REACT Engineering interview questions

Send in your CV with a cover letter. If you’re selected, you will be invited for a day-long interview which consists of an introduction to the company (1-hour long), interview with two staff members (HR type but a bit technical), a 3-hour long task, and lunch in-between those. Expect to arrive for around 08:30 and leave at around 16:00. Ended up not getting the job due to quite a strange reason that I’m still baffled at.