LANCASTER – Pedro Rivera, who has been education secretary since 2015, will become the next president of Thaddeus Stevens College of Technology in Lancaster. The school’s board of trustees voted unanimously Tuesday to appoint Rivera to the position. Rivera succeeds Dr. William Griscom, who retired in January after 23 years as president of the school. Trustees said Rivera will continue the school’s mission of educating and impacting the lives of economically and socially under-served students and their families. Rivera begins his new job Oct. 1. Gov. Tom Wolf said he will nominate Noe Ortega to replace Rivera. Ortega is currently the Department of Education Deputy Secretary of Postsecondary and Higher Education.