Robert Mainwaring
Ontario Power Generation/Senior Technical Engineer/Officer
2025 Salary
$153,647Total compensation $159,407, including $5,760 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
#5,821Ontario Power Generation
Years on List
152011–2025
Peak Salary
$162,7052023
Full 2025 roster at Ontario Power Generation →·See where $153,647 ranks →
Total Compensation History
Full History
2011–2025
$111,634 in 2011 is worth about $152,881 in 2025 dollars.
Take-Home Pay
(After Tax) · 2025 estimate
Of the $153,647 Robert Mainwaring earned in 2025, roughly $105,893 would remain after income tax, CPP and EI, an all-in deduction rate of about 31.1%. For comparison, the median Senior Technical Engineer/Officer on the 2025 list was paid $155,130; this salary is about 1% less. Compared with 2024, when the figure was $157,080, that is a drop of about 2%. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.
- Estimated net pay
- ~$105,893
- Effective income-tax rate (excl. CPP/EI)
- ~27.5%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~31.1%
- vs. 2025 Senior Technical Engineer/Officer median
- −1%
Where does $153,647 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.