AI Automation Engineer Freelance / Self-employed
Built JobRadar, a multi-source AI pipeline ingesting job postings from Gmail API, IMAP, and Firecrawl. Implemented LLM extraction with schema validation, production hardening, prompt injection detection, sender risk scoring, HMAC webhook authentication, idempotent upserts, and per-record error isolation. Deployed with n8n on a self-managed Hetzner VPS using Docker, pgvector/Postgres, OpenRouter routing, and Telegram alerting.