UChicago Argonne LLC · Lemont, Illinois
Case #I-200-22131-161258
In FY2022, UChicago Argonne LLC sought H-1B sponsorship for a Assistant Computational Mathematician in Lemont, Illinois at $80k per year, which is 33% above the prevailing wage of $60k. The case was processed in 0 days during the FY FY2022 cycle. This position is for continued employment. The filing covers 5 positions.
| Case Number | I-200-22131-161258 |
| Case Status | Withdrawn |
| Visa Class | H-1B |
| Fiscal Year | FY 2022 |
| Employer | UChicago Argonne LLC |
| Employer Location | Lemont, Illinois |
| Job Title | Assistant Computational Mathematician |
| SOC Code | 15-202100 – Mathematicians |
| Worksite | Lemont, Illinois |
| Annual Wage | $80k – $144k |
| Prevailing Wage | $60k |
| Wage Premium | +32.5% |
| Positions | 5 (2 new, 1 continued) |
| Job Title | Salary | Status | Date |
|---|---|---|---|
| Materials Scientist | $110k | CERTIFIED | Sep 22, 2025 |
| Materials Scientist | $90k | CERTIFIED | Sep 22, 2025 |
| Physicist | $122k | CERTIFIED | Sep 22, 2025 |
| Postdoctoral Appointee | $71k | CERTIFIED | Sep 18, 2025 |
| Assistant Structural and Molecular Biologist | $90k | CERTIFIED | Sep 18, 2025 |
This Labor Condition Application (LCA) was filed by UChicago Argonne LLC for the position of Assistant Computational Mathematician in Lemont, Illinois. The offered annual salary is $80k, compared to the prevailing wage of $60k for this occupation and location. This represents a wage premium of +32.5% above the prevailing wage.
The LCA is the first step in the H-1B visa process. Employers must file an LCA with the Department of Labor certifying that they will pay the foreign worker at least the prevailing wage for the occupation in the area of intended employment. A certified LCA is required before the employer can file an H-1B petition with USCIS.
Case status: Withdrawn. This means the employer or their representative withdrew the application.
A Labor Condition Application (LCA) is a mandatory document that U.S. employers must file with the U.S. Department of Labor (DOL) before they can petition for a foreign worker under the H-1B, H-1B1, or E-3 visa categories. The LCA process was established under the Immigration and Nationality Act (INA) to protect both foreign and domestic workers by ensuring fair wages and working conditions.
When a U.S. company identifies a foreign national to fill a specialty occupation position, they must first obtain DOL certification through the LCA process before filing the H-1B petition (Form I-129) with U.S. Citizenship and Immigration Services (USCIS). In this case, UChicago Argonne LLC filed LCA case number I-200-22131-161258 to sponsor a Assistant Computational Mathematician position at their worksite in Lemont, Illinois. By filing this LCA, the employer attests to four key conditions: (1) paying the higher of the actual wage or prevailing wage, (2) providing working conditions that will not adversely affect other similarly employed workers, (3) no strike or lockout at the worksite, and (4) providing notice of the filing to the bargaining representative or posting notice at the worksite.
The DOL establishes four wage levels for each occupation and geographic area, representing the progression from entry-level to fully competent workers:
For this filing, the offered wage of $80k compares to the DOL prevailing wage of $60k for Mathematicians positions in the Lemont, Illinois area. The positive wage premium of +32.5% indicates the employer is offering above the DOL-determined average for this occupation and location.
The prevailing wage is the average wage paid to similarly employed workers in a specific occupation in the area of intended employment. The DOL determines prevailing wages using data from the Occupational Employment and Wage Statistics (OEWS) survey conducted by the Bureau of Labor Statistics (BLS). Employers must pay H-1B workers the higher of the prevailing wage or the actual wage paid to other employees in similar positions at the company. This requirement is designed to prevent employers from using H-1B workers to undercut domestic wages.
A "Certified-Withdrawn" status means this LCA was initially certified by the DOL but was later withdrawn by the employer. This can happen for various reasons: the foreign worker may have declined the position, found employment elsewhere, the employer may have decided to refile with updated information, or business conditions may have changed. A withdrawal does not negatively affect the employer's ability to file future LCAs.
The offered salary of $80k for this Assistant Computational Mathematician position provides a data point for evaluating compensation trends in H-1B visa sponsorship. When reviewing H-1B salary data, consider that wages vary significantly based on geographic location, employer size, industry sector, and the worker's experience level. This position falls under SOC code 15-202100 (Mathematicians), which standardizes how the Bureau of Labor Statistics classifies occupations across industries. Metropolitan areas like New York, San Francisco, and Seattle typically command higher salaries due to higher costs of living, while positions in smaller markets may offer lower nominal wages but comparable purchasing power.
This LCA covers 5 positions (2 new hires, 1 continued employment), indicating that UChicago Argonne LLC has multiple openings for this role. Multi-position LCAs are common among larger employers who need to hire several workers for the same job classification and location.
The offered annual salary for this Assistant Computational Mathematician position at UChicago Argonne LLC is $80k to $144k. The Department of Labor prevailing wage for this occupation and location is $60k. The offered wage represents a +32.5% premium over the prevailing wage.
This H-1B filing is for a position located in Lemont, Illinois. The employing company, UChicago Argonne LLC, is headquartered in Lemont, Illinois.
This Labor Condition Application is filed under the H-1B visa classification. The H-1B visa is designed for specialty occupation workers who possess at least a bachelor's degree or equivalent in a specific field related to the job.
The employer for this filing is UChicago Argonne LLC, located in Lemont, Illinois. UChicago Argonne LLC filed this Labor Condition Application (case number I-200-22131-161258) for a Assistant Computational Mathematician position during fiscal year FY 2022. View all UChicago Argonne LLC H-1B filings.
Certified-Withdrawn means this LCA was initially certified by the DOL but was subsequently withdrawn by the employer or their authorized representative.