Sergei Marchenko
City of Ottawa/Senior Systems Developer / Integrator
2025 Salary
$114,852Total compensation $115,193, including $341 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
#2,960City of Ottawa
Years on List
82018–2025
Peak Salary
$118,5952022
Full 2025 roster at City of Ottawa →·See where $114,852 ranks →
Total Compensation History
Full History
2018–2025
$109,547 in 2018 is worth about $134,840 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Senior Systems Developer / IntegratorCity Of Ottawa | $114,852 |
| 2024 | Senior Systems Developer/IntegratorCity Of Ottawa | $115,465 |
| 2023 | Senior Systems Developer/IntegratorCity Of Ottawa | $106,792 |
| 2022 | Senior Systems Developer/IntegratorCity Of Ottawa | $118,595 |
| 2021 | Senior Systems Developer/IntegratorCity Of Ottawa | $103,055 |
| 2020 | Senior Systems Developer/IntegratorCity Of Ottawa | $117,790 |
| 2019 | Senior Systems Developer/IntegratorCity Of Ottawa | $103,173 |
| 2018 | Senior Systems Developer/IntegratorCity of Ottawa | $109,547 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Sergei Marchenko's 2025 salary of $114,852 comes to roughly $83,925 once federal and Ontario income tax (about 22.1% effective) is deducted. The 2025 median for Senior Systems Developer Integrator on the list was $114,584, almost exactly this figure. On total compensation of $115,193, Sergei Marchenko ranked #2,960 of 5,181 disclosed at City of Ottawa that year, where the median salary was $117,638. After pension contributions (probably OMERS in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$83,925
- Effective income-tax rate (excl. CPP/EI)
- ~22.1%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~26.9%
- vs. 2025 Senior Systems Developer Integrator median
- about even
Where does $114,852 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.