If Experian follow XP closely, design/architecture of software development is a shared responsibility/authority of all team members, although you may have a senior person to act as a coach. So beside understanding architecture, be prepared to write tons of unit test and communicate in UML.

Yes, they are still called programmers. So the job title is fine. Always read job description to know what you are getting into. "Technical Architect", "Java consultant" doesn't tell you ANYTHING. You can have "solution architect" that doesn't know how to code.

p/s: Previously logged in as tomyeo; not an Experian employee, not yet anyway...