Lead Mainframe Engineer
Quick facts
- Pay
- $78/hr
- Type
- Full-time
- Location
- Dallas, TX
- Industry
- Information Technology — 671 open jobs
- Visa in listing
- H-1B, OPT
- Apply
- Free to apply — never pay anyone for a job offer or visa sponsorship
Job description
Job Title : Lead Mainframe Engineer Location : Dallas, TX Duration: 12 Months Bill Rate: $78/hr. on C2C Client: To Be Discussed Later Job type: W2-Contract Work Authorization: US-Citizen, H-1B, OPT-EAD, GC-EAD
Job Description: Client is seeking a Lead Software Engineer to join the Safe Deposit Box Modernization team supporting the Safe Deposit Box Mainframe System of Record Application. This role will be critical in helping to evaluate, plan, and support our mainframe modernization, including responsibly using approved artificial intelligence (AI) tools to accelerate application discovery, code and dependency analysis, technical documentation, solution design, modernization planning, code development, and test creation. The engineer will apply appropriate human review, validation, security, data protection, and risk controls to AI-assisted outputs to help preserve business logic, improve delivery efficiency, and reduce implementation risk. This role will analyze, design, and develop strategic technical solutions and interface with enterprise systems of record, architecture, frontend channels, and middleware servicing applications. This role also supports resolving issues, testing coded solutions, locating, or creating test data for end-to-end testing with partners, performing production research to resolve reported issues or assist other team members, and validating implemented solutions in production to confirm successful outcomes.
Equal Opportunity Employer: We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.
Visa sponsorship record: Quantum Technologies LLC
Sponsors actively| Fiscal year | H-1B LCAs | USCIS approvals | USCIS denials | PERM |
|---|---|---|---|---|
| FY2026 | 14 | 16 | 2 | — |
| FY2025 | 56 | 5 | 0 | 2 |
| FY2024 | 3 | 5 | 0 | — |
This exact kind of role (Engineers, All Other) isn't among the roles Quantum Technologies LLC sponsored most often.
Roles they sponsor most
- data engineer4 LCAs · median $99k
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- application developer java full stack2 LCAs · median $95k
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Which visas can work for this job
Occupation: Engineers, All Other (SOC 17-2199) — estimated from the job title.
- Mentioned in the listing
H-1B, OPT
- H-1B cap-exempt employer
Regular cap-subject employer — a new H-1B needs to win the lottery in March (unless you already hold cap-counted H-1B status).
- TN (citizens of Canada and Mexico)
This kind of role may fit the USMCA profession “Engineer” — it depends on the actual duties. No lottery, no cap; you need the matching degree or license.
- E-3 (Australia) and H-1B1 (Chile, Singapore)
Same degree requirement as H-1B, but no lottery and a separate quota that is rarely filled.
- O-1 (extraordinary ability)
For candidates with awards, publications, press, a high salary or critical roles at distinguished organizations. No cap, no lottery; the employer files a petition.
- STEM OPT extension (F-1 students)
Requires an E-Verify employer. We didn't find this company in the E-Verify list — ask HR.
- Green card (EB-2 / EB-3 via PERM)
Filed 2 PERM labor certifications: they have a track record of sponsoring permanent residence.
Salary vs prevailing wage
Level IV (fully competent)Engineers, All Other · Dallas-Fort Worth-Arlington, TX. Annual prevailing wages set by the Department of Labor (OFLC).
| Level | Prevailing wage | H-1B lottery odds* |
|---|---|---|
| Level I | $71,386 | ~15% |
| Level II | $93,870 | ~31% |
| Level III | $116,334 | ~46% |
| Level IV | $138,819 | ~61% |
This job pays $162,240 a year (converted from an hourly rate, 2,080 hours) — that's Level IV (fully competent). In the wage-weighted H-1B lottery a Level IV registration gets 4 entries; estimated selection chance about 61% — better than average.
* Odds are DHS projections for the FY2027 wage-weighted lottery (actual results vary by year and employer). Since the FY2027 cap season the H-1B lottery is weighted by wage level: Level I = 1 entry, II = 2, III = 3, IV = 4. The level is set by the offered wage against the prevailing wage for the occupation and worksite. Separately, a $100,000 fee for new H-1B petitions for workers outside the US was announced in 2025; as of September 2026 a federal court ruling keeps it unenforceable while appeals continue — check the current status.
Sources: U.S. Department of Labor OFLC disclosure data (H-1B/H-1B1/E-3 LCA, PERM), OFLC prevailing wage data, USCIS H-1B Employer Data Hub, E-Verify participating employers. Data loaded: LCA FY2024–FY2026, PERM, USCIS Data Hub, OFLC wages; updated 2026-10-03. Employers are matched by name, so records of companies with similar names can occasionally be mixed up. This is general information, not legal advice — talk to an immigration attorney about your case.