David J. Smith nwere ihe karịrị afọ 30 dị ka onye ndụmọdụ, onye na-ahụ maka ọrụ, onye ọka iwu, onye ogbugbo, onye nkuzi na onye nkuzi. Ọ kpọtụrụla kọleji karịrị 400 gburugburu US ma nyefeela okwu 500 maka iwulite udo, mkpebi esemokwu, ikpe mmekọrịta mmadụ na ibe, na agụmakwụkwọ mba ụwa. Ọ bụ onyeisi oche nke Ụlọ ọrụ nkwụsị maka Center for Peacebuilding andHumanitarian Education, Inc., 501c3 abụghị maka uru na-enye ohere mmụta mmụta maka ụmụ akwụkwọ na ndị ọkachamara. N'oge gara aga, ọ bụ onye isi ọrụ mmemme na njikwa na US Institute of Peace. David kụziri ihe na Goucher College, Mahadum Georgetown, Mahadum Towson na ugbu a na Schoollọ Akwụkwọ maka nyocha na esemokwu esemokwu na Mahadum George Mason. David bụ onye US Fulbright Ọkammụta na Mahadum Tartu (Estonia) ebe ọ kuziri nkuzi udo na mkpebi esemokwu. Ọ bụ onye natara onyinye onyinye William J. Kreidler maka Ọrụ Pụrụ Iche n'ọhịa nke Mkpebi esemokwu nke Association maka Mkpebi Esemokwu. David bụ onye edemede nke Ọrụ Udo: Otu Nduzi nke Onye Nduzi Iji Malite oru n'oru maka Udo (Information Age Publishing 2016) na nchịkọta nke Ụlọ akwụkwọ na-eme ka e nwee udo n'ụlọ akwụkwọ: A Resource Resource (USIP Press 2013). Akụkụ ndị na-elekwasị anya: eme ka udo dị.
