O'Fallon, MO H-1B salaries — 4,770 certified filings (FY2016–FY2026)
- 485
- Filings · FY2025
- $112k
- Median base · FY2025
- $91k–$124k
- Middle 50% · FY2025
- Mastercard International
- Top sponsor · 1,512 all-time
Employers in O'Fallon, MO have 4,770 certified H-1B LCAs on record since FY2016. In FY2025 the median base salary was $112k across 485 filings, with the middle 50% between $91k and $124k. The biggest sponsors are Mastercard International, Mastercard Technologies, Tech Mahindra Americas; the most-sponsored titles are Senior Software Engineer, Software Engineer, Software Developer.
How much do H-1B workers in O'Fallon, MO make?
Certified base salary by fiscal year: each box is the p25–p75 range, the heavy line the median, the whiskers reach p10–p90. $112k median in FY2025. Base pay only — hover a year for its figures.
How has H-1B hiring in O'Fallon, MO changed?
249 certified filings in FY2016 → 249 in FY2026. The change column is each year against the one before.
| Fiscal year | Filings | vs prior FY | Median base |
|---|---|---|---|
| FY2026 | 249 | −49% | $107k |
| FY2025 | 485 | +54% | $112k |
| FY2024 | 314 | −36% | $110k |
| FY2023 | 491 | −10% | $112k |
| FY2022 | 545 | +31% | $102k |
| FY2021 | 416 | −19% | $91k |
| FY2020 | 512 | −10% | $91k |
| FY2019 | 568 | −1% | $86k |
| FY2018 | 572 | +55% | $84k |
| FY2017 | 369 | +48% | $76k |
| FY2016 | 249 | — | $73k |
Which companies sponsor H-1B workers in O'Fallon, MO?
The employers with the most certified filings, all years, with their median base salary. Open any employer for its full profile.
| # | Employer | Filings | Median base |
|---|---|---|---|
| 1 | Mastercard International | 1,512 | $102k |
| 2 | Mastercard Technologies | 405 | $115k |
| 3 | Tech Mahindra Americas | 331 | $79k |
| 4 | Tata Consultancy Services | 99 | $67k |
| 5 | Altimetrik | 87 | $86k |
| 6 | High Quartile | 66 | $102k |
| 7 | Epam Systems | 52 | $90k |
| 8 | Csc Covansys | 43 | $78k |
| 9 | Compunnel Software Group | 41 | $90k |
| 10 | Cognizant Technology Solutions US | 37 | $78k |
What H-1B jobs get sponsored in O'Fallon, MO?
The most-filed job titles on certified LCAs in this city, all years (DOL titles, pay-grade codes stripped).
| # | Job title | Filings | Median base |
|---|---|---|---|
| 1 | Senior Software Engineer | 440 | $110k |
| 2 | Software Engineer | 336 | $86k |
| 3 | Software Developer | 278 | $86k |
| 4 | Lead Software Engineer | 193 | $137k |
| 5 | Senior Bizops Engineer | 103 | $91k |
| 6 | Lead Software Development Engineer | 103 | $109k |
| 7 | Senior Software Development Engineer | 101 | $91k |
| 8 | Lead Bizops Engineer | 91 | $109k |
| 9 | JAVA Developer | 74 | $86k |
| 10 | Sr. Software Engineer | 67 | $100k |
Common questions about H-1B jobs in O'Fallon, MO
- What is the median H-1B salary in O'Fallon, MO?
- The median certified H-1B base salary in O'Fallon, MO is $112k (FY2025), from 485 filings. Across all years the middle 50% earn between $83k and $110k.
- Which companies sponsor the most H-1B workers in O'Fallon, MO?
- The top H-1B sponsors in O'Fallon, MO are Mastercard International, Mastercard Technologies, Tech Mahindra Americas.
- What are the most common H-1B jobs in O'Fallon, MO?
- The most-sponsored H-1B roles in O'Fallon, MO are Senior Software Engineer, Software Engineer, Software Developer.
- Does a certified LCA mean an H-1B visa was approved?
- No. A Labor Condition Application (LCA) is the Department of Labor attestation an employer must have certified before filing an H-1B petition with USCIS. It records the job, worksite and offered wage, but not whether the petition was filed, selected in the lottery, or approved. Filing counts measure intent to sponsor, not headcount.
- What salary do these figures show?
- The base annual wage offered on the certified LCA, converted to a yearly amount. Bonus, equity, overtime and benefits are not included, so total compensation is typically higher. Figures are medians and percentiles over certified filings; wages above $5,000,000 a year are excluded as data-entry errors.
- What does the fiscal year mean here?
- Years are U.S. government fiscal years, October to September: FY2025 runs from October 1, 2024 to September 30, 2025. This matches how the Department of Labor publishes the disclosure files. The most recent year may be partial until its final quarter is released.
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Source: U.S. Department of Labor, Office of Foreign Labor Certification — certified LCA disclosure data through June 2026 (FY2016–FY2026). An LCA is not an approved visa; pay figures are base salary and exclude bonus and equity. Methodology →