Third officer on a ship: duties, the first officer's certificate and the first contract
Deck

Third officer on a ship: duties, the first officer's certificate and the first contract

10 October 2026

The third officer is the first officer's rank a deck cadet reaches — the moment you stand a bridge watch on your own. It is also the rank with the hardest first step: every company wants a third officer with experience, and nobody has it at the start.

What the third officer does

  • Watchkeeping. Usually keeps the 08:00–12:00 and 20:00–24:00 watches, often the one the master is most likely to visit.
  • Safety equipment. Usually in charge of the life-saving and fire-fighting equipment: lifeboats and rafts, lifejackets and immersion suits, fire extinguishers, breathing apparatus, the monthly and weekly checks and their records.
  • Assisting the master. On many ships helps with port papers, crew lists and arrival documents, and keeps the flags and signals.
  • Moorings and cargo. Usually forward at mooring with the bosun, and keeps cargo watches in port.

What it takes

The certificate is officer in charge of a navigational watch under STCW Regulation II/1, for ships of 500 GT or more:

  • at least 18 years old;
  • at least 12 months of approved sea service as part of an approved training programme with a training record book — or 36 months without one;
  • of that, at least six months of bridge watchkeeping under the supervision of the master or a qualified officer;
  • the GMDSS operator certificate, the basic safety courses, Advanced Fire Fighting, Medical First Aid and survival craft (PSCRB);
  • the exams of your maritime administration.

Companies almost always add ECDIS (and a type-specific course for their equipment) and ERM/BRM.

The first contract

The certificate is the easy part. The hard part is the first company. What works:

  1. Stay with the company you were a cadet with. It is the most common way — they already know you.
  2. Accept the vessel type that is hiring — bulk carriers and general cargo take juniors more often than tankers and gas carriers.
  3. Show the cadet time in detail in your CV: vessel types, months, what you did on the bridge.
  4. Apply widely and keep your documents valid — a missing course is the most common reason for a fast "no".

Pay and the path

Third officer is the entry level for officers; the step to second officer usually comes after one or two contracts. The current range from real vacancies is on the third officer jobs page, and a comparison by rank on our salaries page.

Your CV

For a junior officer, the maritime CV matters more than for anyone: it shows the cadet sea service, the courses and their dates on one page, the way crewing managers read them.

Requirements follow STCW; your flag state may add its own. Check them with your maritime administration.

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