Father Gilson serves as the Socius to the Provincial for the Jesuits West Province of the Society of Jesus. He has taught at Jesuit High School in Sacramento; Brophy College Preparatory in Phoenix; Saint Ignatius College Preparatory in San Francisco; and Muffles College in Belize, Central America. He is currently serving on the Jesuit Schools Network Board of Directors and the Holy Cross College Board of Trustees. He has also served on the Board of Trustees for Cristo Rey San José Jesuit High School in San José; Sacred Heart Nativity Schools in San José; Jesuit High School in Sacramento; Brophy College Preparatory in Phoenix; and Saint Ignatius College Prep in San Francisco. He earned a B.S. in biology from Santa Clara University; an M.A. in social philosophy from Loyola University in Chicago; and a M.Div. from the Jesuit School of Theology in Berkeley.