Save Custom HierarchicalTaxonomy using checkboxes

I have a custom hierarchical taxonomy named “Job Categories”.

array( APP_POST_TYPE ),
            array('hierarchical' => true,
                    'labels' => array(
                            'name' => __( 'Job Categories', 'appthemes'),
                            'singular_name' => __( 'Job Category', 'appthemes'),
                            'search_items' =>  __( 'Search Job Categories', 'appthemes'),
                            'all_items' => __( 'All Job Categories', 'appthemes'),
                            'parent_item' => __( 'Parent Job Category', 'appthemes'),
                            'parent_item_colon' => __( 'Parent Job Category:', 'appthemes'),
                            'edit_item' => __( 'Edit Job Category', 'appthemes'),
                            'update_item' => __( 'Update Job Category', 'appthemes'),
                            'add_new_item' => __( 'Add New Job Category', 'appthemes'),
                            'new_item_name' => __( 'New Job Category Name', 'appthemes')
                    ),
                    'show_ui' => true,
                    'query_var' => true,
					'update_count_callback' => '_update_post_term_count',
                    'rewrite' => array( 'slug' => $cat_tax_base_url, 'hierarchical' => true ),
            )
    );

How do I save these values using checkboxes in the front-end using custom scripting instead of the Dashboard?