**Title:** Build Advanced Proxy Rotator + Multi-Session Anti-Detection Automation System **Description:** I am looking for an experienced developer to build a **high-performance proxy rotator and multi-session browser automation system** designed for stability, scalability, and anti-detection. This is **not a beginner project** — only apply if you have real experience working with proxy networks, browser automation, and bot-detection evasion. --- **Scope of Work:** **1. Proxy Rotation Engine** * Support for ISP and Residential proxies * Sticky sessions + timed rotation + per-request rotation * Intelligent retry logic on bans/timeouts * Proxy pool management (health checks, scoring, auto-replacement) * Format support: host:port:user:pass **2. Multi-Session Browser Automation** * Use Playwright / Puppeteer (Playwright preferred) * Ability to run 20–100 concurrent sessions * Assign 1 proxy per session * Efficient resource usage (low CPU/RAM overhead) **3. Session Isolation** * Separate cookies, localStorage, indexedDB per session * Unique browser profiles per instance * Consistent fingerprint per session **4. Fingerprint & Anti-Detection** * Canvas, WebGL, Audio fingerprint spoofing * User-Agent, timezone, locale, viewport alignment * WebRTC leak prevention * Navigator/window object patching * Human-like interaction patterns (delays, randomness) **5. Network Layer Control** * Intercept and modify requests (headers, cookies, payloads) * Optimize request flow (remove unnecessary calls) * Ability to analyze XHR/fetch traffic **6. Anti-Bot Handling** * Experience handling Cloudflare/Akamai-style protections * Detect soft vs hard blocks * Smart retry/backoff strategies **7. Optional (Preferred)** * CAPTCHA solving integration (manual or assisted) * Basic dashboard/UI for monitoring sessions and proxies --- **Deliverables:** * Fully working system (not just scripts) * Clean, modular, maintainable code * Configurable proxy/session settings * Documentation for setup and usage --- **Requirements:** * Proven experience with similar systems * Strong knowledge of browser internals, networking, and automation * Ability to write efficient, scalable code --- **To Apply, Include:** * Your tech stack * Relevant past work (GitHub, demos, case studies) * Brief explanation of how you would approach this project --- ** Only serious developers with real-world experience should apply.