Marine HVAC Technician Intern (TRAINEE)

Company Overview

Green Sails Pte Ltd is a Singapore marine engineering company specializing in repairing, overhauling, installing, and commissioning air-conditioning, refrigeration, ventilation, and chiller systems onboard commercial and offshore vessels locally and overseas.

Job Summary

This hands-on internship trains you to assist senior HVAC engineers in servicing and repairing marine HVAC systems onboard ships, preparing you for a Junior Technician role.

Responsibilities

Assist senior engineers in servicing and repairing marine air-conditioning, refrigeration, and ventilation systems onboard vessels

Service compressors, fan motors, pumps, air handling units (AHUs), and fan coil units (FCUs) under supervision to maintain system performance

Perform leak testing, nitrogen pressure testing, vacuuming, and refrigerant charging to ensure system integrity and compliance

Conduct basic electrical checks including continuity, insulation resistance, voltage, and current measurements to support troubleshooting

Read and interpret wiring diagrams and control schematics to assist in diagnosing and repairing HVAC systems

Prepare tools, parts, and service reports accurately to document job completion and support maintenance records

Follow safe working practices onboard vessels to maintain a safe work environment for self and team

Preferred competencies and qualifications

Nitec, Higher Nitec, or Diploma in Electrical, Mechanical, Mechatronics, Marine, Facility Technology, or Air-Con & Refrigeration, or currently pursuing one

Ability to perform physical tasks such as lifting, climbing, and working in confined spaces safely

Comfortable working onboard ships, including engine rooms, at heights, and in tight spaces

Willingness to work overtime and weekends as required by vessel jobs

Willingness to travel overseas on short assignments (typically a few days to two weeks) to attend vessels in port or anchorage

Possession of a Class 3 driving licence is a plus

Other Information

Internship duration: 6 months, full-time

Location: Singapore office at Kelantan Lane; work onboard vessels at Singapore ports, anchorages, and shipyards

Training allowance: $800 – $1,000 per month

Structured on-the-job training with experienced marine engineers

Opportunity for full-time Junior Technician position upon successful completion

Occasional overseas trips to attend vessels in port or at shipyards — short trips, flying in and out