[riker2]

PhD's are not for everybody. Don't sweat it. I know people who took 6-7 years to figure that out.

Start applying for jobs. Expect rejections and interviews to go badly initially. Working at a PhD lab doesn't really prepare you for the standard dev position interview process. Unless you have worked on something interesting that a company is interested in, you have to put in some interview prep work. Put in the hours in prep, it will pay off.

If you made it into an Ivy League school, you can make it into any dev position you want. I can understand the self doubt and feelings of uncertainty you are experiencing, but the key is to refocus the mind on interview processes and prep. Good luck!