It seems pretty common practice now, for potential employers to insist upon a certificate in testing. This is often the ISEB/ISTQB Foundation certificate at a minimum. Now before I go into this, I want to offer a disclaimer. I do hold both the ISTQB Foundation and BCS Intermediate certificates in software testing, largely due to my past employer insisting upon it.
Now there are a few issues with requesting these certifications, but the main one occurs when using agencies or job sites for recruitment. This is especially true where these make use of CV screeners. Looking for keywords in a CV document is no rationale for finding a skilled tester.
Now you might say that at least it provides some CVs for review and those that have taken the time to do the certificate. But wait! What about someone who has worked in a multitude of indistry sectors, has been a tester for ten years plus, but has not seen fit to undertake the certificates? I feel that by insisting upon these certificates we are missing out on potential talent. Moreover, by making use of CV screening technology in general I feel it is significantly detrimental to finding quality potential employees.
Certifications aren’t everything and in my personal experience it is easy to find people who hold the certification, but when interviewed know nothing of its application. Worse, often they know nothing of testing in general.