Unless the job you're applying for is heavily focussed on developing algorithms to solve hard problems, technical interviews which focus on those type of problems should be considered red flags. In fact, any coding interview which cannot realistically tell the employer something useful about your ability to perform the tasks in the job description with the tools/languages required is a definite red flag, IMHO.
Engineering Manager at @commercetools, with a strong technical experience and a primary focus on software engineering; I am an open-source enthusiast who mostly contributes to Go and PHP projects.Eng
Unless the job you're applying for is heavily focussed on developing algorithms to solve hard problems, technical interviews which focus on those type of problems should be considered red flags. In fact, any coding interview which cannot realistically tell the employer something useful about your ability to perform the tasks in the job description with the tools/languages required is a definite red flag, IMHO.
I am 100% agree with Kevin, any decent company should offer you a lot of transparency on the role and the responsibilities related to it.