Mid-level Systems Engineer salary in St. Louis, MO
Based on 12 certified H-1B filings at DOL wage level II in the St. Louis, MO-IL metro area, FY2025–FY2026. Includes O'fallon, Maryland Heights, Saint Louis, St Louis, Ballwin.
Median salary$83,900
Middle 50%$79.1k–$103.3k
vs. all levels here−12%comparison median $95,000
Filings12FY2025–FY2026 · latest two fiscal years
Salary range
All levels here
$60k$70k$80k$90k$100k$110k$120k$130k$140k$150k
| Percentile | Salary |
|---|---|
| 10th | $74,188 |
| 25th | $79,077 |
| 50th (median) | $83,900 |
| 75th | $103,257 |
| 90th | $131,603 |
Salary by year
Median salary
Filings per year
Show as table
| Fiscal year | Median | P25 | P75 | Filings |
|---|---|---|---|---|
| FY2020 | $83,523 | $80,000 | $91,969 | 14 |
| FY2021 | $83,637 | $78,313 | $86,909 | 10 |
| FY2022 | – | – | – | 9 |
| FY2023 | – | – | – | 5 |
| FY2024 | $86,000 | $83,000 | $90,000 | 13 |
| FY2025 | – | – | – | 7 |
| FY2026 | – | – | – | 5 |
Cost of living
St. Louis's median mid-level Systems Engineer salary of $83,900 is worth about $88,200 at national average prices.
Source: BEA Regional Price Parities, 2024 (U.S. = 100; St. Louis = 95.1).
Employers filing at this level
| Employer | Median | Filings |
|---|---|---|
| Randstad | too few | 2 |
Employers with at least 2 filings here. Median shown at 10+ filings.
By experience level
| Wage level | Median | Filings |
|---|---|---|
| Entry-level · Level I | – | 0 |
| Mid-level · Level II | $83,900 | 12 |
| Senior · Level III | too few | 2 |
| Expert · Level IV | – | 0 |
Median shown when a level has at least 10 filings.