Tips on Customizing Job Postings

How to Hide Job Postings Admin Menus

function plt_hide_job_postings_menus() {
	//Hide "Jobs".
	remove_menu_page('edit.php?post_type=jobs');
	//Hide "Jobs → All positions".
	remove_submenu_page('edit.php?post_type=jobs', 'edit.php?post_type=jobs');
	//Hide "Jobs → Add new position".
	remove_submenu_page('edit.php?post_type=jobs', 'post-new.php?post_type=jobs');
	//Hide "Jobs → Categories".
	remove_submenu_page('edit.php?post_type=jobs', 'edit-tags.php?taxonomy=jobs_category&post_type=jobs');
	//Hide "Jobs → Job entries".
	remove_submenu_page('edit.php?post_type=jobs', 'edit.php?post_type=job-entry');
	//Hide "Jobs → Settings".
	remove_submenu_page('edit.php?post_type=jobs', 'jp-settings');
	//Hide "Jobs → Help".
	remove_submenu_page('edit.php?post_type=jobs', 'jp-help');
}

add_action('admin_menu', 'plt_hide_job_postings_menus', 11);

Where do I put this code?

How to Hide Job Postings Meta Boxes

function plt_hide_job_postings_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "Entry details" meta box.
	remove_meta_box('jos-entry-meta-box', $screen->id, 'normal');
	//Hide the "Jobs for WP - Position details" meta box.
	remove_meta_box('jobs-postings-meta-box', $screen->id, 'normal');
	//Hide the "Structured Data" meta box.
	remove_meta_box('jobs-postings-guide-meta-box', $screen->id, 'side');
	//Hide the "Inactive widgets" meta box.
	remove_meta_box('jobs-postings-disabled-meta-box', $screen->id, 'side');
}

add_action('add_meta_boxes', 'plt_hide_job_postings_metaboxes', 20);