How much does a Software Quality Assurance Tester IV make in Knoxville, TN? The average Software Quality Assurance Tester IV salary in Knoxville, TN is $73,256 as of September 01, 2024, but the range typically falls between $65,361 and $80,020. Salary ranges can vary widely depending on many important factors, including education, certifications, additional skills, the number of years you have spent in your profession. With more online, real-time compensation data than any other website, Salary.com helps you determine your exact pay target.