How do you write bachelors of applied technology in your signature?

There's no single "correct" way, as it depends on your preference and the context. Here are a few options:

* Formal: B.A.T. (or B. App. Tech.)

* Semi-formal: Bachelor of Applied Technology

* Informal: B.A.T. (This is acceptable in some less formal settings)

If you're including it in an email signature, keep it concise – B.A.T. or Bachelor of Applied Technology are both good choices. In a more formal document like a resume, B.A.T. might be preferred for brevity.