Matthew Rubenstein serves as a National Capital Resource Counsel with the Federal Death Penalty Resource Counsel Project, a program of the Administrative Office of the United States Courts. Rubenstein provides training and consultation to federal public defenders and CJA panel attorneys throughout the country with pending or potential trial-level capital cases and direct representation to federal trial-level capital defendants.

Rubenstein was the founding director of the Oregon Capital Resource Center, where he provided direct representation in capital cases, as well as litigation assistance, consultation, and training to capital defense teams in pretrial, trial, appellate, and post-conviction litigation. Rubenstein previously represented capital clients at the Georgia Capital Defender and the Louisiana Crisis Assistance Center. Rubenstein has served as counsel in death penalty cases in Louisiana, Georgia, Texas, Oregon, and federal court. Rubenstein has conducted Morgan method life-qualification voir dire in over a dozen capital cases, provided consultation to capital defense teams in jurisdictions across the United States, and lectures frequently on death penalty litigation, capital voir dire, and criminal justice issues. Rubenstein has also worked as a public defender at the Federal Public Defender in Portland and the Defender Association in Seattle. Rubenstein lives in Portland, Oregon.