Contract Engineer Bill Rates 2026: Mechanical, Electrical, Manufacturing and Quality

Last updated: October 18, 2026

By Tom Kenaley, Senior Partner and President, KORE1

As of October 2026, a mid-level mechanical, electrical, or manufacturing engineer on a W2 contract bills about $75 to $94 an hour nationally, with a median of $83, or roughly $42,900 for a three-month contract. KORE1’s own contract engineering placements (n=9, 2023 to 2026) billed a median of $86, with the middle half between $74 and $128.

Those numbers come from the KORE1 Contract Rate Index, version 2026-Q4, which we built this month because our clients kept asking us the same question in slightly different words. An operations director with a line retrofit in Ontario, California, wants to know what a controls engineer will cost for 16 weeks. A plant manager in Garland is pricing a quality engineer to clear a corrective action backlog before an audit. Neither one cares what an engineer earns on a salary site. They care what lands on the invoice. Fair enough. Los Angeles IT roles are priced in our Los Angeles IT roles on the contractor rate index.

Robert Ardell on our team put the goal in one line during a planning call on October 16. “Some kind of salary guide, but for contractors.” That is what this page tries to be for contract engineering staffing, the work our engineering staffing practice does every week.

One disclosure before the tables. We bill these rates. I have a reason to want them to look fair, so I’ll show you how they are built and let you check the arithmetic yourself.

How Much Does a Contract Mechanical or Electrical Engineer Cost per Hour in 2026?

A contract engineer bill rate is the all-in hourly price a staffing firm invoices for a W2 engineer’s time. It covers the engineer’s wages, employer payroll taxes, workers’ compensation and liability insurance, mandated sick pay, benefits the firm pays for, weekly payroll, and the recruiting work behind the placement. You pay one number. The firm pays everything inside it. That’s the deal.

Here is the national picture by level. These cells are modeled, which means they start from the U.S. Bureau of Labor Statistics wage for mechanical engineers, add a 24% employer burden, and apply the bill-to-cost range we see on our own placements.

Source: KORE1 Contract Rate Index 2026-Q4, effective October 16, 2026. Ranges are the 25th to 75th percentile of bill rates. Costs assume 40 hours a week. Modeled cells use BLS OEWS May 2025 wages for SOC 17-2141, a 24% burden and KORE1 bill bands.

Why does our observed median ($86) sit a few dollars above the national mid-level model ($83)? Mostly geography. Partly sample size. Nine placements is a small sample, and most of ours are in Southern California, where the same engineer costs more. The spread is the more useful part. Our 75th percentile is $128, which tells you a senior seat in this family can run well past the national senior median of $105 once the work gets specialized.

Want a quote on a specific seat instead of a national band? Ask us for a bill rate quote with the role, level, metro, start date, and length, and we will price it against the index.

What Do Manufacturing and Quality Engineers Bill at Junior, Mid, and Senior Level?

Pretty much the same bands as mechanical, give or take a few dollars. The index groups mechanical, electrical, and manufacturing engineers into one role because their market wages sit close together and because, honestly, the job titles overlap so much that splitting them would create precision we don’t have. The BLS puts the May 2025 median wage for mechanical engineers at $50.05 an hour and for industrial engineers, the family that includes manufacturing engineers, at $49.25. Eighty cents apart. Close enough.

Electrical is different. BLS shows electrical engineers at a median $120,630 a year, or about $58 an hour, which is roughly 16% above mechanical. So when the seat is a true electrical or controls engineer, expect quotes in the upper half of each band, not the middle, and expect the gap to widen once you add PLC programming, arc flash studies, or panel design under UL 508A to the job description. A junior electrical engineer will often price like a junior mechanical engineer with two more years on the resume.

Quality engineers are trickier. Much trickier. There is no separate BLS series for them. We price quality engineers against the same band and then move them up or down for one thing more than anything else, which is how much regulated paperwork the job carries. A quality engineer running PPAP submissions and 8D corrective actions for an automotive tier-two supplier is a different hire from one writing CAPAs and validation protocols under FDA 21 CFR Part 820 at a device maker. The second one costs more. Usually a full level more. Sometimes two.

How Much Do Engineering Rates Change by Metro?

A lot. More than most budgets assume. The same mid-level engineer bills $84 in Dallas-Fort Worth and $124 in the San Francisco Bay Area.

Source: KORE1 Contract Rate Index 2026-Q4, modeled cells (BLS OEWS May 2025, SOC 17-2141, 24% burden, KORE1 bill bands). Orange County and Los Angeles share the Los Angeles-Long Beach-Anaheim MSA. Other metros fill in after the next BLS pull.

