Huawei Technologies Machine Learning Researcher interview questions

It was an informal 15-minutes interview by a recruiter over the phone. Before interviewing, the recruiter asked me to email him my CV. When we were done, he said the technical team will review my CV and get back to me for the interview process.

Phone interview going over my technical experience. Then 4 hour coding test in C++. The coding test was basically having to write an entire program in 4 hours related to neural networks, training, and data preprocessing.