Dear [First Name],
 
I am writing to inform you that I have decided to resign from my position as [Your Position] at [Company Name]. My last day of work will be [Date of last day of work].
 
I want to thank you for the opportunities and experiences that I have gained while working at [Company Name]. I have enjoyed working with the team and have learned a lot during my time here. However, I have decided to move on and pursue other career opportunities.
 
I will do everything I can to ensure a smooth transition for my departure. I am willing to assist in finding and training a replacement if needed. Please let me know how I can be of assistance during this time.
 
Thank you again for the support that you have given me during my tenure at [Company Name]. I wish you and the company all the best in the future.
 
Sincerely,
 
[Your Name]