Maintenance Technician

TIAN TIAN MANPOWER (PTE.) LTD.; Singapore; On-site; SGD 48,000 - 64,000; Full time

Job summary

TIAN TIAN MANPOWER (PTE.) LTD. is seeking an experienced Industrial Maintenance Technician/Engineer to maintain, diagnose and repair industrial machinery operating on 415 V three-phase power with inverter drives and PLC control systems.

The role involves preventive and corrective maintenance, diagnosing faults in electrical and control systems, and programming Omron PLCs. Candidates should have hands-on experience with VFDs, PLCs, and electrical diagnostics, and hold a related degree or

Qualifications

• Experience in industrial machine maintenance and fault finding.
• Experience with 415 V three-phase machinery and inverter-controlled motors.
• Hands-on Omron PLC programming and troubleshooting.
• Ability to diagnose faults in PLC systems and control circuits.
• Proficiency with electrical diagnostic instruments.
• Ability to work independently and determine root causes of breakdowns.
• Qualification in Electrical, Electronic, Mechatronics or Automation Engineering, or equivalent.

Responsibilities

• Carry out preventive and corrective maintenance on industrial machinery.
• Diagnose and resolve electrical, electronic and control system faults.
• Troubleshoot three-phase motors, inverter drives (VFDs), sensors, relays, contactors and wiring.
• Troubleshoot, modify and program Omron PLCs, checking inputs, outputs, logic and comm faults.
• Identify whether faults originate from PLC hardware, programming or connected components.
• Read electrical schematics, wiring diagrams and manuals.
• Test repaired machinery and document maintenance work and actions.

Skills

Industrial maintenance

Fault finding

Electrical troubleshooting

Omron PLCs

Three-phase motors

PLC programming

Education

Electrical/Mechatronics degree

Tools

Oscilloscope

Multimeter

Electrical diagnostic tools

Job description

Job Title: Industrial Maintenance Technician / Engineer

We are seeking an experienced Technician or Engineer to maintain, diagnose and repair industrial machinery, particularly machines operating on415 V three-phase power, with inverter drives and PLC control systems.

Key Responsibilities

• Carry out preventive and corrective maintenance on industrial machinery.
• Diagnose and resolve electrical, electronic and control system faults.
• Troubleshoot three-phase motors, inverter drives (VFDs), sensors, relays, contactors and associated wiring.
• Troubleshoot, modify and programOmron PLCs, including checking inputs, outputs, program logic and communication faults.
• Identify whether machine faults originate from PLC hardware, programming, control boards or connected components.
• Read and interpret electrical schematics, wiring diagrams and technical manuals.
• Test repaired machinery, confirm safe operation and document maintenance work, faults and corrective actions.
• Follow electrical safety procedures, including isolation and lockout/tagout requirements.

Required Skills and Experience

• Practical experience in industrial machine maintenance, fault finding and troubleshooting.
• Experience working with415 V three-phase machinery and inverter-controlled motors.
• Hands-on experience inOmron PLC programming and troubleshooting.
• Ability to diagnose faults in PLC systems, machine control boards and electrical control circuits.
• Competence in using electrical diagnostic instruments.
• Ability to work independently and systematically identify the root cause of machine breakdowns.
• Relevant qualification in Electrical, Electronic, Mechatronics or Automation Engineering, or equivalent practical experience.

Desirable Skills

• Electronic circuit board diagnosis and component-level repair.
• Ability to use an oscilloscope, identify defective electronic components, and carry out soldering and component replacement.
• Experience with HMIs, industrial communication networks and other PLC brands.