What are the main factors that influence a Mainframe Developer III's salary?

The primary factors are: 1) Experience Level, 2) Geographic Location, 3) Education/Skills, 4) Company Size & Industry

How does experience change A Mainframe Developer 's salary?

A Mainframe Developer III's salary grows with experience: starting around $100,745 for beginners, reaching about $102,552 at mid-level, and approach $109,241 for experts.

What are the highest paying states for a Mainframe Developer III?

Mainframe Developer III salary varies significantly by state. The top 3 highest paying states for Mainframe Developer III roles are District of Columbia $114,100, California $113,670, Massachusetts $112,150. These tech hubs typically pay 10-15% above the national average.

How much do different types of Mainframe Developer roles make?

Salaries for Mainframe Developer level roles vary by specialization: Software Developer III: $128,690; Backend Developer III: $125,127; Entry Level Mainframe Developer: $124,771; Application Developer III: $124,711; UI Developer III: $108,040.

Mainframe Developer III Salary in Delaware

How much does a Mainframe Developer III make in Delaware?

As of May 01, 2026, the average salary for a Mainframe Developer III in Delaware is $104,360 per year, which breaks down to an hourly rate of $50.

However, a Mainframe Developer III's salary can vary significantly. Here’s a look at the typical salary range:

Top Earners (90th percentile): $120,790
Majority Range (25th-75th percentile): $96,290 to $112,960
Entry-Level (10th percentile): $88,943

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Mainframe Developer III Salaries by Percentile

	Annual Salary	Monthly Pay	Weekly Pay	Hourly Wage
75th Percentile	$112,960	$9,413	$2,172	$54
Average	$104,360	$8,697	$2,007	$50
25th Percentile	$96,290	$8,024	$1,852	$46

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Key Factors That Influence Mainframe Developer III Salaries

A Mainframe Developer III's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location and company size can directly affect your earning potential.

How Experience Level Affects Mainframe Developer Salaries?

Experience is a primary driver of a Mainframe Developer III's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:

Entry-Level (less than 1 year): $100,745
Early Career (1-2 years): $101,347
Mid-Level (2-4 years): $102,552
Senior-Level (5-8 years): $106,928
Expert (over 8 years): $109,241

Levels	Salary
Entry Level Mainframe Developer III	$100,745
Intermediate Level Mainframe Developer III	$101,347
Senior Level Mainframe Developer III	$102,552
Specialist Level Mainframe Developer III	$106,928
Expert Level Mainframe Developer III	$109,241

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What Am I Worth?

How Do Mainframe Developer III Salaries Vary from State to State?

Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Mainframe Developer IIIs. For example, consider the average annual salaries in these key locations:

District of Columbia: $114,100.
California: $113,670.
Massachusetts: $112,150.

District of Columbia $114,100 California $113,670 Massachusetts $112,150 Washington $111,740 New Jersey $111,700 Alaska $111,550 Connecticut $110,130 New York $109,550

Hawaii $107,710 Rhode Island $106,840 Maryland $106,260 Minnesota $105,450 Colorado $105,140 Illinois $105,040 Oregon $104,650 Delaware $104,360

New Hampshire $104,180 Virginia $103,770 Pennsylvania $102,590 Nevada $101,990 North Dakota $101,790 Michigan $101,490 Wisconsin $101,370 Vermont $101,150

Texas $100,520 Maine $100,480 Arizona $100,410 Ohio $100,340 Georgia $99,390 Indiana $98,920 Wyoming $98,830 Utah $98,680

Iowa $98,620 Kansas $98,130 Louisiana $97,980 North Carolina $97,930 Missouri $97,910 Florida $97,510 Montana $97,290 Nebraska $97,090

Kentucky $96,970 South Carolina $96,560 Tennessee $96,300 Idaho $96,200 New Mexico $95,450 Oklahoma $95,280 Alabama $94,670 South Dakota $93,650

Arkansas $93,100 West Virginia $92,800 Mississippi $91,900

Top Paying Cities for Mainframe Developer IIIs

Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:

Lincoln: $103,890
Little Creek: $104,650
Magnolia: $104,500

Lincoln, DE $103,890 Little Creek, DE $104,650 Magnolia, DE $104,500 Milford, DE $104,150 Marydel, DE $104,330 Millsboro, DE $103,450 Millville, DE $103,610 Milton, DE $103,790

Nassau, DE $103,870 Ocean View, DE $103,600 Rehoboth Beach, DE $103,800 Seaford, DE $103,850 Selbyville, DE $103,430 Smyrna, DE $104,720 Viola, DE $104,240 Woodside, DE $104,520

Bear, DE $104,280 Newark, DE $104,240 Claymont, DE $104,450 Delaware City, DE $104,350 Hockessin, DE $104,230 Kirkwood, DE $104,330 Middletown, DE $104,370 Montchanin, DE $104,260

New Castle, DE $104,270 Odessa, DE $104,420 Port Penn, DE $104,490 Rockland, DE $104,270 Saint Georges, DE $104,330 Townsend, DE $104,490 Winterthur, DE $104,280 Lewes, DE $103,830

Wilmington, DE $104,240 Dover, DE $104,650 Dover Afb, DE $104,100 Bethany Beach, DE $103,490 Bethel, DE $103,600 Bridgeville, DE $103,840 Camden Wyoming, DE $104,360 Cheswold, DE $104,620

Clayton, DE $104,620 Dagsboro, DE $103,420 Delmar, DE $103,250 Ellendale, DE $103,560 Felton, DE $104,150 Fenwick Island, DE $103,440 Frankford, DE $103,260 Frederica, DE $104,250

Georgetown, DE $103,380 Greenwood, DE $103,860 Harbeson, DE $103,490 Harrington, DE $104,010 Hartly, DE $104,340 Houston, DE $103,870 Kenton, DE $104,630 Laurel, DE $103,310

Yorklyn, DE $104,260

Mainframe Developer III Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how a Mainframe Developer III's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.

Last Updated on May 01, 2026

$96,290

Average $104,360/year

$112,960

$8,024

Average $8,697/month

$9,413

$1,852

Average $2,007/week

$2,172

$46

Average $50/hour

$54

	Annual Salary	Monthly Pay	Weekly Pay	Hourly Wage
75th Percentile	$112,960	$9,413	$2,172	$54
Average	$104,360	$8,697	$2,007	$50
25th Percentile	$96,290	$8,024	$1,852	$46

Mainframe Developer III Salary Growth & Career Path

Mainframe Developer III

Application Programmer Analyst IV

Software Research and Design Architect IV

Backend Applications Developer IV

Full Stack Engineer Specialist

Applications Programming Project Supervisor

VP of Software Research and Design Architecture

Backend Applications Developer V

Promotions are the fastest way to increase your earnings. As a Mainframe Developer III, you have the following paths for advancement. The table below compares the salary raises for common next-step roles. By comparing these figures, you can choose the career path that best meets your financial goals.

Mainframe Developer III Salary Growth and Career Path
Next Step Role	Estimate Salary	Projected Raise
Application Programmer Analyst IV	$145,500	39%
Software Research and Design Architect IV	$147,530	41%
Backend Applications Developer IV	$147,300	41%
Full Stack Engineer Specialist	$147,300	41%

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