Web App With Social Integration

I’m building a mobile-friendly web app and need an experienced developer to turn my concept into a polished, deployable product. The project is firmly focused on the web-app approach (no native or hybrid layers), so you should be fully comfortable with responsive front-end frameworks such as React, Vue, or Angular and a lightweight back-end or serverless setup that keeps load times fast.

The core requirement is seamless social media integration. Users must be able to:

• Sign in quickly with their existing Facebook, Google, or Twitter accounts
• Share selected in-app content to those same networks without friction
• Grant and revoke permissions from a clear, secure settings panel

Beyond that, I’m open to your recommendations on best-practice UX, UI polish, and the tech stack that will future-proof the codebase.

Deliverables:
1. Source code in a public or private repo of my choice
2. A short README detailing build/run instructions and social API keys setup
3. Deployed demo link for live testing
4. Two weeks of post-launch bug-fix support

Please outline your preferred stack, any similar projects you’ve shipped, and an estimated timeline. I’m ready to move quickly once I find the right fit.