I have finished a Ph.D. with a strong focus on statistics and then worked as a data analyst and data scientist for three years. It gave me a few valuable insights into the data science job market and career path.
It also made me familiar with the general problems that people willing to become data scientists can be confronted with. I started to blog about my experience and then moved to commercial assignments on this topic.
I have ghostwritten for a company offering an interview mocking software. I covered technical interview questions, including very specific knowledge, like programming languages and cloud computing.
I am actively blogging on Medium and Towards Data Science. I share my experience with online programming courses and other tricks to prepare for a data science interview.