I'm a little over 2 months out and have just the slightest bit of redness left. I notice it more than anyone else does, and even in photos it's not very noticeable. I do keep my head buzzed pretty short for the time being though so that the lack of density in the front isn't as noticeable - but the redness was gone enough for me after about 5 weeks, so there's a chance you'll be okay in time for the interview.
As for a temporary fix - I went the hat route while I was recovering and the redness was still pretty bad. Any way you can do this? You can get nice hats that look professional, and my job even allowed me to wear a hat at work for a while. I'm not sure how it works legally, but I was under the impression that if you have a medical reason to wear the hat, they can't really say no. And my story was simple enough.... I had a small procedure and ended up having an allergic reaction to the local anesthesia, so the doctor needed me to wear a hat for a while to prevent infection - and I told them it looked gross, so no one wanted to see it anyway. Haha. No one questioned it. Depending on the person, they may ask an annoying followup like "What kind of procedure", in which case you can respond with whatever generic answer you wanna give. Going out in public during recovery was one of my main concerns with the HT, but it ended up being much smoother than I ever anticipated.