if (professional)
{
    switch (expertiseLevel)
    {
        case "advanced":
            return "C# 3/4/4.5, SQL";
        case "intermediate":
            return "VB6.0";
        case "entry":
            return "X-Code 6/7, Swift 2.0, SignalR";
    }
}
else if (personal)
{
    return "Shampoo-fan extraordinary, avid PC-Gamer"
}