Hide content in my Guide templates based on user segment or tag

Can someone point me in the right direction for my specific use cases below? 

I want to hide the Submit a Request link from users that are not tagged as our application administrators. We will denote this in a tag on their user profile, and/or in a Segment.

I have two locations to Submit a Request in our Guide theme, and I need to hide both of them:

1. A link in the header.hbs template called "Submit a Request". Relevant code below.
   <div class="nav-wrapper-desktop">
       <nav class="user-nav" id="user-nav">
         <ul class="user-nav-list">
           <a href="https://DOMAIN.zendesk.com/hc/en-us/requests/new?ticket_form_id=17736281711383">Submit a Request</a>
           <a href="https://DOMAIN.zendesk.com/hc/en-us/requests?">View Existing Requests</a>
   
   
2. A button on the home_page/hbs template that direct them to the for form page (same hyperlink as above). Relevant code below.
              <section class="categories blocks">
     <ul class="blocks-list">
         <li class="blocks-item">
               <a href='https://DOMAIN.zendesk.com/hc/en-us/requests/new?ticket_form_id=15128280641559' class="blocks-item-link"
                 <h4 class="blocks-item-title">Submit a Request to Support</h4>
                 <span class="blocks-item-description">Contact our support team by submitting a ticket through this form</span>
               </a>
         </li>

How do I selectively restrict the content above based on the user tag or segment? Thank you.