Economist Group Senior Software Engineer interview questions

Interview started with a screening round followed by two technical rounds and Hiring Manager round. Both technical rounds were cleared and interviewer were also excellent. Managerial round interviewer expects you to know everything in the mobile world. After the final round I am still waiting for the results, they showcased very less professionalism in communicating interview outcome. They also don't revert to your follow up e-mails or calls. If you wish to save time do not give interview here.