If you want to work in the U.S. temporarily, under immigration law, you need a specific visa based on the purpose of your travel and type of work you will be doing.
H-1B classification applies to persons in a specialty occupation which requires the theoretical and practical application of a body of highly specialized knowledge requiring completion of a specific course of higher education. This classification requires a labor attestation issued by the Secretary of Labor (65,000). This classification also applies to Government-to-Government research and development, or co-production projects administered by the Department of Defense.
H-1B Specialty (Professional) Workers. For more information click
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