I applied through an employee referral. The process took 2 days. I interviewed at DeNA (San Francisco, CA)
Interview
Was very laid back but covered a lot of technical ground. From basic sysadmin skills (Grep, bash, network tools, etc), to protocol discussions (smtp, snmp, TLS, tcp/ip, http/s). Mostly discussed previous roles and responsibilities and how experience could fit into the current role. Discussed company culture (wholly owned subsidiary of a Japanese parent company)