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AI Document KYC Pipeline — Vibranium Bytes
Fintech · Document AI

AI Document KYC Pipeline

Client
Series-B Fintech Startup
Timeline
8 weeks
Stack
Python · GPT-4o · Laravel · Redis · AWS Textract · PostgreSQL
Result

95% straight-through processing, 72hrs → 15min turnaround

The challenge

What we were up against

Manual KYC verification was their #1 bottleneck. A team of 12 analysts processed 500 documents/day with a 72-hour turnaround. Errors cost $50K+ per compliance failure. They needed automation that could handle 15 document types across 8 countries with 95%+ accuracy.

Solution

What we built

We built an AI-powered document processing pipeline that uses OCR for text extraction, GPT-4o for intelligent classification and data extraction, and a custom validation layer that cross-references extracted data against compliance rules. The system handles 15 document types (passports, utility bills, bank statements, tax returns, etc.) with a human-in-the-loop review queue for low-confidence extractions.

Approach

How we did it

Week 1-2: Mapped all 15 document types, built extraction schemas and compliance rule engine.
Week 3-4: Built the OCR + LLM pipeline with retry logic and cost monitoring.
Week 5-6: Implemented the validation layer, review queue UI and Slack alerts.
Week 7-8: Load testing with 10,000 real documents, accuracy tuning and deployment.

Outcome

The results

The pipeline now processes 10,000+ documents daily with 95% straight-through processing. The compliance team was reduced from 12 to 2 reviewers who only handle edge cases. Average processing time dropped from 72 hours to 15 minutes per document. Zero compliance failures in the first 6 months of production.

Architecture

System architecture

Documents ingested, embedded, stored in a vector database, retrieved with precision and validated before reaching the user.

Ingest PDF · API · DB Embed Vectorize Vector DB Store & Index Retrieve Semantic Search LLM Generate Validate Grounding Check Respond Cited Answer 01 02 03 04 05 06 07 Core AI Pipeline Infrastructure
Stack

Technology used

Python GPT-4o Laravel Redis AWS Textract PostgreSQL
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