Why the Cost Is Hard to See
Ask most plant managers what an unfilled engineering role costs and the answer is a shrug. There is no invoice for it. The salary you are not paying stays in the budget unspent, so the vacancy even looks like a small saving. The real cost is spread across scrap, downtime, delayed projects and the people who absorb the work.
The scale of the problem is documented. The Manufacturing Institute and Deloitte reported in April 2024 that as many as 3.8 million additional employees could be needed in manufacturing between 2024 and 2033, and that 1.9 million of those jobs could remain unfilled if the skills and applicant gaps are not addressed.
These are workforce-wide numbers for manufacturing, not engineering-specific and not a dollar cost per vacancy. They show how common the problem is. They do not tell you what your own empty seat is costing. That number has to come from your plant.
Four Costs Nobody Charges to the Vacancy
Whatever the industry, an empty engineering seat tends to leak cost in the same four places.
Corrective actions wait
Root cause work is the first thing to slip when nobody owns it. Problems that would have been closed in a week get contained and left open.
Improvement work stops
The remaining engineers stop improving the process and start keeping it running. Nothing breaks visibly, but nothing gets better either.
Customer and audit exposure grows
Open complaints, overdue reports and thin documentation are tolerable until a customer or an auditor asks for them.
The team absorbing the work wears down
Extra scope lands on the same few people. That is how one vacancy turns into a second one.
How the Gap Looks by Industry
The same vacancy interrupts different work depending on what your plant makes. We do not publish a dollar figure by industry, because we have not found a reliable source that breaks the cost down that way. What we can do is show where the cost usually lands, so you know what to measure first.
| Industry | What the vacancy tends to interrupt | What to price first |
|---|---|---|
| Plastics and injection molding | Process tuning, mold changeovers and scrap reduction | Scrap and rework hours while the process runs without an owner |
| Automotive Tier 1 | Corrective actions, customer complaints and IATF 16949 audit readiness | Open customer escalations and overdue corrective action reports |
| Food and beverage | Line reliability, sanitation changeovers and food safety documentation | Unplanned downtime hours and deferred preventive maintenance |
| Metals | Yield, furnace and process stability, metallurgical troubleshooting | Yield loss and rework on the lines that depend on that judgment |
| Electronics | Test and process engineering, yield analysis, line changeovers | Yield excursions and the backlog of unresolved failure analyses |
| Heavy manufacturing | Capital projects, maintenance planning and equipment upgrades | Project start dates that have slipped since the seat opened |
Your plant will not match any row exactly. Use the table to start the conversation with your operations and finance leads, not to end it.
How to Put a Number on It for Your Plant
You can build a defensible estimate in an afternoon. It will not be precise, but it will be yours, and it is far more persuasive internally than an industry average.
Name the output the seat protects
Write down the lines, products, customers or projects that depend on this engineer. Be specific.
Count the hours others absorb
Ask the people covering the work how many hours a week it takes, and what they are not doing as a result.
Price the exposure you can name
Use your own records: scrap, rework, unplanned downtime, overtime, slipped project dates and open customer escalations.
Compare it to your real hiring timeline
Count every stage of your own process, from approval to the first day. For a cross-border hire, add consulate scheduling, which is typically about 3 to 4 months of the overall process.
Where Cross-Border Hiring Fits, and Where It Does Not
Hiring a Mexican engineer on a TN visa is a sound way to reach qualified candidates for roles that are hard to fill locally. It is not a quick fix. TN is a consular process, and the main delay is consulate availability, so the earlier the role is defined, the better.
Two things decide whether a role is viable. First, the job description must name an engineering discipline. A description that says only a bachelor's degree or higher, or one whose duties read as supervision or inspection rather than engineering judgement, is a common reason otherwise good files run into trouble. Since June 2025, engineer TN applicants must hold a degree in a recognized engineering discipline, and computer science and software degrees no longer qualify. Second, the work must not involve ITAR or defense contracts, which are hard blockers. Commercial aerospace with no defense work remains viable.
Which category a role fits, and whether a filing succeeds, is decided by the immigration attorney involved, not by us. Many employers use their own counsel, and we ask to review the job description and offer letter before anything is filed.
A Short Checklist Before You Open the Next Requisition
The work the seat protects is written down, with names and dates.
You know how many hours a week others are absorbing.
The job description names a specific engineering discipline.
The duties describe engineering judgement, not only supervision or inspection.
You have decided whether your own counsel or an outside attorney will handle the visa filing.
If the first two boxes are hard to tick, that is useful information on its own. It means the cost is real but unmeasured, and measuring it is the first piece of work.
This article is informational only. ACE & Bridgewell is not an immigration law firm and does not provide legal advice. TN visa requirements can change and individual circumstances vary. Always work with a qualified immigration attorney for guidance specific to your situation.
