well, may not be able to answer all your qns
but a simple check on web will find out that A-IT is a software company specialized in IT outsourcing in financial industry.
Thus, I guess citigroup might have outsourced the maintenance and operation of their IBM mainframes to this company, and the recruitment in shanghai is simply to keep the human resource cost low. But I am not in technology office so not sure about the details.
Usually those who worked for IT outsourcing companies will not have official any relation with the client companies. In this case, an A-IT software engineer may work in Citigroup premise but remains as an A-IT staff.
It's difficult to sell a mainframe now, actually I think nobody want to buy mainframe server anymore. But there are huge number of existing mainframes running critical but dinasour applications in the industry, and I think it may take decades to completely replace them. So maintaining mainframe may not be a popular pick as your career but if you are really good, the opportunity is there.
恐龙很容易拼错的
当时我花了好久才记住。
by the way,大象讲的挺对。
淳于天
只能是真的
A-IT Software Services Pte Ltd, established in 1991. Specialized in development outsourcing. Proven track record and continuous strong growth for more than 12 years
Headquartered in Singapore, with regional offices in Malaysia, China, India (operational from Jan 2004). Expertise in project management, system design & development for consumer banking, credit cards and loans. Highly proficient in delivering solutions on VisionPlus and Cardpac。。。
是citibank有个project关于ibm mainframe,然后a-ti出人，由于需要降低人才成本，遂去上海招人。
个人看法随着将来上海的成本越来越高，要降低成本，大量企业会去南京，杭州等靠近上海，又有一些高等学府的城市招人。