Sallye has extensive experience in international and U.S. government relations for the telecommunications industry. She has negotiated and secured authorizations and license agreements for telecommunications projects from foreign governments around the world, and has negotiated and drafted mergers and acquisitions, operating, and service agreements with commercial and government entities globally. On behalf of the US government, she negotiates Host Nation Agreements (HNAs) with foreign governments to allow US military and government networks to operate in host nations.

Before joining Mintz, Sallye was a partner at another prominent national law firm, where she practiced in the telecommunications, corporate, government relations, and international business groups. Earlier, she spent a dozen years leading international market access and government affairs teams for prominent satellite companies and broadband projects, including Intelsat, PanAmSat, Teledesic, ICO Global, and Iridium.

Sallye has given seminars on HNAs and foreign licensing of DOD networks to the US Department of Defense (DOD) and at military conferences. She has also been a guest lecturer on space law and international law at John Hopkins School of Advanced International Studies, the University of Richmond Law School and the Catholic University of America Law School. Sallye frequently speaks about regulatory and licensing issues at industry events around the world and at various seminar and conference proceedings, and she also has written about these issues in Space News and other newspapers, APT Journal, and the FCBA International Law Journal.