Download a free immediate effect resignation letter template, easily customizable for your personal situation. Software Engineer Resignation Letter With Immediate Effect.Finally, let's see an example of a letter of resignation with immediate effect. Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Simple tips for how to write a resignation letter, with free copy-and-paste resignation letter templates. Download free sample resignation letters in Microsoft Word and other formats. Easily edit and customize your resignation letter template. Mention the position you're resigning from and the effective date of your resignation. For those who are planning to quit their job, giving notice to your employer is a must. Download these free immediate resignation letters.