Assistant Professor di Fakultas Teologi Universitas Notre Dame, USA, Owner KEPITING++. Beberapa karyanya: "Islam Revisionis: Kontestasi Agama Zaman Radikal" (Suka Press, 2018), "Polemik Kitab Suci: Tafsir Reformis atas Kritik Al-Quran terhadap Agama Lain" (Gramedia, 2013), "Kontroversi Islam Awal: Antara Mazhab Tradisionalis dan Revisionis" (Mizan, 2015), dan "Scriptural Polemics: The Qur’an and Other Religions" (Oxford University Press, 2014).