cita previa huellas Slot-Monitoring Service Automation
Budget / Salary€30–250
TypeFreelance project
LocationRemote
Posted2 hours ago
Project Overview
We need an experienced automation developer to build a resilient, 24/7 background slot-monitoring service. The target portal releases appointment slots intermittently and has aggressive rate-limiting + anti-bot protections.
Goal: Create a Slot detection system that:
Bypasses IP bans
Detects new slots at the API level (no heavy browser reloading)
Sends instant alerts the moment a slot becomes available
Key Deliverables
Endpoint Extraction – Reverse-engineer network requests (XHR/JSON) to monitor slots directly via API
TLS / Fingerprint Emulation – Use curl_cffi or proper TLS impersonation to avoid WAF detection
Rotating Proxy Integration – Multi-provider residential proxy pool with smart sticky session handling
Alerting Pipeline – Instant push notifications (Telegram bot / webhook) triggered strictly on state change
Required Skills
Strong experience bypassing Cloudflare (Turnstile / Under Attack mode), Akamai, or DataDome
Adaptive polling with jitter, exponential backoff, and proper handling of 429/403 errors
Ability to write lightweight, standalone Python (or Go) scripts that can run 24/7 on a basic Linux VPS
Clean, modular code with config files for proxies, headers, and secrets
Technical Evaluation Criteria
Area,Expected Approach,Disqualification Red Flag
Polling Strategy,Background REST/WebSocket + state difference,Selenium/Puppeteer refreshing every 2 seconds
Rate-Limit Avoidance,Residential rotating proxies + jitter + backoff,Hardcoded delays / single IP / no 429 handling
Fingerprint Handling,TLS JA3/JA4 spoofing + consistent headers,Default Python requests library
AreaExpected ApproachDisqualification Red FlagPolling StrategyBackground REST/WebSocket + state differenceSelenium/Puppeteer refreshing every 2 secondsRate-Limit AvoidanceResidential rotating proxies + jitter + backoffHardcoded delays / single IP / no 429 handlingFingerprint HandlingTLS JA3/JA4 spoofing + consistent headersDefault Python requests library
We need an experienced automation developer to build a resilient, 24/7 background slot-monitoring service. The target portal releases appointment slots intermittently and has aggressive rate-limiting + anti-bot protections.
Goal: Create a Slot detection system that:
Bypasses IP bans
Detects new slots at the API level (no heavy browser reloading)
Sends instant alerts the moment a slot becomes available
Key Deliverables
Endpoint Extraction – Reverse-engineer network requests (XHR/JSON) to monitor slots directly via API
TLS / Fingerprint Emulation – Use curl_cffi or proper TLS impersonation to avoid WAF detection
Rotating Proxy Integration – Multi-provider residential proxy pool with smart sticky session handling
Alerting Pipeline – Instant push notifications (Telegram bot / webhook) triggered strictly on state change
Required Skills
Strong experience bypassing Cloudflare (Turnstile / Under Attack mode), Akamai, or DataDome
Adaptive polling with jitter, exponential backoff, and proper handling of 429/403 errors
Ability to write lightweight, standalone Python (or Go) scripts that can run 24/7 on a basic Linux VPS
Clean, modular code with config files for proxies, headers, and secrets
Technical Evaluation Criteria
Area,Expected Approach,Disqualification Red Flag
Polling Strategy,Background REST/WebSocket + state difference,Selenium/Puppeteer refreshing every 2 seconds
Rate-Limit Avoidance,Residential rotating proxies + jitter + backoff,Hardcoded delays / single IP / no 429 handling
Fingerprint Handling,TLS JA3/JA4 spoofing + consistent headers,Default Python requests library
AreaExpected ApproachDisqualification Red FlagPolling StrategyBackground REST/WebSocket + state differenceSelenium/Puppeteer refreshing every 2 secondsRate-Limit AvoidanceResidential rotating proxies + jitter + backoffHardcoded delays / single IP / no 429 handlingFingerprint HandlingTLS JA3/JA4 spoofing + consistent headersDefault Python requests library
Apply on Freelancer →
Project sourced from Freelancer.com. Applications happen directly on the original platform — we never collect your data.