GardaWorld Security Services is Now Hiring a Concierge Security Officer! Ready to suit up as a Security Guard in a Concierge post? What matters most in a role like this is your ability to build meaningful connections. Tell us about how your natural ability to engage with others reassures and inspires confidence. As a Security Officer - Concierge, there is a high focus on customer service since you will be working with people on all shifts, in environments such as office towers, hotels, shopping centers, etc.