SwiftUI - Create static array from dictionary - swift

Question

I am trying to create an array with keys from a dictionary based on certain values from it. The dictionary that I have is employees_main.json and looks something like this:
{
"John Doe": {
"role": "Engineer",
"location": "Europe",
"isEmployedFullTime": true
},
"Jane Doe": {
"role": "Manager",
"location": "Europe",
"isEmployedFullTime": true
},
"U.N. Owen": {
"role": "Tech",
"location": "Europe",
"isEmployedFullTime": false
}
}
To load it into Swift I have create a Struct in a file called Employee.swift, as well as a Bundle-Decodable.swift file, and it loaded correctly.
struct Employee: Codable {
let role: String
let location: String
let isEmployedFullTime: Bool
}
Now in my ContentView I am trying to import the dictionary into an array of keys. My current code looks so:
struct ContentView: View {
#State private var employees = Bundle.main.decode("employees_main.json")
var employees_names: [String] {
employess.map(\.key)
}
}
This works in creating an array of the keys, but the array is shuffled every time it is called, breaking code further down which assumes a static structure, e.g. employees_names[1] will always be "Jane Doe". The second thing is I want to only get the keys where isEmployedFullTime is set to true, however I am not sure on how that if statement would look like in this.