Omnichannel Social Media API Integration

I need a senior engineer who has already wired multiple social networks into a single product and can show live links or repos that prove it. My platform must speak to X (Twitter), LinkedIn, Instagram, TikTok, Facebook, Threads, Bluesky, YouTube, Pinterest, and Google Business Profiles... (Budget: ₹12500 - ₹37500 INR, Jobs: API, API Development, Facebook API, Google Analytics, Instagram API, Microservices, Node.js, OAuth, Python, Software Architecture)