The first one creates an error because the taxonomy “taxonomy-name” does not exist. I didn’t know the name of the taxonomy and you needed to replace that with the name of your taxonomy
$job_term = get_term(get_field('member_person_job'), 'jobs');
The last block of code will not work. The currently queried object is probably not a taxonomy. The only way that will work would be on a url that looks something like http://www.yourside.com/jobs/JOB_NAME_HERE
