I will build an ai document data extraction system

C
cslufenwang
C
cslufenwang
Helen Black

About this gig

Every hour your team spends copying data from PDFs into Excel is an hour wasted and every manual mistake costs more.


I'm a backend and AI systems engineer. I built a production document-extraction system that has processed 20,000+ real documents, and I will build the same class of system for your business.


What you get:

Structured data from invoices, contracts, bills of lading, reports any document type

Output exactly how you need it: Excel, CSV, JSON, or direct database/API integration

Source highlighting: every extracted value is traced back to its exact location in the original PDF, so verification takes seconds instead of hours

Confidence scores per field, so your team only reviews what actually needs review


Why me:

Real production experience, not just scripts (20,000+ documents processed)

Python and Java backend engineer I can integrate with your existing systems

Clear communication and honest delivery dates


Send me a sample document (or a redacted version) and I'll tell you exactly what's achievable and what it costs before you order.

Get to know Helen Black

Helen Black

AI Automation Engineer, Document Data Extraction and Custom AI Systems

  • FromChina
  • Member sinceSep 2026
  • Avg. response time1 hour
  • Languages

    Chinese, English
Backend and AI systems engineer focused on production-grade automation. I built a scheduling platform dispatching 500K+ tasks/day across 400+ microservices, an AI extraction system that processed 20,000+ documents with source-level traceability, and a dispatch engine that assigned 1M+ tasks. What I can do for you: - Document data extraction (invoices, contracts) into JSON/Excel with highlighted sources on the PDF - AI chatbots / RAG systems trained on your documents - Automation, API integrations, scheduled jobs, data pipelines - Python and Java backend development