Those who believe they will be actively customizing their automated test environments may want to start with Selenium and customize it from there, whereas those who want to begin in a more structured test environment may be better off with one of the systems that are built on top of Selenium. Selenium can be scripted in a multitude of languages, including Java, Python, PHP, C#, and Perl.
This article uses the term “tester” to refer to the person involved in testing software with automation tools. It is not meant to distinguish by job title or technical proficiency. Jim Hazen describes himself as a hybrid, or “technical tester,” because he can write test scripts and develop what he refers to as “testware.” The trend is to hire for multiple skillsets, but that does not mean the non-technical stakeholders involved in software development don’t benefit from automation testing.