Principal Electrical & Electronic Engineer

T.C. KHOO & CO. (PTE) LTDSingaporemycareersfuturepublished 10/29/2026
Principal

Your tasks

  • 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.

Requirements

Required Skills and Experience

  • Have more than 10 years practical experience in industrial machine maintenance, fault finding and troubleshooting.
  • Very Experience working with 415 V three-phase machinery and inverter-controlled motors.
  • Expert experience in Omron PLC programming and troubleshooting.
  • Ability to diagnose faults in PLC systems, machine control boards and electrical control circuits.
  • Very 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.
  • Have experience in steam generation system as well.

Desirable Skills

  • Expert at electronic circuit board diagnosis and component-level repair.
  • Expert ability to use an oscilloscope, identify defective electronic components, and carry out soldering and component replacement.
  • Familiar with flashing software for erasing, writing or modifying of ROM/ memory chip.
  • Expert experience with HMIs, industrial communication networks and other PLC brands.
  • Have at least more than 10 years experience in the above