Farewell Letter After Internship
A good internship ends with gratitude and an open door. This professional farewell letter thanks your mentor and team for their guidance, reflects on what you learned, and keeps the relationship warm for future opportunities.
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When and how to use this letter
Send this on your second-to-last day, as an email to your mentor with the team copied, or as a message in the team channel if that is the culture. A short handwritten note for your direct mentor, alongside the email, makes a lasting impression. Keep it professional - this letter doubles as a networking tool.
Be specific about what you learned and who taught you; generic thanks are forgettable, but naming a skill and the person behind it shows genuine reflection. Thank the team collectively but call out your mentor by name. Express interest in staying connected without directly asking for a job - 'I would love to keep learning from you' opens doors more gracefully than 'please hire me.' Reference one project by name; it proves you were paying attention and gives them something concrete to remember you by.
The non-obvious move: connect with everyone on LinkedIn within 48 hours of your last day, with a personalized note referencing this letter. Internship contacts decay fast - people change roles and forget names within months. Also ask your mentor for one piece of career advice before you leave, not a reference letter; advice builds the relationship, and the reference will follow naturally when you need it.
Frequently asked questions
Should I send the farewell email on my last day or before?
Can I ask for a full-time job in the farewell letter?
Should I include personal contact details?
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