Required MongoDB,NoSQL,Python freelancer for Help decide the cost effective AWS NoSQL database and basic python operations to use that database job

Help decide the cost effective AWS NoSQL database

Rough schema for a post:
postid:'post1', userid:'user1', post:'post', datetime:'unixtime', meta:{ other meta data}

Criteria:
* Get all posts given a userid (also filter/sort posts by datetime)
* Index post, userid -- search with keyword and match in the post / userid attributes
* sort, filter by datetime

Tasks:
* Identify the database - discuss and finalize
* Basic python library to support constrains mentioned in the criteria

Skills & Expertise Required

MongoDB NoSQL Python