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The differences between senior project engineers and principal engineers can be seen in a few details. Each job has different responsibilities and duties. It typically takes 4-6 years to become both a senior project engineer and a principal engineer. Additionally, a principal engineer has an average salary of $130,213, which is higher than the $97,803 average annual salary of a senior project engineer.
The top three skills for a senior project engineer include project management, construction management and CAD. The most important skills for a principal engineer are java, architecture, and python.
| Senior Project Engineer | Principal Engineer | |
| Yearly salary | $97,803 | $130,213 |
| Hourly rate | $47.02 | $62.60 |
| Growth rate | 2% | 2% |
| Number of jobs | 146,838 | 312,683 |
| Job satisfaction | - | - |
| Most common degree | Bachelor's Degree, 76% | Bachelor's Degree, 66% |
| Average age | 41 | 41 |
| Years of experience | 6 | 6 |
A senior project engineer is responsible for monitoring the project team's overall process and operations from conceptualization until completion, ensuring the adherence to the clients' specifications, within the budget's goals, and the required deadline. Senior project engineers regularly communicate with the client regarding updates or necessary adjustments. They develop strategic procedures to finish the project efficiently by running diagnostic tests and troubleshooting discrepancies. A senior project engineer must have excellent communication and leadership skills to handle the team's performance and provide assistance when necessary.
A principal engineer is responsible for monitoring the overall design phase of the construction process, including coordinating with the client for progress and updates, as well as performing adjustments as needed based on clients' specifications and requirements. Principal engineers also inspect the materials and resources used to ensure that the project stays within the budget goals and set timeframe. They should have excellent communication and organizational skills, especially in preparing reports and training new staff.
Senior project engineers and principal engineers have different pay scales, as shown below.
| Senior Project Engineer | Principal Engineer | |
| Average salary | $97,803 | $130,213 |
| Salary range | Between $77,000 And $124,000 | Between $95,000 And $177,000 |
| Highest paying City | San Francisco, CA | San Mateo, CA |
| Highest paying state | Maryland | California |
| Best paying company | Amazon | Grubhub |
| Best paying industry | Automotive | Telecommunication |
There are a few differences between a senior project engineer and a principal engineer in terms of educational background:
| Senior Project Engineer | Principal Engineer | |
| Most common degree | Bachelor's Degree, 76% | Bachelor's Degree, 66% |
| Most common major | Mechanical Engineering | Electrical Engineering |
| Most common college | Michigan Technological University | Michigan Technological University |
Here are the differences between senior project engineers' and principal engineers' demographics:
| Senior Project Engineer | Principal Engineer | |
| Average age | 41 | 41 |
| Gender ratio | Male, 84.4% Female, 15.6% | Male, 92.6% Female, 7.4% |
| Race ratio | Black or African American, 3.2% Unknown, 4.5% Hispanic or Latino, 8.4% Asian, 14.8% White, 69.0% American Indian and Alaska Native, 0.1% | Black or African American, 3.1% Unknown, 4.5% Hispanic or Latino, 7.8% Asian, 16.6% White, 67.9% American Indian and Alaska Native, 0.1% |
| LGBT Percentage | 5% | 5% |