranes, tipper trucks, concrete batching plants, and other heavy construction equipment.

Key Responsibilities
Preventive Maintenance Programme:

• Execute and document planned preventive maintenance (PPM) schedules for all heavy equipment including excavators, bulldozers, graders, cranes, compactors, dump trucks, and concrete mixers.
• Ensure PPM is carried out at the correct intervals to maximise uptime and equipment lifespan.

Breakdown Diagnosis & Repair;

• Rapidly diagnose mechanical, hydraulic, electrical, and pneumatic faults on heavy equipment.
• Carry out effective repairs to restore equipment to operational status with minimum downtime.

Hydraulic Systems Maintenance:

• Inspect, service, and repair hydraulic systems including pumps, cylinders, hoses, and control valves. Identify hydraulic leaks and carry out sealing and component replacement as required.

Electrical & Electronic Systems:

• Diagnose and repair electrical faults in vehicle and plant wiring systems. Carry out battery maintenance, starter and alternator testing, sensor checks, and basic ECU/diagnostic scanning.

Parts & Inventory Management;

• Identify and requisition spare parts and consumables. Maintain an accurate stock record of critical spares. Liaise with the procurement team to ensure timely sourcing of genuine or approved replacement parts.

Equipment Inspection & Condition Reporting:

• Conduct pre- and post-operation inspections on all assigned equipment. Prepare detailed condition reports and maintenance logs using prescribed formats.

Welding & Fabrication (Basic);

• Carry out basic welding, cutting, and fabrication tasks for structural repairs to vehicle bodies, buckets, frames, and mountings.

HSE Compliance

• Comply with all health, safety, and environmental policies on all sites and in workshops.
• Use appropriate PPE at all times and ensure maintenance activities do not create hazards for other workers.

Workshop Supervision Support:

• Support the Plant Manager in supervising junior technicians and assistants.
• Ensure proper use of workshop tools, equipment, and documentation.

Requirements
Education:

• Minimum of Trade Test Certificate / City & Guilds / OND in Mechanical Engineering, Plant Maintenance, Automobile Engineering, or a related technical discipline.

Experience

• Minimum of 6 years of hands-on experience maintaining and repairing heavy construction equipment and commercial vehicles in a construction, quarrying, or industrial environment.

Technical Skills:

• Competency in mechanical, hydraulic, and basic electrical systems. Ability to read and interpret engineering drawings, OEM service manuals, and parts catalogues. Experience with diagnostic tools (e.g., CAT ET, Komatsu INSITE, or equivalent) is an advantage.

Core Competencies & Personal Attributes:

• Expert-level hands-on skills in mechanical and hydraulic systems for heavy construction equipment.
• Strong fault-diagnosis ability systematic, logical, and able to resolve complex breakdowns efficiently.
• Excellent understanding of PPM principles and the importance of maintenance records and documentation.
• Physically fit and able to work in challenging field conditions, including outdoor environments, confined spaces, and at height.
• Safety-first mindset committed to HSE compliance and safe working practices at all times.
• Reliable, punctual, and hardworking with a proactive attitude to equipment care and problem prevention.
• Good communication skills able to write clear maintenance reports and communicate faults effectively to supervisors and procurement staff.

What we offer

• Competitive salary commensurate with experience and qualifications.
• Opportunity to work within a diversified, fast-growing Nigerian conglomerate.
• Professional development support the company encourages and supports continuing professional development (CPD) and advanced certifications.
• A structured, performance-driven work environment with clear career progression pathways.
• Direct exposure to executive leadership and involvement in strategic decisions.