Why Employment Drives Legal Immigration to the United States

Legal immigration to the United States remains the most well-traveled road for professionals seeking predictability, legal stability, and long-term prospects. Among all the motivations that lead foreigners to settle on American soil, work consistently emerges as the primary driver — not as a trend, but because the U.S. immigration system was historically designed to attract qualified human capital. Understanding that design is the first step for anyone looking to build an international career without risky shortcuts.

The numbers reinforce this reality. According to the Yearbook of Immigration Statistics published by the Department of Homeland Security, employment-related reasons account for approximately 45% of lawful permanent admissions in recent years — a proportion nearly twice that of immigrants arriving to study. In other words, roughly five out of every eleven legal permanent residents cross the U.S. border with a professional tie already formalized or in the process of being formalized.

What the Official Data Show

A review of U.S. federal reports reveals a clear hierarchy of motivations. The employment-based categories (EB-1 through EB-5) concentrate the largest share of professionally driven green cards, followed by family-based visas and, more distantly, study, asylum, and the diversity lottery program.

This distribution is not accidental. Congress sets an annual cap of approximately 140,000 employment-based green cards, divided among five preference categories — a number that rises when unused balances from family categories become available. The result is a stable, predictable channel for skilled professionals, though subject to per-country backlogs in some cases.

Why Work Leads the Line

A Hot Market and Sector-Level Shortages

The Bureau of Labor Statistics, through its JOLTS (Job Openings and Labor Turnover Survey), reports that the U.S. economy has operated for years with a significant volume of open positions, with sectors such as technology, healthcare, engineering, data science, and construction recording structural labor shortages. This imbalance favors foreign nationals with technical training, proven experience, and the ability to demonstrate a differentiated contribution.

Salary Differential and Purchasing Power

Careers in technology, life sciences, engineering, and finance offer substantially higher compensation in the U.S. than in emerging markets, even accounting for differences in cost of living. Platforms such as the Bureau of Labor Statistics, Glassdoor, and Levels.fyi show, as of mid-2025, median salaries for software engineers ranging from $120,000 to $180,000 annually in hubs like San Francisco, Seattle, New York, and Austin. Physicians, dentists, and pharmacists also rank among the highest-paid occupations in the country.

Legal Security Through Lawful Entry

At the same time, the U.S. immigration environment has been marked by intensified enforcement, expanded detentions, and accelerated removals. This landscape makes irregular entry even riskier and more costly, reinforcing the calculus of those who might otherwise have considered informal pathways. For established professionals, the effort to plan a legal route — even if it takes 12 to 36 months — translates into protection from deportation, broad work authorization, and the right to sponsor family members.

The Main Work Visas and Green Cards

The U.S. system organizes professional pathways into two broad families: temporary nonimmigrant visas and permanent immigrant categories. Understanding both is essential for choosing the right entry point.

EB-1: Extraordinary Ability and Executives

This category is reserved for professionals with sustained international recognition, outstanding professors and researchers, and executives transferred by multinational corporations. It does not require labor certification (PERM) and, for nationals of countries without a backlog, tends to be one of the fastest routes to a green card.

EB-2 and EB-2 NIW: Advanced Professionals

Designed for holders of advanced degrees or individuals of exceptional ability. The NIW (National Interest Waiver) modality waives the formal job offer and the PERM process, provided the petitioner demonstrates that their work serves a substantial national interest — a standard established by the precedent decision Matter of Dhanasar (2016) and reinforced by subsequent USCIS guidance.

EB-3: Skilled Workers with a Job Offer

Open to professionals with a bachelor’s degree, skilled workers with more than two years of experience, and, on a smaller scale, unskilled workers (other workers). It requires a formal job offer, PERM labor certification, and employer sponsorship.

EB-5: Investors

Designed for those who invest capital in a new commercial enterprise in the United States, creating jobs for American workers. Investment minimums, adjusted by the EB-5 Reform and Integrity Act of 2022, remain at $800,000 for targeted employment areas and $1,050,000 outside them.

Strategic Nonimmigrant Visas

For those not yet positioned for a direct immigrant route, visas such as H-1B (specialty occupations), L-1 (intracompany transfer), O-1 (temporary extraordinary ability), and TN (Mexican and Canadian nationals under USMCA) serve as entry points and, in many cases, precede a future green card petition.

Who Is Leaving Brazil

The profile of economic immigrants has shifted in recent years. The predominance of manual labor has given way to a growing share of professionals with graduate degrees, technical leads, physicians, dentists, engineers, and researchers. Department of State data shows a steady increase in the number of EB-1 and EB-2 visas issued to Brazilians over recent cycles, reflecting both the maturation of the specialized immigration advisory market and the increasing internationalization of Brazilian careers.

Among the most recurring profiles are software engineers and cloud solutions architects, artificial intelligence and machine learning specialists, physicians with scientific publications, dentists with recognized graduate credentials, applied sciences researchers, aviation professionals, high-performance athletes, and entrepreneurs with demonstrated traction.

The Engine Behind the Decision

The decision to emigrate rarely rests on a single factor. It typically combines professional advancement, access to research and development infrastructure, more predictable public safety, the quality of the education system for children, economic stability, and a strong currency. To these elements are added personal motivations — proximity to global markets, exposure to international innovation networks, and quality of life in specific regions.

On the other side of the equation, the country of origin does not always offer the environment needed to retain these talents. Below-adequate public investment in science, stagnant salaries in technical fields, and bureaucratic hurdles to entrepreneurship are factors that frequently appear in the accounts of those who decide to leave.

The Cost of Brain Drain

Every highly qualified professional who emigrates represents a net transfer of human capital. Studies by the Center for Strategic Studies and Management (CGEE) and academic surveys point to a significant outflow of Brazilian scientists to North American universities and research centers over recent decades, with a direct impact on knowledge production, graduate education quality, and local innovation pipelines.

Planning Is What Separates Approval from Denial

The U.S. immigration system is technically demanding. Choosing the wrong category, submitting incomplete documentation, or presenting a poorly constructed narrative are frequent causes of Requests for Evidence (RFE), Notices of Intent to Deny (NOID), and denials. Some recurring mistakes include:

• Applying for a category incompatible with the applicant’s profile — for example, pursuing EB-1A without evidence of sustained recognition, when the case would be better suited to EB-2 NIW.
• Underestimating the importance of the evidence package in categories that require a robust narrative.
• Failing to account for the impact of the Visa Bulletin on the total time to a green card, especially for nationals of countries experiencing retrogression.
• Overlooking the tax implications of U.S. fiscal residency, which begins with the substantial presence test or upon adjustment of status.

What to Expect in the Coming Months

The regulatory landscape continues to evolve. USCIS filing fees were updated in the Final Rule published in 2024, adjusting amounts for various petitions, including I-140, I-129, I-485, and I-765. Processing times published at egov.uscis.gov/processing-times fluctuate monthly and should be consulted before any strategic decision. The Department of State’s Visa Bulletin, updated month by month, remains the reference for tracking each category’s queue by country of chargeability.

For professionals planning to pursue this route, planning begins long before the petition: it involves the systematic building of a portfolio, publications, sector recognition, document organization, and, where applicable, selecting the right sponsoring employer. Those who approach the process as a career project — rather than an administrative request — tend to arrive at the consular interview or adjustment of status with a comfortable margin.

Victoria Harper

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.