| Atherton, Sarah | Department Assistant | Library - City | 949-717-3874 | |
| Aube, Kyle | Civil Engineer, Associate | Public Works | 949-644-3296 | |
| Aman, Matthew | Public Works Inspector I | Public Works | 949-718-1850 | |
| Almendralo, Rodi | Civil Engineer, Associate | Public Works | 949-644-3334 | |
| Arciniega, Patrick | Civil Engineer, Senior | Public Works | 949-644-3347 | |
| Arechiga, Samuel | Equipment Operator I | Public Works Municipal Operations | 949-718-3463 | |
| Auger, Michael | Public Works Supervisor | Public Works Municipal Operations | 949-718-3463 | |
| Acuna, Perry | Public Works Crew Chief | Public Works Municipal Operations | 949-718-3478 | |
| Alvarez, Emily | Recreation Leader | Recreation | | |
| Alam, Syed Adrian | Pool Swim Instructor | Recreation | | |
| Appeldorn, Gavin | Pool Swim Instructor | Recreation | | |
| Aguilar, Miliana | Pool Swim Instructor | Recreation | | |
| Anderle, Robert | Recreation Leader | Recreation | | |
| Avila, Beatriz | Recreation Leader, Senior | Recreation | | |
| Alexander, Trasara | Recreation Leader, Senior | Recreation | | |
| Avalos, Ashley | Recreation Leader, Senior | Recreation | | |
| Andersen, Leonard | Facilities Maintenance Worker II | Recreation | | |
| Armas, Cesar | Recreation Supervisor | Recreation | 949-270-8109 | |
| Alexander, Brason | Recreation & Senior Services Manager | Recreation | 949-644-3150 | |
| Arciniega, Elizabeth | Recreation Coordinator | Recreation | 949-718-1828 | |
