Christofferson oversees all aspects of AECOM’s global legal function, including risk management. Christofferson joins AECOM from O’Melveny & Myers, LLP, where she most recently was managing partner of the Los Angeles office. She joined the firm in 1993 as an associate and became a partner in 2001, ultimately becoming managing partner of the Los Angeles office in 2008. During her tenure at O’Melveny & Myers, Christofferson successfully represented clients in a number of industries, including power, energy and oil and gas. Previously, Christofferson earned her juris doctor from Yale Law School and began her career as a judicial clerk for the Honorable W. Matthew Byrne, Jr., of the U.S. District Court, Central District of Los Angeles. She was also co-owner of the Los Angeles Sparks Women’s National Basketball Association team. Currently, she is board chair of the Los Angeles Library Foundation and a member of the Young Presidents’ Organization, among other community organizations.