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As of August 01, 2026, the average salary for a Mechanical Systems Engineer III in Texas is $105,690 per year, which breaks down to an hourly rate of $51.
However, a Mechanical Systems Engineer III's salary can vary significantly. Here’s a look at the typical salary range:
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Mechanical Systems Engineer III Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $113,590 | $9,466 | $2,184 | $55 |
| Average | $105,690 | $8,808 | $2,033 | $51 |
| 25th Percentile | $98,490 | $8,208 | $1,894 | $47 |
Data Analysis Inc. - Plano, TX
The Lisbon Group, LLC - Houston, TX
Constellation Energy - FORRESTON, IL
Constellation Energy - WINNEBAGO, IL
A Mechanical Systems 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 Systems 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 | $77,544 |
| Intermediate Mechanical Engineer | 2-4 years | $91,440 |
| Mechanical Systems Engineer III | 4-7 years | $105,676 |
| Specialist Mechanical Engineer | 7+ years | $125,918 |
| Expert Mechanical Engineer | 7-10 years | $144,889 |
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 Systems 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 Systems Engineer III salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $118,314. While startup companies pay approximate $100,091.
| Company Size | Employees | Average Salary |
|---|---|---|
| Startup | 1~50 | $100,091 |
| Growth Stage | 51~500 | $105,858 |
| Established | 501~5000 | $114,253 |
| Enterprise | 5000+ | $118,314 |
For Mechanical Systems 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 Systems Engineer positions in Transportation or Telecom typically offer lower base pay, as these industries often view Mechanical Systems 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 | $126,828 | $61.0 | 20% |
| Biotechnology | $126,828 | $61.0 | 20% |
| Business Services | $126,828 | $61.0 | 20% |
| Chemicals | $126,828 | $61.0 | 20% |
| Construction | $126,828 | $61.0 | 20% |
Understanding how a Mechanical Systems 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 | $113,590 | $9,466 | $2,184 | $55 |
| Average | $105,690 | $8,808 | $2,033 | $51 |
| 25th Percentile | $98,490 | $8,208 | $1,894 | $47 |
Promotions are the fastest way to increase your earnings. As a Mechanical Systems 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 | $128,400 | 21% |
| Specialist Mechanical Engineer | $125,920 | 19% |
Ready to take the next step in your career? Browse thousands of current Mechanical Systems Engineer III job openings on our job board. Use the search bar below to find your perfect match.
Constellation Energy
DAVIS JUNCTION, IL
Constellation Energy | DAVIS JUNCTION, IL
Constellation, a leader in energy solutions, is seeking a Mechanical Systems Engineer to enhance our engineering team. This role focuses on the development... more
6 Days Ago
Constellation Energy
GERMAN VALLEY, IL
Constellation Energy | GERMAN VALLEY, IL
Constellation, a leader in energy solutions, is seeking a Mechanical Systems Engineer to enhance our engineering team. This role focuses on the development... more
6 Days Ago
Constellation Energy
LOVES PARK, IL
Constellation Energy | LOVES PARK, IL
Constellation, a leader in energy solutions, is seeking a Mechanical Systems Engineer to enhance our engineering team. This role focuses on the development... more
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Constellation Energy
KINGSTON, IL
Constellation Energy | KINGSTON, IL
Constellation, a leader in energy solutions, is seeking a Mechanical Systems Engineer to enhance our engineering team. This role focuses on the development... more
6 Days Ago
Constellation Energy
FAIRDALE, IL
Constellation Energy | FAIRDALE, IL
Constellation, a leader in energy solutions, is seeking a Mechanical Systems Engineer to enhance our engineering team. This role focuses on the development... more
6 Days Ago
Constellation Energy
MOUNT MORRIS, IL
Constellation Energy | MOUNT MORRIS, IL
Constellation, a leader in energy solutions, is seeking a Mechanical Systems Engineer to enhance our engineering team. This role focuses on the development... more
6 Days Ago
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