土木設計技術者 土木設計技術者
What 土木設計技術者 do
An English description is being prepared. Japanese description:
構造物の設計にあたっては、工事現場の予定地へ出向き、測量やボーリング調査などを行い、地形・地質などの状態を調査する。気象条件や周辺の環境などの自然条件、工事による経済効果や関係法令の規制など社会経済的条件に関する情報を収集し、構造物の基本設計を立案、細部の設計を行う。なお、土木工事の設計・計画の業務ではCADの導入が進んでいる。
設計に基づき、設計図面、特記仕様書など、施工のために必要な書類を作成する。材料費・人件費を積算して工事費の見積りを行い、周辺の道路条件や周辺住民への影響などに配慮しながら工期の設定を行う。
用地の確保、周辺住民への説明や説得、官公庁等関係機関への諸手続などの連絡・調整を行うこともある。
土木工事の規模が大きくなり、分業化が進んでいるため、所属先により多少の違いはあるが、土木設計技術者は調査・計画・設計の仕事を行い、現場での監督・指揮の仕事は土木施工管理技術者が行うのが一般的である。
◇ よく使う道具、機材、情報技術等
設計用ソフト（CADのソフトウェア等）、パソコン
Employment type of workers
土木設計技術者 salary
The average annual pay for 土木設計技術者 in Japan is ¥6.25M (≈ $39,742; Basic Survey on Wage Structure (2025), national). The estimated median is ¥5.81M, the typical range is ¥4.15M–¥10.98M and the top 10% earn about ¥9.40M.
How does your pay compare with people your age?
Your numbers are not sent or stored. The distribution is estimated from Japan's national wage statistics, including pay differences by age.
Pay by ageest.
Estimated from the average pay and average age (46.0) using the age-wage curve of the Basic Survey on Wage Structure.
Pay by experienceest.
Pay by employment typeest.
The average hourly wage of ¥2,993 is 2.5× Japan's national average minimum wage of ¥1,177 (fiscal 2026). Minimum wage by prefecture →
Japanese pay is shown in yen (¥5.57M = 5.57 million yen ≈ 557万円). Dollar figures use the current rate of 157.25 yen per dollar and are for reference only; purchasing power differs.
Pay over time
| Year | Average pay | Employment | Openings ratio |
|---|---|---|---|
| 2021 | ¥5.67M | — | — |
| 2022 | ¥5.73M | — | — |
| 2023 | ¥6.04M | — | 5.57x |
| 2024 | ¥5.97M | — | 5.58x |
| 2025 | ¥6.25M | — | 5.58x |
Projected pay for 土木設計技術者 (3, 5 and 10 years)est.
Today ¥6.25M → in 3 years ¥6.79M → in 5 years ¥7.18M → in 10 years ¥8.24M (10-year range ¥7.09M–¥9.57M). The model assumes pay growth of +2.8% per year.
What drives the annual growth rate
Projected pay = current pay × (1 + annual growth)^years. The annual growth rate starts from a base wage-growth rate and adds or subtracts labor demand (the job-openings-to-applicants ratio), wage momentum and AI replacement risk for each occupation. Projections are not guarantees. How it is calculated →
Outlook score for 土木設計技術者
Each component is a percentile rank among all occupations in the same country (0–100). Weights: labor demand 25, wage momentum / openings 15, pay level 15, AI resistance 25, aging workforce 10 (Japan only), entry barrier 10.
Will AI replace 土木設計技術者? AI replacement risk
How AI is changing this job
A written analysis for this occupation is being prepared.
AI replacement risk compares the parts of a job that are easy to hand to AI or software (processing information, documentation, repetitive computer work) with the parts that are hard to automate (physical work, working closely with people, judgment in unpredictable settings), using the MHLW job tag survey on work activities, work context, skills and knowledge. The result is a relative position among all occupations in the country, scaled to 0–100%. Methodology →
Labor demand for 土木設計技術者
A ratio above 1.0 means there are more job openings than applicants (a labor shortage). The 5- and 10-year figures are estimates from the openings ratio, wage momentum and AI replacement risk.
The same job in the United States
| 土木設計技術者 Japan | Civil Engineers United States | |
|---|---|---|
| Median / average pay | ¥6.25M ≈ $39,742 | $100,840 |
| Pay in 10 years (est.) | ¥8.24M | $130,100 |
| Outlook score | 67 | 56 |
| AI replacement risk | 53% Moderate | 68% High |
| Workers | — | 368K |
Matched by occupation (SOC code). Yen converted at 157.25 JPY/USD for reference; Japanese figures are averages, U.S. figures are medians, and the surveys define occupations differently.
Skills, education and requirements for 土木設計技術者
Key skills
Skill levels from the MHLW job tag worker survey.
Key knowledge areas
What the work involves
Important abilities
Licenses and certifications (Japan)
- 技術士（建設部門）
- １級土木施工管理技士
- ２級土木施工管理技士
- １級土木施工管理技士補
- ２級土木施工管理技士補
Related qualifications listed on job tag (names in Japanese). Some are mandatory, others recommended.
Education of workers
Training before entry
Related work experience
Difficulty of entry: ★★★★★ Hard to enter (from education, training, experience, licenses)
How to become 土木設計技術者
The typical path in Japan is shown by the education, training and experience of current workers above and in the Japanese guidance below. A detailed English guide for this occupation is being prepared.
Guidance from job tag (Japanese)
土木設計技術者として経験を積み、「技術士」（建設部門）や「土木施工管理技士」などの関連資格を取得して、設計コンサルタント業として独立・開業する道もある。
Career path and how to earn more as 土木設計技術者
Career-path guidance is being prepared. Pay by experience is shown in the Pay section.