Boilermaker
Boilermaker work resists automation because the equipment exists in industrial environments that vary enormously and require human judgment to navigate.
In real usage data, AI shows up in this job less often than in most occupations.
Technical detail
Based on Microsoft's "Working with AI" study of real Copilot conversations mapped to O*NET tasks (arXiv 2507.07935): Boilermakers scored 0.041 on AI applicability, notably below the cross-occupation mean (0.159, stdev 0.098) across all 785 SOC codes studied — banded here as Low real-world AI usage relative to other occupations.
What a boilermaker actually does
Boilermakers construct, assemble, maintain, and repair boilers, pressure vessels, tanks, and other large containers that hold liquids and gases under pressure in power plants, refineries, factories, and ships.
The work involves reading blueprints and specifications, using cranes and rigging equipment to position heavy components such as drums, tubes, and headers, fitting and bolting components together, welding seams and joints using processes such as stick, TIG, and flux-core welding to codes set by ASME, testing vessels for leaks and weaknesses using hydrostatic and X-ray inspection, and performing maintenance to extend equipment life.
Boilermakers work on massive industrial equipment, since power plant boilers can be several stories tall, requiring them to work at heights, in confined spaces such as boiler drums and firebox interiors, and with heavy materials. The job demands expertise in multiple welding processes, knowledge of metallurgy and pressure vessel codes, and the ability to interpret complex technical specifications. Many boilermakers work on traveling repair crews, moving between job sites and plant outages as maintenance needs arise.
The physical demands are significant, involving heavy lifting, awkward positions, and exposure to heat and hazardous materials requiring protective equipment. Most boilermakers train through a multi-year union apprenticeship.
Why it reads this way
Boilermaker work resists automation because the equipment exists in industrial environments that vary enormously and require human judgment to navigate. Every boiler installation presents unique challenges—plant layouts differ, access constraints vary, and existing conditions rarely match original specifications after years of operation. Repair work requires assessing damage, determining appropriate repair methods, and executing repairs in positions and locations designed for human access rather than robotic systems.
The welding required for pressure vessels demands constant human judgment—adjusting for material thickness, joint position, environmental conditions, and real-time quality assessment. Boilermakers work on equipment that must contain tremendous pressures; flaws can be catastrophic, requiring human inspection and quality verification that goes beyond automated testing. The physical environment—climbing inside vessels, working in extreme heat, navigating industrial facilities—presents challenges that current robotics cannot handle.
Additionally, power plants and refineries operate on tight maintenance schedules during planned shutdowns; the coordination and problem-solving required during these intense periods requires experienced human teams.
Skills this role draws on
We don't yet have task-by-task time-share data for this occupation, so we can't show which specific tasks carry the exposure score above. This is the real skill set instead.
Typical salary range (USD)
$48,000–$108,000
Average: $80,090/yr
Range source: BLS Occupational Employment Statistics, May 2024
Average source: BLS Occupational Employment and Wage Statistics, May 2025 (Annual Mean Wage)
Head-to-head comparisons
Boilermaker (structuralScore 90, Safe band) clears the robotics check as of August 2026 -- commercial robotic pressure-vessel welding exists but operates inside fabrication shops building new vessels, not on field maintenance/repair of installed boilers during plant outages, which is the bulk of this occupation's work. ASME Section IX ties welder qualification to a specific tested individual, a genuine (if welding-scoped) legal/quality wall. AI-driven data-center power demand is currently a net demand tailwind for this trade, not a threat, per Boilermakers union reporting. Medium confidence reflects that the ASME wall covers only the welding portion of the job, not rigging/fitting/inspection.
This is a researched judgment (checklist v1.2), not a statistical measurement — it sits alongside, not instead of, the structural exposure signal above. Next scheduled review: 2027-02-10.
Sources (7)
- https://www.bls.gov/ooh/construction-and-extraction/boilermakers.htm
- https://www.onetonline.org/link/summary/47-2011.00
- https://www.asme.org/certification-accreditation/boiler-and-pressure-vessel-certification
- https://www.mtm-inc.com/welder-qualifications-and-the-asme-code.html
- https://boilermakers.org/news/headline-news/increased-energy-demand-calls-for-increased-focus-on-growth
- https://fortune.com/2026/05/02/unionized-workers-skilled-trades-alliance-tech-giants-ai-data-centers-construction/
- https://www.osha.gov/confined-spaces-construction/faq
Data sources & methodology
Salary data: BLS Occupational Employment Statistics, May 2024. Min/max figures represent the 10th–90th percentile annual wage range across the United States. Average figure sourced separately: BLS Occupational Employment and Wage Statistics, May 2025 (Annual Mean Wage).
Automation Risk Score: Based on O*NET occupational analysis (47-2011.00) evaluating task complexity, physical requirements, social intelligence, and environmental variability. Methodology based on research from Frey & Osborne (Oxford, 2017).
Growth projections: -2% (2024-2034), based on BLS Occupational Outlook Handbook.