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Sumit Arora

Full-Stack Architect

Brisbane, Australia
January 12, 2026
Technical12 min read

Data Intelligence Platform Architecture

A reference architecture for building modern analytics platforms. From data ingestion to dashboards.

The Problem

Most operational systems are excellent at recording data but terrible at analyzing it. Your CRM tracks every customer interaction, your ERP logs every transaction, but getting answers to simple questions like "what's our customer retention by segment?" requires exporting to spreadsheets and hours of manual work.

A data intelligence platform solves this by extracting data from operational systems, storing it in a format optimized for analytics, and presenting insights through dashboards that anyone can use. This article provides a reference architecture you can adapt to your needs.

The Data Journey

1. Sources
where data lives
2. Ingest
extract & load
3. Store
data warehouse
4. Model
semantic layer
5. Serve
dashboards & APIs
Data flows through this pipeline on a schedule (batch) or continuously (streaming). By the time users see it, it's clean, consistent, and fast.

Reference Architecture

Click any box to learn more
Reference Architecture Template · Contact: sumit@getpostlabs.io
Data Sources
Ingestion
Storage
Analytics
Backend
Frontend
Users
Data Sources
Source Databases
CRM, ERP, etc.
Third-Party APIs
External services
File Sources
CSV, Excel, etc.
Event Streams
Real-time data
Ingestion
Data Connectors
Fivetran, Airbyte
Orchestrator
Airflow, Dagster
ETL / ELT
dbt, Python
Batch or streaming
Storage
Data Warehouse
ClickHouse, Snowflake
BigQuery, Redshift
App Database
PostgreSQL
Object Storage
S3, GCS
Encrypted at rest
Analytics
Semantic Layer
Cube.js, Looker
Metric Definitions
Single source of truth
Query Cache
Pre-aggregations
Sub-second queries
Backend API
API Server
Node, Python, Go
REST / GraphQL
Versioned APIs
Auth & Security
JWT, RBAC
Frontend
Web Application
React, Vue, Angular
Dashboards
Role-based views
Visualizations
D3, Recharts
Users
Executives
Managers
Analysts
Operations
Infrastructure
Cloud
AWS/GCP/Azure
Kubernetes
Managed DB
Object Storage
Monitoring
Secrets
CDN / LB
WAF
CI/CD
IaC
Data Flow: Sources → Connectors → Warehouse → Semantic Layer → API → Dashboards → Users

Key Architecture Decisions

Why separate the warehouse from operational databases?

Operational databases (OLTP) are optimized for fast reads/writes of individual records. Analytical queries that scan millions of rows would slow them down and impact production systems. A separate warehouse (OLAP) is optimized for these analytical workloads.

Why add a semantic layer?

Without it, every dashboard might calculate "revenue" differently. The semantic layer defines metrics once — everyone uses the same formula. It also pre-computes common queries, so dashboards load in milliseconds instead of seconds.

ETL vs ELT?

ETL (Extract-Transform-Load) transforms data before loading. ELT(Extract-Load-Transform) loads raw data first, then transforms in the warehouse. Modern stacks favor ELT — it's more flexible, and warehouses are powerful enough to handle transformations.

Build vs Buy?

For connectors and orchestration, buy (Fivetran, Airflow). For the semantic layer and dashboards, it depends on your needs — embedded analytics tools work for standard use cases, custom development for highly specific requirements.

Technology Options by Layer

IngestionFivetran, Airbyte, Stitch, custom connectors
OrchestrationAirflow, Dagster, Prefect, AWS Step Functions
WarehouseSnowflake, BigQuery, Redshift, ClickHouse, Databricks
Transformationdbt, Dataform, custom SQL/Python
Semantic LayerCube.js, Looker, dbt Metrics, Metriql
BackendNode.js, Python (FastAPI), Go, Clojure
FrontendReact, Vue, Angular, Svelte
VisualizationD3.js, Recharts, Chart.js, Plotly, Superset
InfrastructureAWS, GCP, Azure + Kubernetes / Serverless

The Bottom Line

A data intelligence platform isn't one tool — it's a stack of specialized components working together. The key is separation of concerns: operational systems handle transactions, warehouses handle analytics, semantic layers handle business logic, and frontends handle user experience. Get this architecture right, and you can answer any data question in seconds instead of days.