As of August 01, 2026, the average salary for a Mechanical Systems Engineer III in the United States is $108,390 per year, which breaks down to an hourly rate of $52.
However, a Mechanical Systems Engineer III's salary can vary significantly. Here’s a look at the typical salary range:
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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, education, 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 | $79,500 |
| Intermediate Mechanical Engineer | 2-4 years | $93,746 |
| Mechanical Systems Engineer III | 4-7 years | $108,341 |
| Specialist Mechanical Engineer | 7+ years | $129,094 |
| Expert Mechanical Engineer | 7-10 years | $148,543 |
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:
Demanded Skills for the Role:
| Skills | Demand Percentage |
|---|---|
| Analysis | 9% |
| Design Engineering | 2.54% |
| AutoCAD | 1.84% |
| Skill | Salary | Salary % Increase |
|---|---|---|
|
Prototyping
|
$112,726 |
4%
|
|
Computer Vision
|
$112,726 |
4%
|
|
Salesforce
|
$111,642 |
3%
|
|
Algorithms
|
$111,642 |
3%
|
|
Artificial Intelligence
|
$111,642 |
3%
|
|
Machine Learning
|
$111,642 |
3%
|
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 $121,336. While startup companies pay approximate $102,648.
| Company Size | Employees | Average Salary |
|---|---|---|
| Startup | 1~50 | $102,648 |
| Growth Stage | 51~500 | $108,562 |
| Established | 501~5000 | $117,172 |
| Enterprise | 5000+ | $121,336 |
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 | $130,068 | $63.0 | 20% |
| Biotechnology | $130,068 | $63.0 | 20% |
| Business Services | $130,068 | $63.0 | 20% |
| Chemicals | $130,068 | $63.0 | 20% |
| Construction | $130,068 | $63.0 | 20% |
Your level of education can impact your salary potential. While many Mechanical Systems Engineer IIIs enter the field with a Bachelor's Degree degree, higher education can lead to more specialized and higher-paying roles.
According to our 100% employer-reported salary data, the median salary for a Mechanical Systems Engineer III with a Bachelor's Degree is between $110,380 and $116,132).
Mechanical Systems Engineer III Salaries by Degree Level
| Degree Level | % of user with this level of education |
|---|---|
| No Diploma | 0.1% |
| High School | 0.4% |
| Associates | 1.6% |
| Bachelors | 48.7% |
| Masters | 38.9% |
| Doctorate | 10.3% |
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.
Last Updated on August 01, 2026Promotions 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 | $131,600 | 21% |
| Specialist Mechanical Engineer | $129,100 | 19% |
Salaries for a Mechanical Systems Engineer III can change over time, reflecting shifts in market demand and the overall economy. The median salary decreased from $119,047 in 2023 to around $111,074 in 2025, reflecting changes in demand, location, experience, and the wider economy. For a detailed analysis of Mechanical Systems Engineer III salary trends, .
| Year | Average Annual Salary |
|---|---|
| 2022 |
View More
|
| 2023 | $119,047 |
| 2024 | $114,095 |
| 2025 | $111,074 |
| 2026 |
View More
|
| 2027 |
View More
|
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The Aerospace & Defense industry offers the highest average compensation for Mechanical Systems Engineer III roles, with salaries approximately 20% above the market median.
Yes, systems engineers can earn competitive salaries. For a Mechanical Systems Engineer, the salary ranges from a minimum of $105,590 to a maximum of $127,090, with a mid-salary of $115,890. This indicates a solid earning potential, especially as experience increases, with seasoned professionals earning even higher.
Yes, the USA is a promising place for mechanical engineers. With over 128,000 professionals in the field, the Bureau of Labor Statistics anticipates a 10% growth in employment from 2022 to 2032, adding approximately 26,000 jobs by 2026. Salaries for mechanical systems engineers range from $105,590 to $127,090, with a median of $115,890, reflecting strong demand and competitive compensation.
The role of a Mechanical Systems Engineer can be stressful due to the responsibility of managing complex systems where errors can lead to significant consequences. The need for continuous learning in a rapidly evolving field adds to the pressure. Salaries for this position range from $105,590 to $127,090, reflecting the expertise required to navigate these challenges.
While the average salary for a Mechanical Systems Engineer ranges from $105,590 to $127,090, it is possible for experienced engineers to earn higher salaries, potentially reaching $150,000 or more, especially in specialized roles or industries. Advanced skills and experience can significantly influence earning potential.
The top 10% of Mechanical Systems Engineers earn significantly more than the average. Based on current salary data, they can expect to make around $127,090 annually, while the median salary is approximately $115,890. This reflects the high demand and specialized skills required in the field.
A systems engineer primarily focuses on designing, testing, and integrating complex systems rather than coding. While they may write some code for system integration or automation, their main role is to ensure that all components work together effectively. The salary for a Mechanical Systems Engineer ranges from $105,590 to $127,090, with a mid-salary of $115,890.
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