Job.update(
    {estimateSet: {"$elemMatch": {_id: estimateId}}},
    {$push:
      {
        "estimateSet.$.lineItemSet":
        {
          '_id': lineItem._id,
          'measurements' : lineItem.measurements,
          'quantity' : parseInt(lineItem.quantity),
          'installPrice' : lineItem.installPrice,
          'productId' : lineItem.productId,
        }
      }
    },
    {upsert: true ,safe:true},
    function (err, numberAffected, raw) {
      console.log("err: ", err);
      console.log("numberAffected: ", numberAffected);
      console.log("raw: ", raw);
      err ? res.send({"error": true}) : res.send({"error": false});
    }
  );