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$
USD
I will build an ai document data extraction system
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
FAQ
What document types can you handle?
Any text-based PDF or scan: invoices, purchase orders, bills of lading, contracts, insurance forms, financial reports. Send a sample first and I'll confirm feasibility.
What does "source highlighting" mean?
For every field extracted (e.g. invoice total), the system also returns its exact position in the original PDF, so you can verify results instantly against the source.
Do you handle scanned documents?
Yes — printed scans via OCR. Handwriting: case by case, send a sample first.
Can this run on my own infrastructure?
Yes. Premium includes deployment support (Docker, cloud, or on-premise), so your data never leaves your environment.
What about data privacy?
I sign NDAs and can build the pipeline to process documents within your own infrastructure.
