Marson Mao
City of Toronto/Senior Systems Integrator Technology Services
2025 Salary
$165,873Total compensation $166,819, including $947 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2025
Employer Rank
#1,655City of Toronto
Years on List
162010–2025
Peak Salary
$165,8732025
Full 2025 roster at City of Toronto →·See where $165,873 ranks →
Total Compensation History
Full History
2010–2025
$109,360 in 2010 is worth about $154,137 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Senior Systems Integrator Technology ServicesCity Of Toronto | $165,873Benefits $947Total $166,819 |
| 2024 | Senior Systems Integrator Technology ServicesCity Of Toronto | $153,198Benefits $912Total $154,110 |
| 2023 | Senior Systems Integrator Technology ServicesCity Of Toronto | $143,909Benefits $1,011Total $144,920 |
| 2022 | Senior Systems Integrator Technology ServicesCity Of Toronto | $138,036Benefits $947Total $138,983 |
| 2021 | Senior Systems Integrator Technology ServicesCity Of Toronto | $130,265Benefits $936Total $131,202 |
| 2020 | Senior Systems Integrator Technology ServicesCity Of Toronto | $136,230Benefits $907Total $137,136 |
| 2019 | Senior Systems Integrator, Information TechnologyCity Of Toronto | $134,559Benefits $2,710Total $137,269 |
| 2018 | Manager Application ServicesCity of Toronto | $140,680Benefits $1,655Total $142,335 |
| 2017 | Senior Systems Integrator 311City of Toronto | $145,500Benefits $879Total $146,379 |
| 2016 | Senior Systems Integrator 311City of Toronto | $118,172Benefits $863Total $119,035 |
| 2015 | Senior Systems Integrator 311City of Toronto | $115,158Benefits $835Total $115,993 |
| 2014 | Senior Systems Integrator 311City of Toronto | $120,753Benefits $801Total $121,555 |
| 2013 | Senior Systems Integrator 311City of Toronto | $109,497Benefits $769Total $110,265 |
| 2012 | Senior Systems Integrator 311City of Toronto | $101,366Benefits $679Total $102,045 |
| 2011 | Senior Systems Integrator, Information TechnologyCity of Toronto | $109,697Benefits $639Total $110,335 |
| 2010 | Senior Systems Integrator, Information TechnologyCity of Toronto | $109,360Benefits $604Total $109,965 |
Take-Home Pay
(After Tax) · 2025 estimate
In 2025, Marson Mao's $165,873 salary works out to roughly $112,621 after income tax, CPP and EI — an all-in deduction rate of about 32.1%. Among those listed as Senior Systems Integrator Technology Services in 2025, the median was $137,320; this salary sits about 21% above it. Marson Mao has appeared on the list 16 times since 2010. Most Municipalities & Services employees belong to OMERS, so actual take-home is likely another 7–10% lower after pension contributions.
- Estimated net pay
- ~$112,621
- Effective income-tax rate (excl. CPP/EI)
- ~28.8%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~32.1%
- vs. 2025 Senior Systems Integrator Technology Services median
- +21%
Where does $165,873 rank on the Sunshine List? →
Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.