Market intelligence platforms, AI sales tools, pricing aggregators, and RAG knowledge-base builders frequently search to hire a freelance AI web crawling (Firecrawl, Crawl4AI, Playwright) & B2B data enrichment programmer. I am Aldian Fazrihady, a Senior Freelance AI Application Engineer and Data Pipeline Architect available via Upwork.
Core Web Ingestion & Structured Data Enrichment Capabilities
- LLM-Ready Markdown & Schema Extraction (Crawl4AI / Firecrawl / Playwright): Converting dynamic JavaScript SPAs, paginated directories, and PDFs into clean Markdown and Pydantic-validated JSON entities.
- Incremental Change Detection & Deduplication: Computing SimHash/MinHash content fingerprints and HTTP `ETag` / `Last-Modified` conditional requests so your pipeline only re-embeds and re-processes pages that actually changed.
- Multi-Vendor Waterfall Data Enrichment: Orchestrating waterfall lookups across Clearbit, Apollo, Clay, People Data Labs, OpenCorporates, and SEC EDGAR APIs with Redis caching.
Frequently Asked Questions
How do you keep web data extraction pipelines low-cost at millions of pages per month?
Instead of calling an expensive frontier LLM on raw 200KB HTML DOM trees, I prune boilerplate navigation/script tags first using fast lxml/Selectolax rules or lightweight local extraction models before validating edge cases with LLMs.
How can we hire you for data enrichment & web ingestion engineering?
Contact me on Upwork.