Annual Salary

using System;

namespace AnnualSalary
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int experience = int.Parse(Console.ReadLine());
            string specialty = Console.ReadLine();

            double salary = 0;

            if (specialty == "C# Developer")
            {
                salary = 5400;
            }
            else if (specialty == "Java Developer")
            {
                salary = 5700;
            }
            else if (specialty == "Front-End Web Developer")
            {
                salary = 4100;
            }
            else if (specialty == "UX / UI Designer")
            {
                salary = 3100;
            }
            else if (specialty == "Game Designer")
            {
                salary = 3600;
            }

            if (experience <= 5)
            {
                salary -= salary * 0.658;
            }

            Console.WriteLine($"Total earned money: {salary * 12:f2} BGN");
        }
    }
}

Решение с тернарен оператор:

using System;

namespace AnnualSalary
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int experience = int.Parse(Console.ReadLine());
            string specialty = Console.ReadLine();

            double salary =
                specialty == "C# Developer" ? 5400 :
                specialty == "Java Developer" ? 5700 :
                specialty == "Front-End Web Developer" ? 4100 :
                specialty == "UX / UI Designer" ? 3100 :
                specialty == "Game Designer" ? 3600 : 0;

            if (experience <= 5)
            {
                salary -= salary * 0.658;
            }

            Console.WriteLine($"Total earned money: {salary * 12:f2} BGN");
        }
    }
}