Old Spanish Missions, Inc. (Las Misiones) is a nonprofit dedicated to preserving the four-18th century Spanish Colonial Mission churches in San Antonio. The Development & Program Manager (“Manager”) reports directly to the Executive Director and provides leadership in program development, donor relations, grants, budget oversight, and operational coordination. The Manager plays a pivotal role in advancing fundraising initiatives, cultivating donors and sponsors, managing grants and the docent program while coordinating with parishes, architects, contractors, and civic partners. This position requires strategic thinking, independent judgment, and strong organizational skills to ensure Las Misiones’ mission and preservation priorities are effectively advanced.