Prefer certified tech. But I started as a clerk and took the PTCE exam and passed. They paid for the exam and offer classes as well as books to help you prepare for it. I self studied with the books they gave me and passed the exam. With the exam being computerized and offered more times a year, this would be a great way to become certified. Please email me your resume or summary of experience, your availability (in terms of hours a week you can work) and I can forward it along to my supervisor. thanks!