(JNS) Former U.S. ambassador to Israel Dan Shapiro has been hired by the U.S. State Department to assist with the indirect negotiations between the United States and Iran in the Biden administration’s attempt to reenter the 2015 Iran nuclear deal.

A State Department official said in an email that the Iran team would benefit from Shapiro’s experience as a high-level diplomat and is the first hire of what the department hopes to become a small group of part-time advisors to add “diversity and perspective on the special envoy’s team.”

Shapiro served as ambassador to Israel during the Obama administration from 2011 to 2017 and since then has served as distinguished visiting fellow at the Institute for National Security Studies at Tel Aviv University and a principal at WestExec Advisors.

While he supported entering the 2015 Iran nuclear deal—the Joint Comprehensive Plan of Action (JCPOA)—he’s seen as a moderate on the topic compared to other figures in the Biden administration, such as Malley, who has drawn criticism over his friendly stances towards Iran.