What did you learn at your last job that was so valuable that you want to bring it here with you?
Talk about a few things you don't know. Do you have a strategy for learning them?
What are your least/favorite things about development?
What are your least/favorite things about your primary language/stack?
Do you prefer long running projects? Many iterations on one application or fewer iterations on unrelated projects?
Describe a project on which you would say you were VERY involved. What parts did you actually code? What coding philosophies did you follow and how closely? Why those particular philosophies?
What have I/we said that, for you, would be a reservation or deterrent in taking this job?
What makes you want THIS job?
Describe a project that pushed you beyond your comfort level or expertise.
What constitutes a successful day? Why?
What frustrates you the most? Why?
With what tools/languages are you most comfortable and familiar?
With what processes / workflows are you most comfortable and familiar?
What bores you?
What motivates you?
How do you know when you're done with a feature or project beyond the hard spec you've been given?
What are your hobbies/books/music/movies/tv/cosplay/etc?
How do you have fun?
What was the last good book you read?
What is the relationship between Project Manager and Devs?
How do you expect to spend your time (day x day)?
How would you help a group of differing opinions come together to solve a common problem?
Do you have questions for me?