Fernando Daflon

I reverse-engineer protected SaaS and portal request flows into production Python tooling. Through Fernando Daflon Serviços LTDA, I built extraction paths for Cloudflare-, Turnstile-, and SSO-gated targets using pydoll, nodriver, curl_cffi, httpx, Scrapy, and PostgreSQL.

For a protected SaaS BI panel, I mapped session identity binding across IP, TLS, and cookies, documented cross-process handoff failures, and shipped durable CDP E2E and HTTP-handoff CLI paths with pytest coverage.

At Sigalei, I operated high-load Scrapy workloads under active anti-bot controls, using Squid proxy infrastructure, Kubernetes Jobs and CronJobs, Elasticsearch, and production failure triage. Earlier at MRM - Global Logistics Solutions, I built multi-architecture crawlers and used DevTools to find stable JSON feeds instead of brittle DOM paths.

I document failed detection surfaces as carefully as shipped solutions, turning investigation results into reusable CLI, ETL, regression, and checkpointed extraction workflows.