1.第一個老板是不是對我不確定，才會create這麽多的步驟？
Pretty much yes.
2.我應不應該follow up第二個麵試（麵試第二天發了thank you note).
It never goes wrong for being polite.
3.第三個，如果這三個工作，包括我現在的這個，我應該如何選擇？我碩士學曆，英文和交流比較好。工作3年半左右，在IP Infrastructure 做solution design，以前有麵向客戶的經曆。先謝謝各位指教
Mostly pending on your interests. But I don't see why you'd like to go for testing, which tends to be a boring and low pay job.
My own internal transfer story: applied 3 positions, 2 called/emailed me back in 5 minutes, 1 called me 3 weeks back, after I already accepted an offer.
First I applied for one (we did online), the manager called me within 5 minutes, he was pleased after talking with me, which is quite technical related. Unfortunately he seemed to not have the decision power, so his director called me immediately without a notification, it was when I made some mistakes and slipped something I shouldn't say, for I was over-confident with my conversation with that manager. Apparently instructed by his boss, this manager arranged another tech guy to phone interview me, also asked to see my performance review (though mine is perfect, legally he shouldn't ask for that). Later on when I checked with him, he told me they were "processing it". I knew it was done.
So I had to apply another one, this time I applied 2 positions. One of them emailed me in 5 minutes, the director, my current boss, called me in 2 days, glad I was very cautious this time. He told me his tech guy would call me the next day. My conversation went well with the tech guy , in fact, it went so well that although he said some other team members would call me later, they never called. The offer was sent to me within a week. And it took only 2 phone calls, nothing else. The other position called me after I already had the offer, guess they had passed some other candidates.
Conclusion: when they really want to hire you, they don't waste time.