Houston surprises people. Its senior median ($127) runs well ahead of Austin’s ($113) and Dallas’s ($105), and the reason is the energy and petrochemical base along the Ship Channel, where mechanical and process-adjacent engineers have been paid a premium for a long time. A senior rotating-equipment engineer in Pasadena, Texas, is not competing with a product designer in Round Rock for the same offer, and the refineries and chemical plants that employ the first one have paid for that scarcity through one oil cycle after another.

Dallas is the opposite story. The Plano, Irving, and Frisco corridor has a deep bench of manufacturing and electrical talent and a cost of living that keeps wages reasonable, so a mid-level contract engineer there prices almost exactly at the national median. If you have the choice of where a contractor sits, that $40 an hour gap between Dallas and the Bay Area is about $20,800 over a three-month program.

Southern California sits in the middle of the pack, which is where most of our placements are. Home turf. Irvine, Anaheim, Carlsbad, and the aerospace and medical device clusters around them keep the mid band near $98.

What Does a 3-Month or 6-Month Program Contract Cost?

Take the median for your level and metro and multiply by about 520 hours for three months, or 1,040 hours for six. That’s the whole formula. Really. The index already did it in the tables, so a mid-level engineer nationally comes to about $42,900 for three months and $85,900 for six.

Overtime changes that fast. Very fast. Most W2 engineering contractors are paid by the hour, and hourly pay generally means overtime applies. That’s time-and-a-half past 40 hours in a week and, in California, past eight hours in a day. A commissioning push where your contractor works 55-hour weeks for a month adds roughly 60 hours at 1.5 times the bill rate. On an $83 rate that’s about $7,500 you didn’t put in the budget. Ask about overtime billing before the start date, not after the first timesheet. Seriously.

And six months matters for a second reason. After 1,040 hours, a KORE1 contractor can convert to your payroll with no conversion fee. Plenty of our clients plan around that number on purpose, scoping a six-month contract so that the conversion decision lands right when they know whether the engineer can carry the program without them hovering over every drawing release.

What Is Inside a Contract Bill Rate?

Devin Hornick, a partner at KORE1, walks clients through it with one example. Take an engineer paid $100 an hour. Add a 24% burden for payroll taxes, required insurance, and mandated benefits, and the loaded cost is $124 an hour before the staffing firm earns anything. “The bill rate on that pay would likely be around $150 to $160,” he told our team. The firm’s gross profit comes out of what’s left after the $124.

So what is in that 24%? Some of it is fixed by law. Some isn’t. IRS Publication 15 sets the 2026 employer share of Social Security at 6.2% on wages up to $184,500 and Medicare at 1.45% with no cap. Then come federal and state unemployment insurance, workers’ compensation for people who walk a plant floor, general and professional liability coverage, and paid sick leave. California requires employers to allow at least 40 hours or five days a year. We also pay 100% of our contractors’ dental and vision, which nobody requires.

Here’s where quotes get slippery. Watch closely.

Some firms quote a markup percentage and leave burden out of the conversation entirely. “Thirty-five percent” sounds like one number, but it can mean two very different invoices. Thirty-five percent on top of the $100 pay rate is $135. Thirty-five percent on top of the $124 loaded cost is about $167. Same engineer, same percentage, a $32 an hour difference, which on a six-month program is over $33,000. Devin’s advice is blunt. Ask whether the percentage sits on pay or on loaded cost, and work with a firm that will show you how it makes its money. We won’t publish our own markup here, because it moves with the pay rate and the seat. We’ll walk you through any quote line by line, though, ours or anyone else’s.

For how the contract model itself works day to day, start with our contract staffing overview. If you are weighing hourly billing against other structures, our guide to staff augmentation pricing models compares them side by side.

What Moves the Rate?

Four things move a contract engineering rate more than the title does.

• PLC and controls work. An electrical engineer who can open a Studio 5000 project, trace a ControlLogix fault, and rewrite ladder logic on a live line bills like a senior even at five years. Siemens TIA Portal on European-built equipment is scarcer still. Our automation engineer salary guide covers the full-time side of that market.
• Design tools. SolidWorks is common, so it barely moves the rate. CATIA V5 for aerospace, Creo for heavy equipment, or NX for a Tier 1 automotive program shrinks the pool to a few dozen local candidates and pushes the price up.
• Regulated industries add a level, most of the time. Medical devices under ISO 13485, aerospace under AS9100, pharma equipment that needs IQ/OQ/PQ protocols. The engineer writes documentation an auditor will read, and that costs more.
• Onsite shifts. Second shift in Fontana, or a startup that needs someone on the floor at 5 a.m. for commissioning. Fewer engineers will take that schedule, and the rate rises to match. Remote design work is the cheapest version of every one of these roles. Usually.

