Sigma-Aldrich Corporation Software Developers salaries
Median $119,000 across 15 filings, Jul 2023 to Jun 2026.
Calculate take-home pay on the calculator pageMedian
$119,000
Middle 50%
$115,000–$147,500
Filings
15
- Median is 13% below the national median for Software Developers ($136,700).
- Most filings are wage Level III (40%).
- St. Louis, MO-IL has the most filings (13), with a median of $119,000.
Based on 15 filings. Small samples can differ from actual pay ranges.
Salaries by metro
| Metro | Filings | Median |
|---|---|---|
| St. Louis, MO-IL | 13 | $119,000 |
Level I 7%
Level II 20%
Level III 40%
Level IV 27%
Not stated 7%
Take-home pay
| Gross | $119,000 |
| Federal income tax | $17,400 |
| Social Security | $7,400 |
| Medicare | $1,700 |
| State income tax | $4,700 |
| Health insurance (employee share) | $1,400 |
| Take-home per year | $86,500 |
| Take-home per month | $7,200 |
Tax year 2026, single filer.
Local taxes, 401(k), and filing status other than single are not included.
Tax rates checked against IRS, Tax Foundation, and other original sources on Oct 28, 2026.
This is an estimate. Actual taxes depend on your situation. Consult a tax professional before filing.
LCA filings are not hires.
Filed wages are offered base pay, not total compensation.
We did not independently verify the source files. Deduplication and filtering can cause differences from the original data.