AI engineering portfolio · synthetic data only

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Regulated AI Document Intelligence & RAG

A bounded insurance knowledge assistant demonstrating document extraction, retrieval-grounded generation, PII controls, human decision boundaries, persistent serverless retrieval and AWS AI integration.

PythonFastAPIAWS LambdaAPI GatewayBedrockDynamoDBTextractCloudflare Pages
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Step 1

Load a controlled synthetic claim guide

The public path is intentionally synthetic-only. When the AWS backend is connected with Textract enabled, the bundled PDF is processed through Textract; the fallback path uses pre-bundled synthetic text and states that clearly.

No document loaded yet.
Developer mode: custom synthetic upload

Only use fabricated or anonymised files. Public deployments disable this route by default.


      

    


    

      

        

          
Step 2

          
Ask a grounded question

        

        no document selected
      


      

        
        
        
        
      


      
      
      

      

        
Answer

        
Load the synthetic demo first.

        

      

      

    


    

      
Control
Human-owned decisions
Approval, rejection, fraud, pricing and eligibility decisions are explicitly blocked from model execution.

      
Privacy
PII minimisation
PII is redacted before indexing/model use and output is checked again before returning to the client.

      
Reliability
Persistent retrieval
DynamoDB persists document chunks across Lambda cold starts; OpenSearch vector retrieval remains an optional scale-up path.

      
Governance
Audit without raw prompts
Structured request metadata goes to logs while raw documents, prompts and evidence are deliberately omitted.

      
Deployment
Truthful runtime disclosure
The interface exposes whether requests are hitting AWS Bedrock or the synthetic Cloudflare fallback, preventing portfolio overclaiming.

      
Verification
Automated journey checks
Backend tests, evaluation cases, JS syntax checks and edge smoke tests cover retrieval, policy boundaries and deployment behaviour.

    


    

      
Architecture

      
Public demo → AWS production-shaped path

      
Browser
  ↓
Cloudflare Pages + same-origin Function
  ↓
API Gateway
  ↓
Lambda + FastAPI
  ├─ Bedrock Converse
  ├─ DynamoDB document chunks
  ├─ Textract optional OCR
  └─ CloudWatch structured audit metadata

      
The edge fallback exists only to keep the public synthetic demo usable before AWS credentials are connected. It is deliberately labelled in the live runtime status above.

    


    

      Portfolio boundary: synthetic engineering demonstration only. It is not production insurance software, must not process real customer data, and must not make high-impact insurance decisions.