And here is the ObXTW (the Obligatory XML::Twig Way), once you've fixed your XML by wrapping everything into a single element:
#!/bin/perl -w
use strict;
use XML::Twig;
my $t= new XML::Twig( twig_handlers => { post => \&post });
$t->parse( \*DATA);
sub post
{ my( $t, $post)= @_; # all handlers get called with those arguments
# here is the magic!
# gi is the element name and text is its... text!
my %hash= map { $_->gi, $_->text} $post->children;
# or whatever you want to do with the hash
print "City: $hash{location} \n";
# if your file is small enough you don't need to purge, otherwise
# it will free the memory used so far
$t->purge;
}
__DATA__
<posts>
<post>
<jobnumber>1234</jobnumber>
<location> somecity NJ </location>
</post>
<post>
<jobnumber>87922</jobnumber>
<location> Othercity, AK </location>
</post>
</posts>