A very long interview process, however each person you speak with is welcoming and makes the interviewing process easier. Be prepared to speak about anything you put on your resume and to dive into technical questions.
I applied through an employee referral. The process took 3 months. I interviewed at Airgas
Interview
Phone screening, panel interview, then a skype interview. The interview process is not very hard as they ask typical, generic questions pertaining to your personality, previous projects, etc. Be advised, HR takes very long to send offer letters.
Interview questions [1]
Question 1
Tell us about your experience in the field and what projects you worked on?
I applied through an employee referral. The process took 1 day. I interviewed at Airgas (Tucson, AZ) in Jan 2016
Interview
Basic behavior interview and questions from the provided job description. Questions around safety and project management and customer service. Some open ended questions about handling certain situations like difficult customer or employee. Pretty easy and less than an hour