When you are navigating a specific job page, the job links on the sidebar are broken, because the protocol part is url encoded, the browser (in my case, Chrome) interprets them as relative links. The links are hrefed as this: https%3A//chartio.com/jobs/ui-developer
So, don't escape html characters in the protocol part of the link.
Cheers and beers!
Thanks for reporting! Just fixed it :).