。
She hired him as a programmer.
Literal
She [topic-は] him [object-を] programmer [as-として] hired.
~として ('as, in the capacity of') is the standard way to specify the role under which someone is hired, designated, or otherwise placed. プログラマー is a standard English-origin loanword written in katakana — modern technical job titles are overwhelmingly imported wholesale rather than translated. 雇う ('to hire, employ') takes the direct object with を for the person hired and ~として for the role.