Please let this letter serve as a notification of my resignation from Principle Construction effectively immediately. I do understand that this puts considerable pressure on you personally, but I can no longer work under the conditions created by Principle and I am also no longer going to tolerate the personal attacks on my character.
For the past several months, certain factions within Principle have been stealing my various design ideas and then taking credit for them. When I attempt to stand up for myself and reclaim my ideas, my name is slandered all over the company. These actions have been brought up repeatedly to management, but no action has been taken to solve the problem. I can only assume that these actions are condoned and even endorsed by management.
I have not informed anyone else of my decision and leave it to you to make the necessary arrangements for my departure. I have sent a letter to human resources regarding my resignation and where to mail my last paycheck. If you have questions, please call me at 000-000-0000 or email me at email@example.com.