Tester:
Tester is the person that performs the testing process on the software in order to detect the defects. Tester also checks different aspects of the software. Tester doesn't know the development process of the software. Tester checks whether the software has bugs and defects or not.
SDET:
SDET stands for Software Development Engineer in Test. SDET is the person that plays role in both development and testing process. SDET knows the internal design and implementation of the software. Tester who can code is known as SDET.
Difference between Tester and SDET:
