San Mateo County
Is Client Systems Supervisor
William Margach , working as Is Client Systems Supervisor, was employed by San Mateo County in 2025, and received regular pay of $176,095, overtime pay of $2,811, other pay of $1,000, total pay of $179,905, benefits worth $44,995, total compensation of $224,901 including pay and benefits. This compensation was 46 percent higher than the average and 56 percent higher than the median in San Mateo County.
San Mateo County records show William Margach held three jobs from 2019 to 2025.
According to the public records employee's total compensation increased by $7,817 from 2024 to 2025, which is a 3.6 percent rise. Since 2019, the total compensation has increased by $62,604, a total rise of 38.6 percent.
| Year | 2025 |
| Full Name | William Margach |
| Job Title | Is Client Systems Supervisor |
| State | California |
| Employer | San Mateo County |
| Total Compensation | $224,901 |
| Pay Plan |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | San Mateo County |
| Year | 2025 |
| Number of Employees | 7,625 |
| Average Annual Wage | $153,638 |
| Median Annual Wage | $144,109 |
William Margach (2024)Is Client Systems Specialist Senior | View Person Details |
William Margach (2023)Is Client Systems Specialist Senior | View Person Details |
William Margach (2022)Is Client Systems Specialist Senior | View Person Details |
William Margach (2021)Is Client Systems Specialist | View Person Details |
William Margach (2020)Is Client Systems Specialist | View Person Details |
William Margach (2019)Is Client Systems Specialist | View Person Details |
Ana Moran L (2025)Lead Crime Analyst - Unclassified at San Mateo County | View Person Details |
Luis Carrillo F (2025)Is Systems Specialist at San Mateo County | View Person Details |
Marcos Lopez Olivera (2025)Deputy Sheriff at San Mateo County | View Person Details |
James Miller V (2025)Management Analyst at San Mateo County | View Person Details |
Renate Rzepa (2025)Children's Social Services Worker at San Mateo County | View Person Details |
Tenzin Dhedhen (2025)Critical Care Nurse at San Mateo County | View Person Details |
Beverly Motta N (2025)Ambulatory Care Nurse at San Mateo County | View Person Details |
Alejandro Avendano (2025)Sheriff'S Correctional Officer at San Mateo County | View Person Details |
Patricia Merlos-Lopez (2025)Marriage And Family Therapist at San Mateo County | View Person Details |
Ashanti Watson R (2025)Sheriff'S Correctional Officer at San Mateo County | View Person Details |