Reference Stack

Composable Commerce Architecture — modular from the start

Swap parts without breaking the whole: clear contracts, decoupled services, strong observability.

Discuss architectureView reference stack
Clear ContractsAPIs, events, schemas define communication – not implementations.
ObservabilityTraces, logs and SLOs across services and edges.
PerformanceFast paths for critical journeys; async where possible.

Guiding Principles

Clear Contracts

APIs, events, schemas define communication – not implementations.

Team Independence

Small domains, separate deploys, no lockstep releases.

Observability

Traces, logs and SLOs across services and edges.

Portability

Avoid vendor lock-in; retain exit paths for key services.

Security first

Least privilege, secret hygiene, zero trust at the edges.

Performance

Fast paths for critical journeys; async where possible.

Reference Stack

Typical layers we combine as needed.

Experience
Headless/PWACMSSearch/DiscoveryCDP/Personalization
Domain Services
Cart/CheckoutPricing/PromoCatalog/PIMOrders/OMS
Data & AI
Events/StreamWarehouse/LakeAI ServicesFeature Store
Infrastructure
API GatewaySecurity/IAMCaching/EdgeObservability

Integration Patterns

Workflow Orchestration

Long-running business flows with retries, timeouts, human steps.

Event-Driven

Publish/subscribe for decoupling and reliable reactions.

API Gateway

BFFs, rate limits and auth at the edge.

Search & Discovery

Structured + vector for relevant, governed experiences.

Operating Model & Governance

  • ✔ Service ownership and runbooks per domain
  • ✔ Contract tests and repeatable fixtures
  • ✔ Safe deploys with feature flags & rollbacks
  • ✔ Cost & performance budgets per interface

Let's design a composable roadmap together

Start with 2-3 outcomes, assess current stack and implement changes in phases with early value.

Plan composable roadmap