Full Spectrum SEO Optimization

I already have the codebase and hosting nailed down—I’m a full-stack developer—so access to the CMS, server logs, and analytics will be quick and painless. What I need now is a holistic SEO push that covers... (Budget: ₹1500 - ₹12500 INR, Jobs: Analytics, Internet Marketing, Keyword Research, Link Building, PHP, Search Engine Marketing, SEMrush, SEO)