Below you'll find a sample resignation letter informing the employer that the employee is resigning due to a new job opportunity. Example: I'm writing to inform you of my decision to resign from my position as a park ranger with the National Park Service, effective May 1st.I am writing to formally notify you of my resignation from my position at PQR. Example: I've learned a great deal during my time here, and I look forward to applying that knowledge in my next career stage. We have some handy tips for writing a letter of resignation. And we also include a nifty (and free) template you can use. In the opening paragraph, clearly state that you are resigning from your position. Please accept this letter as a formal notice of my resignation. I expect to work up to that date unless informed otherwise. After careful consideration, I have made the decision to pursue a new career opportunity that aligns with my longterm goals and aspirations.