https://www.uscis.gov/working-in-the-united-states/h-1b-spec...

    The occupation requires:

    Theoretical and practical application of a body of highly specialized knowledge; and
    Attainment of a bachelor's or higher degree in a directly related* specific specialty (or its equivalent) as a minimum for entry into the occupation in the United States.
    
    The position must also meet one of the following criteria to qualify as a specialty occupation:

    A U.S. bachelor’s or higher degree in a directly related specific specialty, or its equivalent, is normally the minimum entry requirement for the particular occupation;
    A U.S. bachelor’s or higher degree in a directly related specific specialty, or its equivalent, is normally required to perform job duties in parallel positions among similar organizations in the employer’s industry in the United States;
    The employer, or third party if the beneficiary will be staffed to that third party, normally requires a U.S. bachelor’s or higher degree in a directly related specific specialty, or its equivalent, to perform the job duties of the position; or
    The specific duties of the offered position are so specialized, complex, or unique that the knowledge required to perform them is normally associated with the attainment of a U.S. bachelor’s or higher degree in a directly related specific specialty, or its equivalent.*

Chances are this was done as a seasonal H-2B non-agricultural worker (likely under a seasonal need)

https://www.uscis.gov/working-in-the-united-states/temporary...

    To qualify for H-2B nonimmigrant classification, the petitioner must establish that:
    There are not enough U.S. workers who are able, willing, qualified, and available to do the temporary work.
    Employing H-2B workers will not adversely affect the wages and working conditions of similarly employed U.S. workers.