var obj = {
  "company": {
    "department_1": {
      "Products": {
        "unique_keyname_1": {
          "product_owner": "co-worker-1",
          "update_time": "unix_timestamp_1"
        },
        "unique_keyname_5": {
          "product_owner": "co-worker-4",
          "update_time": "unix_timestamp_45"
        },
        "unique_keyname_8": {
          "product_owner": "co-worker-2",
          "update_time": "unix_timestamp_5"
        }
      }
    },
    "department_2": {
      "Products": {
        "unique_keyname_3": {
          "product_owner": "co-worker-1",
          "update_time": "unix_timestamp_21"
        },
        "unique_keyname_6": {
          "product_owner": "co-worker-2",
          "update_time": "unix_timestamp_7"
        },
        "unique_keyname_4": {
          "product_owner": "co-worker-3",
          "update_time": "unix_timestamp_75"
        }
      }
    }
  }
}

obj.company.department_1.Products.unique_keyname_1

obj["company"]["department_1"]["Products"]["unique_keyname_1"]
// can also be more dynamic as:
 obj["company"]["department_"+ department_counter]["Products"]["unique_keyname_" + keyname_counter]

var products = [
  {
    department: 'deparetment_1',
    productName: 'Something',
    productOwner: 'Someone',
    update_time: 'Sometime'
  }
]