Tesco Software Engineering Manager interview questions

Phone Interview followed by a 3 hour on site interview in WGC. The face 2 face was as if it was for a technical architect position. The 3 on-site stages were: Competency, Code Review and System Design. Competency was unstructured, no questions about how I would handle situations. I described why I wanted to join Tesco supporting with figures, but the interviewer was unimpressed. Code Review had no direction. I was shown a project and handed over the laptop. Then it was up to me, to call their code good/bad. pointed out a lot of production issues with the code, which probably didn't sit well with the interviewer. System design was as if it was for a technical architect. I was expected to know how cryptology with a scanner works.