Apple is looking to hire a “Wifi Software Engineer” to work full time on what appears to be 802.11n for the iPhone.

From the job description:

We are looking for a talented and energetic software engineer for the iPhone WiFi team to help develop the next generation of mobile Wireless LAN technologies.

There have been rumors of 802.11n support in the current iPhone and iPod touch but the only references to such functionality I’ve been able to find have been in rumors before the device’s launch.

Previously:
10/15/09: Apple Developing FM Tuner App for the iPhone
4/9/09: iPhone 3,1 Parts Shipping, 802.11n, Video Editing, and More