Deirdre Grixti Deirdre Grixti is a congenial team leader with over 20 years QC laboratory and QA experience. A creative problem solver, she is able to conceive, develop, and implement new strategies and processes that improve quality and efficiency. Deirdre has: Developed and delivered a course on conducting a cGMP audit. Delivered a major pharmaceutical company's GMP training course for six months. Delivered GMP training to various levels for both drug and NHP facilities.