| Sanchez, Eric | Firefighter 112 Hours | Fire | 949-644-3113 | |
| Salazar, Arthur | Firefighter Paramedic 112 Hour (On Or After 1-1-2016) | Fire | 949-644-3113 | |
| Summerhill, Yolanda | Assistant City Attorney | City Attorney | 949-644-3135 | |
| Schilling, Chloe | Recreation Coordinator | Recreation & Senior Services | 949-644-3154 | |
| Stinson, Mariah | Administrative Assistant | Recreation & Senior Services | 949-644-3158 | |
| Schmillen, Justin | Deputy Recreation & Senior Services Director | Recreation & Senior Services | 949-644-3160 | |
| Soto Valladolid, Felipe | Recreation Coordinator | Recreation & Senior Services | 949-644-3163 | |
| Stadlman, Ryan | IT Analyst, Senior | City Manager | 949-644-3189 | |
| Suarez, Christian | Facilities Maintenance Worker II | Recreation & Senior Services | 949-644-3244 | |
| Sanchez, Chris | Building Inspector, Principal | Community Development | 949-644-3266 | |
| Skarin, Eric | Civil Engineer - Plan Check, Senior | Community Development | 949-644-3270 | |
| Schank, Deborah | Administrative Assistant | Community Development | 949-644-3284 | |
| Shelton, Chad | Building Inspector II | Community Development | 949-644-3295 | |
| Setter, Gracie | Human Resources Specialist | Human Resources | 949-644-3304 | |
| Sannella, Emily | Human Resources Specialist (HRis) | Human Resources | 949-644-3310 | |
| Sandefur, Thomas | Assistant City Engineer | Public Works | 949-644-3321 | |
| Smouse, Trevor | Management Analyst, Senior | Public Works | 949-644-3325 | |
| Seo, Leah | Office Assistant | Public Works | 949-644-3331 | |
| Schweitzer, Theresa | Public Works Finance/Administrative Manager | Public Works | 949-644-3335 | |
| Sinacori, Michael | Assistant City Engineer | Public Works | 949-644-3342 | |
