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The differences between senior performance engineers and quality assurance testers can be seen in a few details. Each job has different responsibilities and duties. It typically takes 2-4 years to become both a senior performance engineer and a quality assurance tester. Additionally, a senior performance engineer has an average salary of $110,382, which is higher than the $74,140 average annual salary of a quality assurance tester.
The top three skills for a senior performance engineer include java, jmeter and linux. The most important skills for a quality assurance tester are manual test cases, regression, and test scripts.
| Senior Performance Engineer | Quality Assurance Tester | |
| Yearly salary | $110,382 | $74,140 |
| Hourly rate | $53.07 | $35.64 |
| Growth rate | 11% | - |
| Number of jobs | 95,530 | 82,396 |
| Job satisfaction | - | - |
| Most common degree | Bachelor's Degree, 66% | Bachelor's Degree, 66% |
| Average age | 44 | 44 |
| Years of experience | 4 | 4 |
Senior Performance Engineers are responsible for optimizing production systems to support traffic growth and new products. Their duties include creating a best practice framework for performance monitoring, scalability, and dependency handling, as well as developing testing infrastructure for post-deployment of production. They are responsible for designing alerts and dashboards, addressing performance issues, conducting root-cause analysis, defining process architecture, and facilitating site reliability in determining requirements for product scalability. Senior Performance Engineers also develop training programs to mentor operation services personnel.
A quality assurance tester, also known as QA tester, has different responsibilities depending on the line of work or industry involved. In a computer development setting, they are in charge of working and coordinating with technical engineers. They have to conduct regular tests for new software and programs, identify inconsistencies, and find areas for improvement. Furthermore, a quality assurance tester must produce reports from the tests, which can be the basis of progress for further developments.
Senior performance engineers and quality assurance testers have different pay scales, as shown below.
| Senior Performance Engineer | Quality Assurance Tester | |
| Average salary | $110,382 | $74,140 |
| Salary range | Between $83,000 And $146,000 | Between $55,000 And $99,000 |
| Highest paying City | San Mateo, CA | San Francisco, CA |
| Highest paying state | California | Maryland |
| Best paying company | Netflix | Apple |
| Best paying industry | Technology | Finance |
There are a few differences between a senior performance engineer and a quality assurance tester in terms of educational background:
| Senior Performance Engineer | Quality Assurance Tester | |
| Most common degree | Bachelor's Degree, 66% | Bachelor's Degree, 66% |
| Most common major | Computer Science | Computer Science |
| Most common college | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
Here are the differences between senior performance engineers' and quality assurance testers' demographics:
| Senior Performance Engineer | Quality Assurance Tester | |
| Average age | 44 | 44 |
| Gender ratio | Male, 76.2% Female, 23.8% | Male, 61.2% Female, 38.8% |
| Race ratio | Black or African American, 6.2% Unknown, 4.7% Hispanic or Latino, 8.8% Asian, 12.0% White, 67.7% American Indian and Alaska Native, 0.5% | Black or African American, 6.2% Unknown, 4.7% Hispanic or Latino, 8.8% Asian, 12.0% White, 67.7% American Indian and Alaska Native, 0.5% |
| LGBT Percentage | 11% | 11% |