SAC Engineering: ​Mr. Galvez has been an instructor with SAC engineering since 1999.
Degrees/Professional: B.S. UCI, Civil Engineering, UC Irvine, Civil P.E. 
Experience/expertise:Deputy Public Works Director/City Engineer, Fountain Valley, CA (Capital Improvement Program, Sewer Rehabilitation Program, Water Facility Improvement Program, Traffic Engineering, and Development Review), public works/Traffic Dept.), over 22 years.
Activities/Service: voting member OCTA TAC, Co-Chair APWA Green Book Standard Plans Committee, Co-Chair Work Area Traffic Control Handbook (WATCH) Committee, Adjunct Professor UC Berkeley Dept. ITS, University Of California, Berkeley Extension
Courses Taught: Engr 100A, 100B, 112, 183, 184, 142 ​

SAC Engineering: Mr. Castellanos has been an instructor with SAC Engineering since 2010.
(he also teaches Public Works at Santiago Canyon College)
Degrees/Professional:  BS (Civil Engineering), MS Construction Engineering (CSUF), Civil PE (CA),

Experience/expertise: Principal Civil Engineer in the Design Engineering Section for the City of Anaheim, 14 years experience in the public sector, Assistant City Engineer for the City of Rancho Santa Margarita

Activities/Service: Member APWA, Board of Directors, Co-Chair of the Scholarship Committee and participates in the Greenbook Committee for the Southern California Chapter. Emerging Leader for the Public Section (2014).​​
Courses Taught: Engr 100B, 112, 183, 184, 186.