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As of August 01, 2026, the average salary for a Mechanical Design Engineer III in Missouri is $102,940 per year, which breaks down to an hourly rate of $49.
However, a Mechanical Design Engineer III's salary can vary significantly. Here’s a look at the typical salary range:
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Mechanical Design Engineer III Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $110,580 | $9,215 | $2,127 | $53 |
| Average | $102,940 | $8,578 | $1,980 | $49 |
| 25th Percentile | $95,890 | $7,991 | $1,844 | $46 |
Pentangle Tech Services | P5 Group - Springfield, MO
Axion Recruitment - Kansas City, MO
Belcan - High Ridge, MO
Labor Solutions Professional - Saint Louis, MO
A Mechanical Design Engineer 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.
Experience is a primary driver of a Mechanical Design Engineer 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:
| Job Role | Years of Experience | Average Salary |
|---|---|---|
| Entry Mechanical Engineer | 0-2 years | $75,533 |
| Intermediate Mechanical Engineer | 2-4 years | $89,068 |
| Mechanical Design Engineer III | 4-7 years | $102,935 |
| Specialist Mechanical Engineer | 7+ years | $122,652 |
| Expert Mechanical Engineer | 7-10 years | $141,131 |
What Am I Worth?
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 Mechanical Design Engineer IIIs. For example, consider the average annual salaries in these key locations:
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:
Mechanical Design Engineer III salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $115,235. While startup companies pay approximate $97,486.
| Company Size | Employees | Average Salary |
|---|---|---|
| Startup | 1~50 | $97,486 |
| Growth Stage | 51~500 | $103,103 |
| Established | 501~5000 | $111,280 |
| Enterprise | 5000+ | $115,235 |
For Mechanical Design Engineer III roles, the industry you choose can affect earning potential by as much as 40% (the gap between the highest and lowest paying industries). Data shows that the Aerospace & Defense and Biotechnology sectors offer the strongest compensation, at 20% above the average. In contrast, Mechanical Design Engineer positions in Transportation or Telecom typically offer lower base pay, as these industries often view Mechanical Design Engineer III as a support function rather than a direct revenue driver.
| Industry Sector | Average Annual Salary | Average Hourly Rate | Pay vs.Avg |
|---|---|---|---|
| Aerospace & Defense | $123,528 | $59.0 | 20% |
| Biotechnology | $123,528 | $59.0 | 20% |
| Business Services | $123,528 | $59.0 | 20% |
| Chemicals | $123,528 | $59.0 | 20% |
| Construction | $123,528 | $59.0 | 20% |
Understanding how a Mechanical Design Engineer 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.
| Annual Salary | Monthly Pay | Weekly Pay | Hourly Wage | |
|---|---|---|---|---|
| 75th Percentile | $110,580 | $9,215 | $2,127 | $53 |
| Average | $102,940 | $8,578 | $1,980 | $49 |
| 25th Percentile | $95,890 | $7,991 | $1,844 | $46 |
Promotions are the fastest way to increase your earnings. As a Mechanical Design Engineer 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.
| Next Step Role | Estimate Salary | Projected Raise |
|---|---|---|
| Manufacturing Product Engineer IV | $125,100 | 22% |
| Specialist Mechanical Engineer | $122,660 | 19% |
Ready to take the next step in your career? Browse thousands of current Mechanical Design Engineer III job openings on our job board. Use the search bar below to find your perfect match.
Boeing
Saint Louis, MO
Boeing | Saint Louis, MO
Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that... more
3 Days Ago
Mark Andy Inc
Chesterfield, MO
Mark Andy Inc | Chesterfield, MO
Job Description. Job Description. JOB SUMMARY. As a Mechanical Engineer – Machine Design, for Mark Andy Global Headquarters in Chesterfield, MO you will be... more
2 Days Ago
Boeing
Hazelwood, MO
Boeing | Hazelwood, MO
Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that... more
3 Days Ago
Arrow Electronics, Inc.
SAN JOSE, CA
Arrow Electronics, Inc. | SAN JOSE, CA
Position. Design Verification Engineer (Einfochips). Job Description. Experience: 6+ Years. Location: San Jose CA. Job Description. What candidate will Be ... more
1 Day Ago
Altamira Material Solutions
JERSEY VILLAGE, TX
Altamira Material Solutions | JERSEY VILLAGE, TX
Role and Responsibilities The Application Design Engineer serves as the technical liaison between customers, sales, quality, and manufacturing. This role i... more
1 Day Ago
JABIL CIRCUIT, INC
SALT LAKE CITY, UT
JABIL CIRCUIT, INC | SALT LAKE CITY, UT
JOB SUMMARY. Develops new engineering designs ranging from basic to high complexity. Develops and communicates technical solutions to other engineers and b... more
3 Days Ago
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