CBSubs can control access to an entire component (by Component protection) or even just parts of the component (By URL Part protection). there won't be 2 logins per say, but your goal is achievable none the less. Simply have 2 plans, both exclusive (mandatory) 1 is employer and 1 is seeker. Limit what parts of the site you want with the employer plan that you do not want the seeker plan to have access to. Do not forgot to disable upgrades for the plans so once a user is a seeker, they can't upgrade to employer and gain access to areas they shouldn't have! (you can also manually give the links out to employers if you prefer no public access to the plan)