Shortly after law school, Raben clerked for the Supreme Court of Mississippi and taught Law at the University of Miami before he joined the firm Arnold & Porter as an associate specializing in international trade, federal lobbying, and white-collar criminal defence.

[6] Raben oversaw Attorney General Janet Reno's legislative initiatives and handled congressional oversight of the Department.

[2] He received a unanimous confirmation vote for this position along with an endorsement from the Senate Judiciary Committee's Republican subcommittee chairs.

He acted as chief lobbyist and strategist on intellectual property, federalism, tort reform, and cybercrime issues.

[10] Notable issues or clients have included: Since 1995, Raben has chaired both the Hispanic National Bar Association's (HNBA) D.C. Foundation and Endorsement Committee.