Maintenance Supervisor

Private Advertiser; Marikina; On-site; PHP 500,000 - 900,000; Full time

Job summary

Private Advertiser is seeking an experienced maintenance supervisor to lead diesel truck maintenance and repair operations on-site in Metro Manila. You will oversee preventive maintenance, troubleshooting, emergency response, parts coordination, and ensure safety and quality in all serviced units.

Responsibilities include planning maintenance schedules, supervising technicians, coordinating with dispatch and warehousing, and generating daily reports using Excel or Sheets.

Qualifications

• Graduates in Mechanical Engineering with TESDA automotive qualification.
• Minimum 5 years in diesel truck maintenance and repair.
• Minimum 2 years supervising mechanics and maintenance staff.
• Experience with electronic diesel engines, diagnostic scanners, fault codes, wiring diagrams.
• Experience with preventive maintenance programmes and roadside repairs.
• Proficient in Excel or Google Sheets; able to produce daily reports.

Responsibilities

• Schedule and supervise preventive maintenance based on mileage, hours, and conditions.
• Improve maintenance compliance and reduce breakdowns through planning.
• Verify defects and conduct functional testing before releasing units.
• Investigate backjobs and recurring failures to identify corrective actions.
• Assign work, set priorities, and monitor completion.
• Coach mechanics and evaluate performance.
• Manage parts catalogues, warranty claims, and service-life monitoring.
• Coordinate roadside repairs, recovery, or towing as needed.
• Complete job orders and daily unit-status reports accurately.
• Use Excel or Google Sheets for records and reporting.

Skills

Maintenance planning

Team coaching

Coordination & communication

Problem-solving

Excel/Sheets proficiency

Typing speed

Welding/ safety practices

Education

Mechanical Engineering degree

TESDA automotive servicing qualification

Tools

Diagnostic scanners

Job description

About the role

Lead the maintenance and repair operations for diesel trucks, ensuring safe, reliable, and efficient fleet performance. This on-site role oversees preventive maintenance, troubleshooting, emergency response, technician performance, parts coordination, and the quality release of serviced units.

Key responsibilities

• Schedule and supervise preventive maintenance based on mileage, engine hours, time, and operating conditions.
• Improve preventive maintenance compliance and reduce repeat breakdowns through effective maintenance planning and follow-through.
• Verify defects, assess repair workmanship, and conduct or supervise functional testing before releasing units.
• Investigate backjobs, recurring failures, and repeat repair concerns to identify corrective actions.
• Assign work according to technician skills, set priorities, and monitor completion.
• Coach mechanics and evaluate their performance to support team capability and productivity.
• Identify correct parts, validate parts requests, and distinguish repairable components from those requiring replacement.
• Manage parts catalogues, compatibility checks, warranty claims, and parts service-life monitoring.
• Coordinate roadside repairs and determine whether units require recovery or towing.
• Manage quick response team or emergency maintenance support activities.
• Complete job orders, repair findings, parts requirements, and daily unit-status reports accurately.
• Use Excel or Google Sheets for maintenance records, reporting, and operational tracking.
• Enforce safe practices for lifting, vehicle support, welding, battery handling, and work on pressurised systems.
• Coordinate clearly with dispatch, drivers, warehouse, purchasing, and management.
• Explain technical findings and repair priorities in clear, practical management terms.
• Respond to operational emergencies and work shifts in accordance with the agreed duty arrangements.

What we're looking for

• Graduate of Mechanical Engineering with a relevant TESDA automotive servicing qualification.
• At least 5 years of hands-on experience in diesel truck maintenance and repair.
• At least 2 years of experience supervising mechanics, electricians, welders, or maintenance helpers.
• Familiarity with electronic diesel engines, diagnostic scanners, fault codes, and wiring diagrams.
• Experience handling preventive maintenance programmes, backjobs, recurring failures, roadside repairs, or emergency maintenance support.
• Strong understanding of parts identification, compatibility validation, warranty claims, and component replacement decisions.
• Ability to prepare accurate maintenance documentation and daily operational reports.
• Proficiency in Excel or Google Sheets and a typing speed of at least 30 words per minute.
• Strong coordination, communication, prioritisation, coaching, and problem-solving skills.
• Willingness to work on-site, handle shifts, and respond to operational emergencies.