Will AI replace engine and other machine assemblers?

Not on current evidence. Less than 30 minutes of a typical shift goes to tasks that AI or robots are doing today. The other 8h (100%) stays with people. Separately, BLS expects about 17% fewer of these jobs by 2035 (all jobs: +3.5%).

None of this job's tasks show regular AI use yet. That can mean the work is hands-on or in person, or simply that it rarely comes up in AI usage data.

Not in workplaces like this one, based on a 2026 review of robot deployments. 10 more tasks have only been done in factory setups built around the machine, so they stay with people here. For 1 physical task, no robot has shown it can do the work yet.

8h of a typical shift, or 100%, goes to tasks with no AI or robot evidence yet. No AI usage or robot deployment has shown up for these so far. The biggest:

• Position or align components for assembly, manually or using hoists. (1h 35m a shift)
• Fasten or install piping, fixtures, or wiring and electrical components to form assemblies or subassemblies, using hand tools, rivet guns, or welding equipment. (1h 23m a shift)
• Inspect, operate, and test completed products to verify functioning, machine capabilities, or conformance to customer specifications. (53m a shift)
• Rework, repair, or replace damaged parts or assemblies. (41m a shift)
• Read and interpret assembly blueprints or specifications manuals, and plan assembly or building operations. (36m a shift)

Much of it comes down to where and how the work happens. In-person, hands-on and high-stakes work is where AI and robots have made the least headway so far. In the official O*NET survey of people in this job:

• 93% use their hands on tools, objects or controls more than half the time
• 86% spend more than half the day on their feet
• 67% carry high or very high responsibility for other workers' safety

On Indeed, job postings in the Production & Manufacturing sector are at 124% of their February 2020 level (all U.S. postings: 104%), up 12.6% from a year earlier, as of Oct 9, 2026. BLS separately expects about 2,100 openings a year in this job through 2035. Across all U.S. postings, 7.3% now mention AI skills. Sector postings cover more than this one job and move for many reasons besides AI.

The median pay is about $53,710 a year ($25.82 an hour), 5% above the median for all U.S. jobs ($50,980). Most people in this job earn between $38,500 and $77,750 a year; that range covers the middle 80%. Pay figures are from BLS, May 2025, and vary a lot by state and employer. Pick a state to compare:

BLS projects a decline of 17% from 2025 to 2035, compared with 3.5% growth for all jobs. That's about 28,000 jobs in 2035. Even so, it expects about 2,100 openings a year, mostly from people retiring or changing careers. These projections don't single out AI as a cause.

About 34,000 people in the U.S., roughly 0.02% of all workers (BLS, May 2025). That makes it the 454th largest of the 796 jobs on this site. BLS expects about 28,000 in 2035.

The most common requirement is a high school diploma: about 64% of people in the job said so in the official O*NET survey. O*NET rates the job at level 2 of 5 for preparation, which usually means: high school diploma, some training. Requirements vary by state and employer, especially for licensed work.

These come from the job's official skill ratings and from the tasks that AI and robots touch least today. Building them keeps you strong in the parts of the work that still need a person:

• Skills that matter more here than in most jobs: Operations Monitoring, Quality Control Analysis, Reading Comprehension, Monitoring
• Get strong at the parts of the job that stay with people (listed above), which take 8h of a typical shift
• Tools employers list: Dassault Systemes SolidWorks, Microsoft Excel, Microsoft Office software, Microsoft Word, SAP software

These use similar skills. Matches come from 109 official ratings of skills, knowledge and work activities, and each needs the same or less preparation unless the official list relates the jobs directly:

• Woodworking Machine Setters, Operators, and Tenders (12m touched, $43k median pay)
• Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic (2h 12m touched, $44k median pay)
• Molders, Shapers, and Casters (6m touched, $46k median pay)
• Sawing Machine Setters, Operators, and Tenders, Wood (0m touched, $43k median pay)
• Welders, Cutters, Solderers, and Brazers (29m touched, $54k median pay)

Each task carries its own evidence label. For this job: 12 with no AI or robot evidence found. The minutes per task are estimates, not measured hours, and "no evidence" doesn't prove a task is safe.