What my role is depends on who you ask. Officially, I am a Field Service Technician III (tier 2). We are also called Field Service Engineers or Customer Service Engineers. For me, FSE is not appropriate as none of us have engineering degrees, though I have an ASEET from the now defunct ITT Technical Institute. Personally, I find the term CSE just a bit offensive, too close to Customer Service Representative. I do not deal with the public at large and that is all I will say about the company I work for.
My day is different every day. Some of my day is spent as a glorified dispatcher, acknowledging, dispatching and closing service calls from our client to the FSTs. I can resolve service calls in the geographical area I cover either by phone or remote. I have a company vehicle stocked with parts and spare equipment for the calls I can't fix from the comfort of my home office. There is also administrivia to handle and I do work on other projects as time permits that our supervisors need assistance with. I like not knowing what the day will bring and I enjoy having my dogs as my office co-workers