I am looking for a blockchain developer

The first task is to pull the nft collection holders list from its slug.
The output format should be like following.
[
{
"holder_address": "0x...",
"items": [
{
"item_address": "0x..",
"since": "2022-02-15T03:05:50Z",
},
{
"item_address": "0x..",
"since": "2022-02-15T03:05:50Z",
},
...
]
},
{
"holder_address": "0x...",
"items": [
{
"item_address": "0x..",
"since": "2022-02-15T03:05:50Z",
},
{
"item_address": "0x..",
"since": "2022-02-15T03:05:50Z",
},
...
]
}
]
This should be built with python.