One example from our desk. A medical device client in Irvine needed a mechanical engineer for a design transfer, the handoff from R&D to the production line. The first spec said “mechanical engineer, SolidWorks, 3 to 5 years.” Mid-level money. Then the hiring manager mentioned the engineer would own the process FMEA and sign test method validations. That’s a senior quality-adjacent seat wearing a mid-level title, and the honest quote moved from the middle of the band to the top. Better to find that out on the intake call than in week three. Much better.

How Long Do Engineering Programs Run?

Across every role we place, the median KORE1 contract assignment runs 116 days, based on 1,887 assignments from 2019 to 2026. That’s just under four months. Not long. Engineering programs tend to cluster around the same length because they’re tied to a defined deliverable, a line launch, a design transfer, a validation package, or a backlog of engineering change orders. When a program runs long, it is almost never the engineer’s fault; it is usually a supplier slipping a tooling date, a customer changing a print after first article, or an auditor asking for one more protocol that nobody scoped at kickoff.

Some programs end early because the work is done. Others turn into hires. A few do both. Of the contract-to-hire placements in that same data set, 37.5% converted to permanent roles (n=552). And when a client is ready to move, the median gap between offer and start is three days (n=1,997). Most of that data comes from our Southern California placements, about 79% of the set, so read it as a regional benchmark.

If you think the seat will be permanent but you aren’t sure the person is right, contract-to-hire is usually the cleaner path.

How the Index Is Built

Two kinds of cells. Always labeled. KORE1 observed cells come from our own W2 contract and contract-to-hire placements that started 2023 to 2026, and we publish one only when it has at least five placements. Modeled cells take the BLS OEWS May 2025 hourly wage for the occupation and metro (the 25th percentile for junior, the median for mid, the 75th percentile for senior), add a 24% burden, and apply the bill-to-cost range we observe on our own placements. The BLS released the May 2025 estimates on May 15, 2026. We filtered out payrolling deals, offshore and corp-to-corp work, and anything with an abnormal bill-to-pay relationship. Those skew averages and don’t reflect what a normal engineering contract costs.

We’ll refresh the index quarterly. Next update, January 2027. Same method, new wages, and new placements, and the cells we already published won’t move unless the underlying data does, because a rate page whose numbers drift every time somebody adds a role is a rate page nobody should trust.

What Engineering Managers Ask Us Before They Sign

Through a staffing agency, what does a contract mechanical engineer cost per hour?

About $75 to $94 an hour nationally at mid-level, with a median of $83, according to the KORE1 Contract Rate Index 2026-Q4. Junior engineers bill around $60 to $73, and seniors around $94 to $114. Southern California, Houston, and the Bay Area run higher.

Why is an electrical engineer quoted higher than a mechanical engineer with the same years?

Because the market pays them more. BLS puts the median electrical engineer wage near $58 an hour against about $50 for mechanical, so electrical and controls seats land in the upper half of each band. PLC experience on Allen-Bradley or Siemens pushes it further.

Is a PLC engineer’s hourly rate the same as the bill rate?

No. The hourly rate an engineer sees on a job board is pay; the bill rate is what you’re invoiced. A bill rate adds a 24% burden for taxes, insurance, and mandated benefits, plus the staffing firm’s margin.

So when a search for a PLC electrical engineer’s hourly rate turns up a number in the $40s or $50s, that’s wages. Budget from the bill rate tables above. Not the job board.

How much does it cost to hire a mechanical engineer for three months?

$42,900 at the national mid-level median, assuming 40 hours a week. In Orange County or Los Angeles, plan on about $51,100, and in the Bay Area about $64,500. Overtime during commissioning or launch weeks comes on top.

Do quality engineers cost more than manufacturing engineers?

Often, when the work is regulated. We price quality engineers on the same band as manufacturing engineers, then move them up for FDA, ISO 13485, or AS9100 documentation loads.

An automotive quality engineer handling PPAP and 8D reports usually sits near the median. A device quality engineer writing CAPAs and validation protocols usually doesn’t.

Can we hire the contractor permanently later?

Yes, and after 1,040 hours there’s no conversion fee with KORE1. Across all roles in our placement data, 37.5% of contract-to-hire placements converted to permanent roles (n=552).

Pricing a Seat

If you have a program on the calendar, send us the five details that drive the number, which are role, level, metro, start date, and length. Our manufacturing engineering staffing team will price it against the index and tell you, plainly, where in the band your seat should land and why. The full-time side of the market is in our mechanical engineer salary guide and electrical engineer salary guide. When you’re ready, talk to an engineering recruiter.