John Mayall
University of Waterloo/Systems Integration Specialist
2025 Salary
$138,325Total compensation $139,001, including $676 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
#1,401University of Waterloo
Years on List
102016–2025
Peak Salary
$138,3252025
Full 2025 roster at University of Waterloo →·See where $138,325 ranks →
Total Compensation History
Full History
2016–2025
$105,099 in 2016 is worth about $134,402 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Systems Integration SpecialistUniversity Of Waterloo | $138,325 |
| 2024 | Systems Integration SpecialistUniversity Of Waterloo | $134,062 |
| 2023 | Systems Integration SpecialistUniversity Of Waterloo | $128,857 |
| 2022 | Systems Integration SpecialistUniversity Of Waterloo | $122,607 |
| 2021 | Systems Integration SpecialistUniversity Of Waterloo | $120,571 |
| 2020 | Systems Integration SpecialistUniversity Of Waterloo | $118,029 |
| 2019 | Systems Integration SpecialistUniversity Of Waterloo | $114,473 |
| 2018 | Systems Integration SpecialistUniversity of Waterloo | $111,055 |
| 2017 | Systems Integration SpecialistUniversity of Waterloo | $108,098 |
| 2016 | Systems Integration SpecialistUniversity of Waterloo | $105,099 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on John Mayall's 2025 salary of $138,325 comes to roughly $97,261 once federal and Ontario income tax (about 25.7% effective) is deducted. That is about 23% above the 2025 median of $112,818 for Systems Integration Specialist on the Sunshine List. Compared with 2024, when the figure was $134,062, that is a rise of about 3%. Members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less after pension contributions, which this estimate leaves out.
- Estimated net pay
- ~$97,261
- Effective income-tax rate (excl. CPP/EI)
- ~25.7%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~29.7%
- vs. 2025 Systems Integration Specialist median
- +23%
Where does $138,325 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.