Architecting a Modern Solution to Complex AI Problems

By Joseph Quinn on Jan 22, 2025, 4:16:00 PM EST

Leveraging AWS Well-Architected Framework: Lexmata's Journey to Scalable Digital Document Services

In today's digital landscape, businesses need robust, secure, and scalable solutions for managing their documents and data. At Lexmata, we've built our Digital Document services platform on AWS's comprehensive cloud infrastructure, adhering to the Well-Architected Framework to ensure optimal performance, security, and cost-effectiveness for our customers.

Infrastructure That Scales

Our architecture leverages Amazon Elastic Container Service (ECS) to efficiently scale both our Frontend and API servers. This containerization approach allows us to maintain high availability while automatically adjusting resources based on demand. When traffic increases, our services seamlessly scale up, ensuring consistent performance for our users without manual intervention.

For our database needs, we chose Amazon Aurora, which provides enterprise-grade reliability with the simplicity of a managed service. Aurora's ability to automatically scale read replicas and storage capacity helps us maintain exceptional performance while keeping costs optimized. The pay-as-you-go model ensures we only pay for the resources we actually use.

Security-First Approach

Security is paramount in document management. We utilize Amazon S3 for file storage, implementing industry-leading encryption standards to protect our customers' sensitive documents. Access control is strictly maintained, with administrative access limited to authorized personnel only. This approach aligns with AWS's robust security practices and compliance standards.

To handle high-volume document processing efficiently, we've implemented Amazon SQS as our messaging queue system. This allows us to process customer interactions asynchronously, preventing system overload during peak usage while ensuring reliable delivery of all requests. The decoupled architecture enables better scalability and resilience in our services.

Modern Frontend Architecture

We've chosen Angular as our frontend framework, taking advantage of its enterprise-grade capabilities and Server-Side Rendering (SSR) features. Angular's comprehensive tooling and robust ecosystem make it ideal for building complex applications at scale. The SSR implementation significantly improves initial page load times and SEO performance, crucial factors for our business customers.

API Excellence

Our backend is powered by NestJS and GraphQL, a combination that provides several advantages:

  • NestJS's modular architecture enables clean, maintainable code
  • GraphQL allows clients to request exactly the data they need, reducing network overhead
  • Type safety across the stack improves reliability and developer experience
  • Built-in support for dependency injection and testing

AI-Powered Document Processing with AWS Bedrock

Our AI capabilities are powered by AWS Bedrock, enabling us to process and analyze documents at scale with state-of-the-art machine learning models. Bedrock's managed infrastructure allows us to:

  • Deploy multiple AI models without managing complex infrastructure
  • Scale AI processing automatically based on demand
  • Access foundation models for tasks like document classification and information extraction
  • Maintain low latency while processing large volumes of documents
  • Control costs by paying only for actual model usage
  • Ensure data privacy with AWS's secure AI infrastructure

This integration enhances our ability to provide intelligent document processing while maintaining the security and scalability our customers expect.

AWS: A Foundation for Growth

Building on AWS has given us access to a proven track record of reliability and security. AWS's global infrastructure and comprehensive service offerings allow companies like Lexmata to scale efficiently while maintaining high security standards. Their continuous innovation in cloud services enables us to focus on our core business while knowing our infrastructure is built on a solid foundation.

Looking Forward

As we continue to grow and evolve our Digital Document services, AWS's Well-Architected Framework provides us with the guidelines needed to maintain excellence in our architecture. The combination of AWS services, Angular, NestJS, and GraphQL positions us well to meet the growing demands of our customers while maintaining the high standards of security and performance they expect.

Through this architecture, we're able to deliver a service that's not just powerful and secure, but also cost-effective and scalable for businesses of all sizes. Our commitment to following AWS best practices ensures that as we grow, our platform will continue to meet and exceed our customers' expectations.