I need an experienced Python developer to add reliable Cloudflare captcha solving to an existing Selenium login flow (Twitter). The solution must ensure the solver requests use the same proxy as Selenium, so Cloudflare verification passes consistently. Your job will be to detect Cloudflare challenges (FunCaptcha / Turnstile or similar), solve them using Capsolver (or equivalent enterprise-capable solver), inject the solution correctly into the page, and ensure the automation continues smoothly. Must-have expertise (expert-level) Proxy integration so solver requests use the same proxy as Selenium Strong Python and Selenium experience (undetected-chromedriver experience a plus) Deep knowledge of Cloudflare anti-bot challenges (Turnstile, FunCaptcha wrappers, hCaptcha enterprise variants) Proven experience integrating captcha-solver APIs (Capsolver, AntiCaptcha, 2Captcha) — including AntiCloudflareTask-like flows Ability to inject tokens / emulate required client-side behavior (JS execution, form/token injection) Robust error handling, retries, and logging for headless/headed sessions Secure handling of API keys and credentials, and writing clean, maintainable code Ability to test and verify across multiple runs and provide a short test report Deliverables Updated Python script that: detects Cloudflare challenges → solves via Capsolver (or an agreed solver) → injects token → resumes automation. Proxy integration so solver and Selenium are aligned. Short README with setup steps, dependency list, and how to run basic tests. One short demo log of successful runs (screenshots or logs). To apply, include Short summary of relevant experience and specific projects (links or code snippets preferred) Which solver(s) you would use and why Estimated time and fixed price for the task Availability to start