I applied via Linkedin and interviewed at Roku (Los Gatos, CA) in January 2018.
The process took just over a month once HR had a chance to review my resume and reach back to me. There was an initial phone call with HR to discuss a few roles that potentially might interest me.
Next step was a phone screen with one of the hiring managers (about 45 minutes) followed by two one hour on-site meetings where I had a chance to meet face-to -face with hiring managers and discuss the role more in detail as well as showcase some of my skills. The format was an informal coffee chat at Roku headquarters and that made me feel comfortable right away.
Discussions got more technical after each meeting and covered many core devops principles including infrastructure-as-code, automated provisioning, CI/CD, alerting/monitoring/logging, self-healing, SLAs, etc. I had a chance to explain the type of problems and solutions I had worked on in the past and ask questions about Roku's cloud infrastructure, process & technologies and short term/long-term devops/SRE strategy.
The final step was a formal 4 hour on-site interview with 5 people (Lead developer, Senior devops engineers, technical managers, HR). It was very conversational and discussions got deeper technically. 3 interviewers asked me to to do a coding problem on the white board. The coding problems were devops appropriate and related to pattern parsing/searching, ci/cd, cloud apis.
Every interviewer clearly stated his/her expectations before the interview session started. People were helpful, considerate, technically sharp and made me feel at ease. It is not an easy interview so my advice to other people is that you have got to know your stuff. I was sent home with a Roku (nice gesture! I did not expected it).
I thought I had done pretty well and was happy with myself no matter the outcome, however, I was surprised to hear from HR the very same day that the initial feedback was positive. Roku moves very fast and less than 2 days later I had a formal offer in hand which I accepted.
While interviewing at Roku, I had other interviews going with other companies, and I must say Roku had the most organized process. HR was really good at communicating details (like my interviewer's Linkedin profile so I could prepare), providing timely feedback, and coaching me throughout the process. I really felt Roku HR were there to help me succeed through the process and cared about me as a potential employee and not just as a person to fill a position. Overall great communication from HR, very organized interviewing process with clear expectations and timely feedback.