How to become a Non-Ferrous Metal Smelting Engineer
Also called: Rolling development engineer, Metal smelting development engineer, Alloy development engineer, Forging development engineer, Casting development engineer, Foundry development engineer, Electrorefining development engineer, Converter operator (steelmaking)
Develops and improves methods for refining non-ferrous metals, and manages production as the supervisor of shop-floor workers.
Main tasks
- Developing and improving refining methods
- Collecting and analysing data
- Writing reports based on test data
- Researching patents and published papers on refining methods
- Managing quality
- Managing the production process
- Reviewing equipment
- Supervising, managing and guiding the production floor
- Helping to train and develop staff
- Preparing documents and data for investment plans for equipment and staff
- Preparing profit and loss statements and other documents
- Managing stock of products and materials (stocktaking)
- Inspecting and maintaining machines
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
No particular qualification is required to start, but most people have a university or postgraduate degree, often in metallurgy, materials engineering, chemistry or chemical engineering. Some are high school graduates. There is also mid-career recruitment, but because the work is highly specialised, many mid-career hires have experience in factory operations management or technical development. Mid-career hires are usually placed in research and development, analysis or production engineering, where they can use their expertise. For the first 2 to 3 years, you build specialist skills and business skills through on-the-job and off-the-job training. On the job, you are given your own tasks and learn how a company makes things, guided by senior staff. Off the job, you follow a training programme to learn business skills such as presentation and logical thinking, solve real problems at a practical level, and complete set training. After that, many people move from shop-floor foreman to supervisor and then into management roles such as department manager or plant manager. There is also training for each level, where you may learn team management, compliance and management skills. For certain roles, such as factory manager, licences and qualifications such as pollution control manager or certified energy manager are required. As well as specialist knowledge, you need a high level of knowledge and expertise in quality control, health and safety, care for the environment, process control, and managing and supervising the shop floor.
Ways in
- University: Engineering degrees, Offered by 95 universities in Japan
- National licence or qualification: Listed by job tag as a qualification related to this job (関連資格): 公害防止管理者. English name and classification by Peernovo.
- National licence or qualification: Listed by job tag as a qualification related to this job (関連資格): エネルギー管理士. English name and classification by Peernovo.
Pay · Job openings · AI and this job
- Average annual income: ¥6,069,300 Private sector only: employers with 10 or more staff. Public servants, such as public school teachers and police officers, are not in these figures.
- Monthly base pay (before overtime and bonus): median ¥340,200, and the middle half earn ¥282,500 to ¥390,800 a month.
- 0.74 job openings per applicant at Hello Work (2025). A current demand signal, not a projection. It counts only the jobs and job seekers registered at Hello Work, Japan's public employment offices, and many graduate and professional hires never pass through it.
- Generative AI can do relatively little of this work, by the ILO's global estimate.
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Questions people ask
How do I become a Non-Ferrous Metal Smelting Engineer?
No particular qualification is required to start, but most people have a university or postgraduate degree, often in metallurgy, materials engineering, chemistry or chemical engineering. Some are high school graduates. There is also mid-career recruitment, but because the work is highly specialised, many mid-career hires have experience in factory operations management or technical development. Mid-career hires are usually placed in research and development, analysis or production engineering, where they can use their expertise. For the first 2 to 3 years, you build specialist skills and business skills through on-the-job and off-the-job training. On the job, you are given your own tasks and learn how a company makes things, guided by senior staff. Off the job, you follow a training programme to learn business skills such as presentation and logical thinking, solve real problems at a practical level, and complete set training. After that, many people move from shop-floor foreman to supervisor and then into management roles such as department manager or plant manager. There is also training for each level, where you may learn team management, compliance and management skills. For certain roles, such as factory manager, licences and qualifications such as pollution control manager or certified energy manager are required. As well as specialist knowledge, you need a high level of knowledge and expertise in quality control, health and safety, care for the environment, process control, and managing and supervising the shop floor.
How much does a Non-Ferrous Metal Smelting Engineer earn in Japan?
Average annual income in the private sector, bonus included, is ¥6,069,300 (Ministry of Health, Labour and Welfare).
Do you need a degree to become a Non-Ferrous Metal Smelting Engineer?
Usually. In this job's census occupation group, 67% of workers are university graduates.
Will AI change the work of a Non-Ferrous Metal Smelting Engineer?
Generative AI can do relatively little of this work, by the ILO's global estimate.
Sources
- Ministry of Health, Labour and Welfare: Basic Survey on Wage Structure (賃金構造基本統計調査) 2025: earnings by occupation (2025 survey (June 2025 pay, 2024 bonus), published 2026-03-24), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- Ministry of Health, Labour and Welfare: Employment Referrals for General Workers (一般職業紹介状況): Hello Work job-openings-to-applicants ratio by occupation (2025 annual (release of 2026-10-02)), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- Statistics Bureau of Japan (MIC): 2020 Population Census (令和2年国勢調査) detailed sample tabulation: employed by occupation, sex, age and education (2020 Census (tables 9-1 and 15-1, published 2022-12-27)), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- JILPT (職業情報データベース) via MHLW job tag: job tag download data: 解説系 (descriptions, how to become, related qualifications) and 簡易版数値系 (interests, tasks, education) (解説系 ver.7.01 (2026-06-04); 簡易版数値系 ver.7.00 (2026-03-17)), retrieved 4 October 2026
- International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026
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
