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Ironworkers, boilermakers

How to become a Shipbuilding Worker

Also called: Shipwright, Shipbuilding steelworker, Hull block assembler, Ship carpenter, Ship interior lining fitter, Ship outfitter, Ship engine room outfitter, Ship accommodation outfitter

Builds ships by cutting and shaping parts from steel and other materials, joining them to make the hull, and fitting the equipment needed for the ship to sail.

Main tasks

Workers in this job say high school or university is common. From job tag's survey of people in each job, who could give several answers. It shows what workers see as common, not how many workers hold each level.

How to become one

Usually no particular education or subject is required. Among new graduates, fairly many have finished shipbuilding or industrial courses at high school, but many come from non-industrial courses too. There are also mid-career hires from shipping, such as seafarers, and from other jobs. New graduates are almost all introduced by their school or Hello Work (public employment service). Mid-career hiring is through Hello Work, job advertisements and so on, and people without experience or qualifications are also hired. Once hired, you build a track record and gain the qualifications needed while being taught on the job by instructors and learning skills on training courses. Many companies have schemes to support and encourage gaining qualifications. The whole industry is also working hard to train shipbuilding workers: for example, the Cooperative Association of Japan Shipbuilders runs skills training centres at 6 locations around the country, offering induction training for new graduates and mid-career hires, and specialist skills training for mid-level workers in welding, line heating (gyotetsu), hull assembly, piping outfitting, electrical outfitting, painting, engine finishing and more. Shipbuilding workers need a range of welding skills. To do arc welding or gas welding you must complete the legally required training courses for arc welding workers and gas welding workers, and for shipbuilding welding there is the welder qualification certified by ClassNK (Nippon Kaiji Kyokai). There are also the gas welding operations chief (you can sit it after 3 years' experience) and special training for grinding wheels. Other qualifications include aluminium welder (certified by an industry body), welding coordination engineer (needed for those responsible for quality control) and welding work instructor (for those who guide welders). As mentioned above, many stages of marking, cutting, shaping and welding are now mechanised, but special three-dimensional shapes such as the curved parts of the bow and stern cannot be mechanised and must be done by hand, so highly skilled, experienced workers play a big role. How to pass on these advanced manual skills (such as line heating) is a major challenge, and research is being done, for example making them visible and measurable by video-recording highly skilled workers and analysing it. In outfitting, installing equipment, interior fitting, electrical work, air conditioning, and water supply, drainage and piping work all need skills similar to building construction. In recent years, however, workers are increasingly trained in several skills, and job types are being merged. It also helps your career to gain qualifications such as crane operator, mobile crane operator, crane and derrick operator, slinging skills training, forklift operation skills training and aerial work platform operation skills training, needed to move finished parts and work at height during building; the marine electrician, chief marine electrician and marine electrical manager qualifications and the marine radar and marine radio equipment maintenance qualifications needed for ship outfitting; and the chief engineer (small ship building) qualification for technical management of small ship building. Basic English or other language skills may also be needed. In addition, all work in both hull construction and outfitting involves standing or working in particular positions, so a certain level of fitness is needed. As for career paths, with experience you become a supervisor in your area, then a team leader guiding staff, then a foreman or crew chief managing a section, and may later become a manager such as team head, safety and health supervisor or factory manager. For example, it is said that it takes at least 5 years to work independently at line heating in the bending process or at welding, and at least 10 years to become team leader of that section guiding others. Building a ship is a project and teamwork is valued. Many people from different departments and jobs work in a shipyard, and it is essential to cooperate and communicate with them and hand over work accurately as each stage progresses. Because people work as a group, coordination and cooperation with others, passing on information and communication skills are important, and it is important to speak up when you need to. To stay in the job for a long time, it helps to be interested in making things, comfortable operating machines and tools, and persistent in your work. Ships are built to order, and the work protects quality and customers' trust, so you need to be responsible and trustworthy. You also handle huge, heavy objects, lift them with cranes and work at height, so you must always put safety first. Companies provide thorough safety training, but you need accurate, careful operation, sound judgement, and the attention and concentration to work safely.

Ways in

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Questions people ask

How do I become a Shipbuilding Worker?

