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(Marine Engineer Officer, Assistant Marine Engineer, Junior Ship Engineer, Maritime Engineer Officer)
Transport & Logistics
Salary
€36,000 - €90,000/yr
Level
Professional
Outlook
Stable
Sector
Transport & Logistics
As a Ship Engineer Officer, you are responsible for the operation, maintenance, and repair of the mechanical and electrical systems that keep a vessel running safely at sea. Your daily work centres on the engine room, where you monitor diesel propulsion plants, manage electrical generation, and carry out routine inspections and lube oil tests. You work closely with the Chief Engineer and senior engineering officers, reporting on system performance and ensuring that all machinery meets maritime safety and environmental regulations, including rules governing the discharge of raw materials into the sea. You may also assist with bunkering operations, prepare the engine room for departure, and help crew members with lifeboat readiness during safety drills. Ship Engineer Officers work aboard Irish ferries, offshore support vessels, and ocean-going cargo ships, often serving rotational contracts at sea.
Listen: a day as a Ship Engineer Officer
Your alarm goes off at 05:45 on a roll-on roll-off ferry running between Dublin Port and Holyhead. You pull on your boiler suit and steel-toe boots and head straight to the engine control room for the 06:00 watch handover. The outgoing officer gives you a verbal rundown: one auxiliary generator has been running warm overnight and the Chief Engineer wants lube oil samples taken before the 07:30 sailing. By 06:20 you are down on the lower engine room plates, two decks below the car deck, checking oil levels, coolant temperatures and bilge alarms on the main diesel propulsion plant. The noise is constant and you wear your PPE ear defenders throughout. You fill in the engine room log by hand, recording temperatures, pressures and rpm readings at each station — this is a legal document under SOLAS, the international maritime safety convention, and every figure must be accurate.
The standard Irish route is through the National Maritime College of Ireland (NMCI) in Ringaskiddy, Cork, which offers programmes leading to Officer of the Watch (Engineering) certification under STCW (Standards of Training, Certification and Watchkeeping) conventions. A relevant Leaving Certificate with passes in Maths, Physics, and ideally Technical Drawing or Engineering is strongly recommended for entry to these programmes. The NMCI offers a Bachelor of Science in Marine Engineering (NFQ Level 8) as well as shorter officer cadet programmes at NFQ Level 7, typically combining academic study with sea-service time aboard vessels. QQI Level 5 or 6 qualifications in engineering or marine technology from a College of Further Education may provide a pathway into preparatory programmes. After completing the required sea service, graduates sit Department of Transport examinations to obtain their Certificate of Competency as a Class 3 or Class 2 Engineer Officer. Ongoing professional development is required to progress through the certificate classes and remain compliant with international maritime regulations.
Most Ship Engineer Officers begin as Junior or Third Engineer Officers aboard Irish or international vessels after completing their NMCI qualification and the required sea service to obtain their Certificate of Competency. With accumulated sea time and examination success, you progress through Second Engineer Officer to Chief Engineer, holding full responsibility for the engineering department. Some experienced engineers move ashore into roles such as marine superintendent, technical fleet manager, or maritime inspector with the Department of Transport. Further qualifications at NFQ Level 9, such as a master's in maritime management or engineering, can open routes into senior shore-based technical or operational management positions.
AI-driven condition monitoring and predictive maintenance systems are increasingly being fitted on modern commercial vessels, automating routine data collection and alerting engineers to developing faults before they become critical. This technology reduces some repetitive monitoring tasks but increases the expectation that Ship Engineer Officers can interpret complex diagnostic data and act on AI-generated recommendations. Autonomous vessel technology is advancing, particularly for short-sea ferry routes, but fully unmanned engine rooms remain a distant prospect for most commercial shipping due to safety regulation and the complexity of at-sea fault response. Overall, AI is likely to change the daily rhythm of the job rather than reduce the need for skilled, certificated marine engineers in the foreseeable future.
→ Ship Engineer Officer (Current role)
Organisations in Ireland that employ people in this occupation.
Dublin Port, Dublin
Operate and maintain propulsion and mechanical systems on passenger ferries
Dublin Port and Rosslare Harbour
Engineer vessel machinery and electrical systems on Irish Sea ro-ro ferries
Naval Base Haulbowline, Cobh, Co. Cork
Maintain and operate engineering systems aboard naval patrol vessels
Rosslare Harbour, Co. Wexford
Support engine room operations on cross-channel ferry services
Oranmore, Co. Galway
Operate and maintain research vessel engineering and propulsion systems
Rosslare Harbour, Co. Wexford
Manage mechanical and electrical plant on Ireland-France ferry routes
Dublin Port, Dublin
Oversee engineering operations of port vessels and dredging craft
Enniskillen, Co. Fermanagh and Nationwide
Maintain mechanical systems on dredgers and waterway maintenance vessels
Cork and Dublin
Support engineering functions on coastal and short-sea cargo vessels
Dublin Port, Dublin
Operate engine room machinery on Irish Sea freight and passenger routes
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