Cloud Native Legal AI Document Automation

A technology-driven legal solutions provider seeking robust, automated infrastructure to streamline document workflows and deliver AI-powered legal insights to enterprise users. The need was for secure, scalable, and modular infrastructure to accelerate new features and ensure reliability for critical legal operations. 

• Orchestrating multiple AI-powered services (chat, document, copilot) within a secure, scalable cloud environment.
• Efficient document analysis and automation with minimal latency.
• Robust storage and indexing for millions of legal document interactions.
• Seamless integration of serverless event-driven components (Lambda, Step Functions).
• Secured access to sensitive data across environments (SIT/Test/Prod).
• Automating full-stack deployment (infrastructure, backend, frontend) for rapid iteration.

AI Core Services 

• FastAPI-based services are deployed as ECS tasks managed under a centralized ECS cluster, with AI chat, document, and copilot modules.
• Lambda functions perform text extraction, intelligent tagging, and contract analysis, coordinated via Step Functions for complex workflows.
• Microservices are built as Docker images and deployed from Amazon ECR repositories.

Backend & Provisioning 

• Backend and provisioning APIs are containerized and deployed through ECS, with environment-specific configurations.
• Amazon RDS is used for transactional data and DynamoDB for scalable metadata and index management.
• AWS Secrets Manager secures database and API credentials, accessed by tightly scoped IAM roles.

• A Bastion Host allows secure administrative access to RDS databases within private subnets.

Frontend 

• The user interface is hosted on AWS Amplify, integrated with Bitbucket for hands-off CI/CD.
• Amplify automatically deploys new builds from the SIT branch after each code commit.

DevOps & Infrastructure as Code 

• All resources (VPC, ECS, ALB, IAM, DynamoDB, etc.) are managed using Terraform for rapid, repeatable deployments.
• Environment setup and service deployment are triggered via Bitbucket Pipelines, ensuring full infrastructure and application automation.
• DNS for the SIT environment is managed via a third-party DNS provider and linked to ALB DNS endpoints for environment access.

Technologies 

• FastAPI (Python) for microservices
• AWS Lambda for serverless event-driven functions
• AWS Step Functions for workflow orchestration
• Docker for containerization
• Bitbucket Pipelines for CI/CD automation
• Terraform for Infrastructure as Code (IaC)

Infrastructure 

• AWS ECS (Fargate) for scalable container orchestration
• Application Load Balancer (ALB) for HTTP/HTTPS traffic routing
• Amazon DynamoDB for metadata and indexing storage
• Amazon RDS (PostgreSQL) for transactional data storage
• AWS Amplify for frontend hosting and CI/CD
• Amazon ECR for container image storage
• AWS Secrets Manager for secure credential storage
• Amazon S3 for object storage and Lambda artifacts
• VPC with public and private subnets, plus Bastion Host for secure RDS access
• Security Groups for network security and segregation

• Significantly reduced time-to-deploy and friction for new legal AI service rollouts.
• Real-time, AI-driven legal document processing and chat support for users.
• Secure separation of environments with strict, least-privilege access controls.
• Automated CI/CD increased release frequency and improved software quality.
• Complete auditability and reproducibility of infrastructure via cloud-native legal document processing and Infrastructure as Code.

“The automated, modular, and secure infrastructure behind this legal AI platform has transformed the way we deliver legal intelligence—accelerating service delivery, improving quality, and ensuring robust compliance.” — Product Manager 

This cloud-native legal AI-powered document automation infrastructure empowers legal professionals with real-time AI insights and streamlined legal document workflows. Enabled by well-architected AWS services, strong DevOps practices, and future-proof automated deployments, the solution supports scalable AI-driven document automation, strict security, and operational excellence, delivering next-generation legal intelligence platforms for the modern enterprise.