New Year, New Build. 🏗️
Welcome to Day 7 of my #100DaysOfCloud challenge. Happy 2026! To kick off the year, I'm focusing on System Design for a new project.
I am starting the planning phase for: The Personal AI Finance Agent.
The Project Idea
Current bank apps are great for seeing what you spent, but I want to build something that actively helps me manage my finances using intelligence. An agent that analyzes habits and provides feedback.
The Architecture Stack 🛠️
I've designed a Serverless architecture for this:
- The Ingestion Layer (AWS Lambda + Python) A Lambda function, triggered daily by EventBridge, will fetch new transactions.
External API: I'll connect to a banking provider like GoCardless via their secure APIs.
The Security Layer (Secrets Manager) Security is paramount. I will use AWS Secrets Manager to store and retrieve API keys at runtime, ensuring no credentials are ever hardcoded.
The Storage Layer (DynamoDB) I'll use DynamoDB to store transaction records. It's perfect for its speed and scalability.
The Intelligence Layer (AWS Bedrock) This is the exciting part. I'll feed financial data into AWS Bedrock (using a model like Claude) to generate personalized insights and advice.
What's Next?
With the blueprint ready, tomorrow (Day 8) begins the implementation phase, starting with establishing the secure banking API connection.
Here's to a year of building and learning! 🎆
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