San Diego-based life sciences and scientific software developer Accelrys reported Monday that Scipio "Max" Carnecchia has joined the company as chief executive officer and president, effective immediately. Carnecchia has also been appointed to Accelrys' board of directors. Carnecchia succeeds Todd Johnson, who had served as interim president and CEO since January. Carnecchia most recently served as president of Interwoven, which Autonomy Corp. acquired earlier this year. Carnecchia has also held vice president-level roles with Xoriant Corp., SmartDB Corp. and Group 1 Software.