| Springer, Charles | Management Analyst, Senior | Municipal Operations | 949-718-3466 | |
| Santibanez, Erick | Maintenance Worker | Municipal Operations | 949-718-3463 | |
| Sanchez, Yair | Maintenance Worker | Municipal Operations | 949-718-3461 | |
| Saldivar, Humberto | Concrete Finisher | Municipal Operations | 949-718-3461 | |
| Saldana Iii, Ernest | Public Works Crew Chief | Municipal Operations | 949-718-3478 | |
| Salazar, Juan | Superintendent | Municipal Operations | 949-718-3460 | |
| Suzuki, Tracy | Records Specialist | Public Works | 949-644-3343 | |
| Schweitzer, Theresa | Public Works Finance/Administrative Manager | Public Works | 949-644-3335 | |
| Sanchez, Jessica | Permit Technician II | Public Works | 949-644-3041 | |
| Seo, Leah | Office Assistant | Public Works | 949-644-3331 | |
| Shane, Samuel | Contractor | Public Works | | |
| Shaffer, Sterling | Contractor | Public Works | | |
| Sanabria, Philip | Contractor | Public Works | | |
| Smouse, Trevor | Management Analyst, Senior | Public Works | 949-644-3325 | |
| Silva, Robert | Construction Inspection Supervisor | Public Works | 949-270-8131 | |
| Sinacori, Michael | Assistant City Engineer | Public Works | 949-644-3342 | |
| Sandefur, Thomas | Assistant City Engineer | Public Works | 949-644-3321 | |
| Suarez, Christian | Facilities Maintenance Worker II | Recreation & Senior Services | 949-644-3244 | |
| Strozier, Savannah | Recreation Coordinator, Assistant | Recreation & Senior Services | | |
| Stinson, Mariah | Administrative Assistant | Recreation & Senior Services | 949-644-3158 | |
