Bellsant
Project Overview
Over 6 months, I participated in the development of a revolutionary health and wellness app at BellSant, with an ambitious goal: to help users live a healthier and happier life for as long as possible.
Technological Architecture
Development Stack
- Mobile Frontend: React Native
- Backend: Serverless Framework with NodeJS
- Cloud Infrastructure: AWS Lambda
- Database: Amazon DynamoDB
- Data Modeling: Dynamoose
Main Functionalities
1. Integrated Health Analysis
The BellSant app offers a unique approach, connecting:
- Advanced laboratory diagnostics
- Physical health measurements
- Mental strength metrics
- Connected fitness device data
2. Technological Integrations
Health Platforms
- Epic Systems: Integration with electronic medical record system
- Authentication via SSO and OpenID Connect (OIDC)
- Secure medical information sharing
- Synchronization with MyChart
- SteadyMD: Laboratory exam scheduling
Device Integration
- Terra API: Connection with over 300 fitness data sources
- GDPR and HIPAA compliant
- Support for various wearable devices
Technical Challenges
The main project complexity was in system integrations, especially due to:
- Diversity of communication protocols
- Variations in data sharing standards
- Often incomplete technical documentation
Artificial Intelligence Innovations
Intelligent Chat with AWS Bedrock
- Creation of a knowledge base with user medical data
- Development of an AI agent with capabilities of:
- Retrieval Augmented Generation (RAG)
- Contextual information analysis
- Generation of personalized responses
Intelligent Recommendation System
Recommendation engine based on:
- Health questionnaires
- Laboratory exam results
- Connected fitness device metrics
The system model was hosted on the Hygraph CMS, and thanks to this model, our recommendation engine deterministically suggests recommendations for the user in conjunction with the doctor to make the best decisions.
The model became so interesting with automated tests that we created this meme:
Impact and Result
The project represented a significant advancement in digital health solutions, enabling:
- Personalized health monitoring
- Proactive wellness recommendations
- Simplified integration between different health systems
Complementary Tools and Technologies
| Category | Technologies |
|---|---|
| Development | React Native, NodeJS, Serverless Framework |
| Infrastructure | AWS Lambda, DynamoDB |
| Integrations | Epic Systems, Terra API, SteadyMD |
| AI | AWS Bedrock, RAG |
| Data Management | Dynamoose, Hygraph |
This experience at BellSant consolidated my knowledge in developing innovative solutions for the healthcare sector, combining cutting-edge technologies with a user-centered approach.
