Peter is a Principal Architect in Percona's consulting team. He has been using and working with open source software from early 2000s. Peter's first and foremost professional interest is performance tuning and large scale automation. Before rejoining Percona, Peter worked on large scale MySQL issues of Silicon Valley companies. Before joining Percona the first time, among many other things, he worked at Sun Microsystems, specialized there in performance tuning and was a DBA at Hungary's largest social networking site. He also taught many Oracle University MySQL courses. He currently lives in Debrecen, Hungary, with his wife and kids.