Telegram API / MTProto Specialist Needed for Member & Engagement Analysis

I run a public Telegram channel with 30 000+ members but only a fraction appear truly active. I need a specialist who can dive into the Telegram API / MTProto from the vantage point of a regular member account and tell me, with evidence, exactly what member-level data is retrievable... (Budget: $10 - $11 USD, Jobs: API Development, Data Analysis, Data Collection, Data Management, Data Visualization, Python, Software Development, Telegram API)