Jayr is a barrister at the Victorian Bar. He practices in all aspects of health and medical law including, public and administrative law, medical negligence, disciplinary proceedings, coronial inquests, criminal and quasi-criminal matters. His practice also extends to commercial law and taxation law.

Before coming to the bar, Jayr had 10 years of broad legal and commercial experience. He is an experienced litigator having worked as a Principal Solicitor at the Department of Health and Human Services, as Legal Counsel at Western Health and as a lawyer at Meridian Lawyers and Ashurst Australia.

Jayr holds a Master of Laws (specialising in taxation) from the University of Melbourne and a Bachelor of Laws from Monash University. He was awarded an academic prize for the law subject Legal Issues in Medicine and is published in a number of legal, academic and health industry journals.