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What Is JAQ Stack?

JAQ Stack (pronounced "jack stack") is a Rapid Application Development (RAD) archetype that combines three proven technologies into a single, cohesive blueprint:

  • J = Java (via Helidon SE – lightweight, cloud-native)
  • A = Angular (modern, full-featured frontend)
  • Q = (No)SQL (default: MongoDB – flexible, developer-friendly) - representing your data layer, whether SQL or NoSQL.

Born from over a decade of real-world development pain, JAQ eliminates boilerplate so you can go from idea to production in hours, not weeks.

Why JAQ?​

Most developers waste time on:

  • Wiring backend + frontend + database
  • Configuring auth, CORS, logging, and health checks
  • Setting up consistent project structures across teams
  • Building repeatable deployment pipelines

JAQ solves this by providing a pre-integrated, opinionated stack with:

  • Standardized project layout
  • Production-ready defaults
  • Built-in testing and observability
  • A clear path to AI integration

Overall Architecture​

  • Frontend: Angular application with built-in routing and state management
  • Backend: Helidon SE microservice exposing RESTful APIs
  • Database: MongoDB for flexible, schema-less data storage
  • Integration: Type-safe contracts, shared validation rules, and unified error handling

All layers are designed to work together from day one—no glue code required.