Following his ordination, Ramirez became the vocations director for his congregation in the Philippines. He then served as administrator, treasurer and vice-rector at
Rogationist College in
Cavite City. In 2003, he moved to
Rome to complete licentiate studies in spirituality and earn a diploma in social communications from the
Pontifical Gregorian University. He returned to the Philippines in 2006 and served in various roles within the Rogationists. Ramirez moved to Australia in 2015 and served in the parishes of
West Footscray,
Maidstone and
Braybrook within the
Archdiocese of Melbourne. In 2023, he moved to the
Diocese of Sandhurst to help his religious order establish a presence there. ==Episcopal ministry==