Deck officer
Also known as: ship first officer, chief mate, ship chief officer, first mate, ship deck officer
About this occupation
Deck officers or mates perform the watch duties on board of vessels like determining the course and speed, manoeuvring to avoid hazards, and continuously monitoring the vessels position using charts and navigational aids. They maintain logs and other records tracking the ship's movements. They ensure that the proper procedures and safety practices are followed, check that equipment is in good working order, and oversee the loading and discharging of cargo or passengers. They supervise crew members engaged in maintenance and the primary upkeep of the vessel.
Essential skills and knowledge
- use different communication channels
- handle stressful situations
- maritime transportation technology
- supervise loading of cargo
- supervise unloading of cargo
- international regulations for preventing collisions at sea
- ensure smooth on board operations
- manage personnel
- Global Maritime Distress and Safety System
- International Convention for the Prevention of Pollution from Ships
- ensure vessel security
- celestial navigation
Typical tasks and preparation
From the related US occupation profile Sailors and Marine Oilers (O*NET 53-5011.00). Linked by an official crosswalk: related, not identical; details vary by country.
- Maintain government-issued certifications, as required.
- Handle lines to moor vessels to wharfs, to tie up vessels to other vessels, or to rig towing lines.
- Stand watch in ships' bows or bridge wings to look for obstructions in a ship's path or to locate navigational aids, such as buoys or lighthouses.
- Splice and repair ropes, wire cables, or cordage, using marlinespikes, wire cutters, twine, and hand tools.
- Operate, maintain, or repair ship equipment, such as winches, cranes, derricks, or weapons system.
- Sweep, mop, and wash down decks to remove oil, dirt, and debris, using brooms, mops, brushes, and hoses.
- Preparation
- Job Zone 2 of 5
- Interests
- Realistic, Conventional, Investigative
Top skills: Operations Monitoring, Operation and Control, Monitoring, Equipment Maintenance, Troubleshooting, Repairing
US median pay: US$51,520 a year (2025), 31,670 employed. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics.
Subjects this work relies on
How important each subject's knowledge is in the job itself, rated by people doing it (1 to 5).
- English or Literature in EnglishO*NET: English LanguageImportant (3.2)
- GeographyO*NET: GeographyImportant (3.0)
O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.
Preparation needed
Job Zone 1-2: Very Little to Some Preparation Needed
- Education
- Usually requires a high school diploma or GED, though some occupations may not.
- Experience
- Some occupations may need little or no previous experience; others require several months to a year of experience. For example, landscaping and groundskeeping workers might require very little training or previous experience, while agricultural equipment operators can benefit from on-the job training.
- Training
- Ranges from a few days to one year of on-the-job training.
O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.
Related occupations
Occupations O*NET links to this one by similar work, skills and knowledge.
- Ship Engineers
- Riggers
- Motorboat Operators
- Dredge Operators
- Hoist and Winch Operators
- Railroad Brake, Signal, and Switch Operators and Locomotive Firers
- Tank Car, Truck, and Ship Loaders
- Operating Engineers and Other Construction Equipment Operators
- Crane and Tower Operators
O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.