airbyte/docs/understanding-airbyte/tech-stack.md

Technical Stack

Airbyte Core Backend

• Java 14
• Framework: Jersey
• API: OAS3
• Databases: PostgreSQL
• Unit & E2E testing: JUnit 5
• Orchestration: Temporal

Connectors

Connectors can be written in any language. However the most common languages are:

• Python 3.7.0
• Java 14

Frontend

• Node.js 14
• TypeScript
• Web Framework/Library: React

Additional Tools

• CI/CD: GitHub Actions
• Containerization: Docker and Docker Compose
• Linter (Frontend): Prettier
• Formatter (Backend): Spotless