HR, manager, sales team, tech consultants then partner will interview you. Only three rounds, not too difficult. Be prepared with industry related questions. Fluency in technical terms will be huge value add.
I applied online. I interviewed at GreySpark (London, England) in Jun 2017
Interview
I applied online and was invited to a telephone screening interview followed by 3 face-to-face interviews. The interviewers came across very knowledgeable. HR was very approachable and managed the interview process well.