AI Marketing Campaign Automation Setup

I need to move most of my day-to-day marketing workload onto an AI-driven system. The immediate priorities are: • Social media posting – Facebook must be fully automated first, with the option to extend the same workflow to Twitter and Instagram once the core build proves stable... (Budget: $250 - $750 USD, Jobs: AI Automation, Digital Marketing, Email Marketing, Facebook Marketing, Internet Marketing, OpenAI, PHP, Python, Social Media Management, Workflow Automation)