Operations and Maintenance Engineer (CNG Sector)

Ascentech Services Limited is a full-fledged Human Resource Solution Provider incorporated in 2013 with its Head Office in Lagos, Nigeria. We are committed to forging long-term partnerships with our clients by creating and delivering robust and flexible services that address the changing needs of their business.

We are recruiting to fill the position below:

Job Title: Operations and Maintenance Engineer (CNG Sector)

Location: Arepo, Ogun

Employment Type: Full-time

Job Summary

• We are seeking an experienced Operation & Maintenance Engineer to oversee the safe, reliable, and efficient operation and maintenance of electric motor or gas engine-driven CNG compressor packages and associated equipment.
• The ideal candidate should have strong hands-on experience in CNG compressor operations, preventive maintenance, troubleshooting, safety compliance, and equipment reliability.

Responsibilities

• Operate and maintain CNG compressor packages to ensure maximum uptime and minimum downtime.
• Monitor compressor operating parameters, including pressure, temperature, oil levels, vibration, and running hours.
• Carry out routine inspections, start-up and shutdown procedures, and emergency response activities.
• Perform preventive and corrective maintenance on compressors, gas engines, motors, valves, piping, cooling and lubrication systems.
• Troubleshoot and resolve mechanical, electrical, instrumentation, PLC, alarm, and control-system faults.
• Carry out leak detection, pressure checks, equipment isolation, depressurization, and safe restoration after maintenance.
• Inspect and maintain gas detectors, flame detectors, emergency shutdown systems, safety valves, gauges, and other safety equipment.
• Replace filters, seals, gaskets, hoses, spark plugs, lubricants, and other consumable/wear components as required.
• Maintain accurate operating logs, maintenance records, service history, and breakdown reports.
• Monitor maintenance schedules, running-hour service intervals, spare parts, lubricants, and other maintenance requirements.

Requirements

• Diploma or Bachelor's Degree in Mechanical, Electrical, Instrumentation, Automobile Engineering, or a related field.
• 5–8 years of relevant experience in CNG compressor operation and maintenance, gas compression, oil & gas, CGD, industrial gas, or a related environment.
• Minimum 3 years of hands-on experience with reciprocating compressor maintenance and breakdown troubleshooting.
• Strong knowledge of compressor operation, gas engines, multistage compression, lubrication, cooling, and pressure systems.
• Experience with PLC/HMI-based control systems and basic electrical/instrumentation troubleshooting.
• Strong commitment to safety and adherence to PTW, LOTO, and CNG safety procedures.
• OEM experience with CP, Atlas Copco, KPCL, TCPL, or equivalent compressor packages is an added advantage.
• Relevant OEM, CNG safety, fire & gas, LOTO, first aid, vibration, or reliability maintenance certification is an added advantage.

Salary

N350,000 - N700,000 per month.

Application Closing Date

6th October, 2026.