Usually no particular education or subject is required. Among new graduates, fairly many have finished shipbuilding or industrial courses at high school, but many come from non-industrial courses too. There are also mid-career hires from shipping, such as seafarers, and from other jobs. New graduates are almost all introduced by their school or Hello Work (public employment service). Mid-career hiring is through Hello Work, job advertisements and so on, and people without experience or qualifications are also hired. Once hired, you build a track record and gain the qualifications needed while being taught on the job by instructors and learning skills on training courses. Many companies have schemes to support and encourage gaining qualifications. The whole industry is also working hard to train shipbuilding workers: for example, the Cooperative Association of Japan Shipbuilders runs skills training centres at 6 locations around the country, offering induction training for new graduates and mid-career hires, and specialist skills training for mid-level workers in welding, line heating (gyotetsu), hull assembly, piping outfitting, electrical outfitting, painting, engine finishing and more. Shipbuilding workers need a range of welding skills. To do arc welding or gas welding you must complete the legally required training courses for arc welding workers and gas welding workers, and for shipbuilding welding there is the welder qualification certified by ClassNK (Nippon Kaiji Kyokai). There are also the gas welding operations chief (you can sit it after 3 years' experience) and special training for grinding wheels. Other qualifications include aluminium welder (certified by an industry body), welding coordination engineer (needed for those responsible for quality control) and welding work instructor (for those who guide welders). As mentioned above, many stages of marking, cutting, shaping and welding are now mechanised, but special three-dimensional shapes such as the curved parts of the bow and stern cannot be mechanised and must be done by hand, so highly skilled, experienced workers play a big role. How to pass on these advanced manual skills (such as line heating) is a major challenge, and research is being done, for example making them visible and measurable by video-recording highly skilled workers and analysing it. In outfitting, installing equipment, interior fitting, electrical work, air conditioning, and water supply, drainage and piping work all need skills similar to building construction. In recent years, however, workers are increasingly trained in several skills, and job types are being merged. It also helps your career to gain qualifications such as crane operator, mobile crane operator, crane and derrick operator, slinging skills training, forklift operation skills training and aerial work platform operation skills training, needed to move finished parts and work at height during building; the marine electrician, chief marine electrician and marine electrical manager qualifications and the marine radar and marine radio equipment maintenance qualifications needed for ship outfitting; and the chief engineer (small ship building) qualification for technical management of small ship building. Basic English or other language skills may also be needed. In addition, all work in both hull construction and outfitting involves standing or working in particular positions, so a certain level of fitness is needed. As for career paths, with experience you become a supervisor in your area, then a team leader guiding staff, then a foreman or crew chief managing a section, and may later become a manager such as team head, safety and health supervisor or factory manager. For example, it is said that it takes at least 5 years to work independently at line heating in the bending process or at welding, and at least 10 years to become team leader of that section guiding others. Building a ship is a project and teamwork is valued. Many people from different departments and jobs work in a shipyard, and it is essential to cooperate and communicate with them and hand over work accurately as each stage progresses. Because people work as a group, coordination and cooperation with others, passing on information and communication skills are important, and it is important to speak up when you need to. To stay in the job for a long time, it helps to be interested in making things, comfortable operating machines and tools, and persistent in your work. Ships are built to order, and the work protects quality and customers' trust, so you need to be responsible and trustworthy. You also handle huge, heavy objects, lift them with cranes and work at height, so you must always put safety first. Companies provide thorough safety training, but you need accurate, careful operation, sound judgement, and the attention and concentration to work safely.

How much does a Shipbuilding Worker earn in Japan?

Average annual income in the private sector, bonus included, is ¥5,066,400 (Ministry of Health, Labour and Welfare). The figure is for the wage survey group Ironworkers, boilermakers, which covers several jobs.

Do you need a degree to become a Shipbuilding Worker?

Usually not. In this job's census occupation group, only 9% of workers are university graduates.

Will AI change the work of a Shipbuilding Worker?

Generative AI can do relatively little of this work, by the ILO's global estimate.

Sources

独立行政法人労働政策研究・研修機構（JILPT）作成 職業情報データベース 解説系ダウンロードデータ（IPD_DL_description_7_01.xlsx）ver.7.01 職業情報提供サイト（job tag）より2026年10月4日にダウンロード（https://shigoto.mhlw.go.jp/User/download）を加工して作成

独立行政法人労働政策研究・研修機構（JILPT）作成 職業情報データベース 簡易版数値系ダウンロードデータ（IPD_DL_numeric_7_00.xlsx）ver.7.00 職業情報提供サイト（job tag）より2026年10月4日にダウンロード（https://shigoto.mhlw.go.jp/User/download）を加工して作成

Sources: JILPT Occupational Information Database download data via job tag (解説系 ver.7.01 and 簡易版数値系 ver.7.00, downloaded 4 October 2026), processed by Peernovo; MHLW, Basic Survey on Wage Structure 2025; Statistics Bureau of Japan, 2020 Population Census; MEXT, School Basic Survey 2025; MHLW, Employment Referrals for General Workers (Hello Work statistics). Figures processed by Peernovo. English job names, translations and the matching of jobs to statistical groups, schools and degree fields by Peernovo.

Updated 4 October 2026