The system that's down was built, and is currently supported by, Tata Consultancy Services with support from BA IT staff. Once the system was built, BA made the majority of the IT department redundant.
The biggest Norwegian bank also uses Tata. A friend of mine that worked on a project there talked few times with their programmers. The company treated them really badly including things like trying not to pay for accommodation while they were in Norway for few months. They also told that they actively searched for a new job.
