Before joining the New Testament faculty of Trinity Evangelical Divinity School in 2016, Dr Bryan served as a missionary in Ethiopia for more than 23 years with SIM. He was the first dean of studies of the Ethiopian Graduate School of Theology and taught for many years at the Evangelical Theological College in Addis Ababa. From 2009–2015 he served as the director of SIM Ethiopia. In this role he led the work of missionaries and ministry staff from Europe, Australasia, Africa, and North America in a wide variety of church planting, disciple-making, leadership development, and compassion ministries. Bryan also served as part of the Ethiopian delegation to the Third Lausanne Congress on World Evangelization in Cape Town, South Africa.
Bryan completed his PhD in New Testament at Cambridge University. His second book, Cultural Identity and the Purposes of God: A Biblical Theology of Ethnicity, Nationality, and Race was published by Crossway in 2022. He is currently working on a commentary on the Gospel of John.