Thank you, you are correct /careers/ without the regex will work. I dug deeper and found a conflicting entry in my site’s .htaccess file from a prior attempt to handle redirection. Removing that has fixed the issue.
Thank you for your reply, /careers/ was the first method I tried and it also redirected all subpages. Apologies for not including it in my original question.
I assumed the redirect was working as intended, that’s why I switched over to try to be more explicit with regex. Any other ideas?