Maintenance Technician

T.C. KHOO & CO. (PTE) LTDSingaporemycareersfuturepublished 10/08/2026

Job Title: Industrial Maintenance Technician / Engineer We are seeking an experienced Technician or Engineer to maintain, diagnose and repair industrial machinery, particularly machines operating on  415 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 program  Omron 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 with  415 V three-phase machinery and inverter-controlled motors . Hands-on experience in  Omron 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.