HttpWebRequest Parse Json Help Need Guru!

Hello all,

I have C# where I am doing a HttpWebRequest and getting the HttpWebResponse.   My response is doing a streamreader and I get the following JSON string back into a string variable.   What I need to do is somehow parse this where I need to look for the element name "levelFactor" = 1.  There will always only be one of the levels that have the levelFactor = 1 in the JSON.  After I find that I need to get the corresponding levelSize in this example 100000 and set that to an int variable called levelResult.  How can I parse through this to get that levelSize?  I also am doing this in SSIS script task so I can't easily use Newtonsoft JObject it needs to be serializing it somehow.  Thanks all

[
    {
        "categoryName": "PAYABLE",
        "clientTypeId": 5,
        "clientId": 105,
        "levels": [
            {
                "levelTypeId": 1,
                "levelFactor": 0,
                "recordId": 68,
                "levelSize": 0,
            "comp": 1
            },
            {
                "levelTypeId": 3,
                "levelFactor": 1,
                "recordId": 67,
                "levelSize": 100000,
            "comp": 7
            }
        ],
        "recordId": 34,
        "dateActive": "2018-01-14T00:00:00",
        "dateInactive": "9999-12-31T00:00:00",
        "auditDate": "2018-01-14T22:25:11.69"
    }
]