Senior IOS Developer applicants have rated the interview process at BT Group with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 68.5% positive. This is according to Glassdoor user ratings.
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It was medium. Interview went for one hour. There are total 4 rounds. two technical, one managerial and one HR. Generally they don't ask DS related question. But it can be from array and string.
Interview questions [1]
Question 1
1- Singleton.
2-Unit Test
3- UI test
4- API related question