Senior Backend Automation Engineer - Playwright / Node.js (Anti-Bot Bypass Specialist)⁠

We are looking to build a high-speed, multi-client monitoring and automation system for a strict portal protected by Cloudflare/Akamai. The system must scale cleanly to handle multiple user profiles simultaneously without session conflicts, local hardware strain, or IP blocks. Required Architecture (Mandatory): * Backend Engine: Node.js using Playwright or Puppeteer (Headless). No local Chrome extensions. * Parallel Execution: Distributed architecture using isolated worker processes or contexts to monitor multiple accounts at the exact same second. * Proxy Management: Integration with a premium residential proxy pool featuring dynamic IP rotation and TLS fingerprint spoofing to mitigate "Access Denied" blocks. * Captcha Strategy: Seamless automated integration with 2Captcha / Anti-Captcha APIs for background token resolution. Please apply ONLY if you have proven experience bypassing enterprise-tier firewalls at scale and can demonstrate a solid architectural blueprint for handling parallel multi-account sessions.