Here are 3 examples that you can use for resignation letter as Assistant Professor -. I am writing to formally tender my resignation from my position as an Assistant Professor at Crestwood High School, effective June 20, 2053.You'll have to submit a formal resignation letter. I am writing this letter to inform that, I will be resigning from my position as Assistant Professor with Sathyabama University, effective from 31.10.2017. For example, "I am writing to formally resign from my position as Assistant. Do you have a union and do they have a template to follow? I would like to thank the faculty and staff for their support and guidance during my time here. We all had nice time you during your stay in the department. Before my departure, I will ensure that our recent beach theme design is complete {Project, Proposal, and Report}. Second paragraph: You can explain why you're leaving in the second paragraph, but keep it brief and professional.