System Overview

Scale Goal

The architecture is designed to evolve toward 1M users while maintaining reliability, observability, and cost discipline.

High-Level Architecture

flowchart LR
    A[Web and Mobile Clients] --> B[API Gateway]
    B --> C[Core Microservices]
    C --> D[(PostgreSQL)]
    C --> E[(Redis)]
    C --> F[(Search and Analytics Index)]
    C --> G[(Event Stream)]
    G --> H[Workers and AI Pipelines]
    H --> I[(Data Lake and Warehouse)]
    I --> J[Owner KPI Dashboards]

Core Workload Groups

• Synchronous APIs for user-facing workflows.
• Asynchronous workers for crawling, ranking updates, AI generation, and optimization jobs.
• Analytical pipelines for reporting and model features.

Reliability Targets

• API availability 99.9%
• clear rollback strategy for deployments,
• incident playbooks by severity,
• cost and performance monitoring by service domain.