Event-sourced & CQRS systems
Event-sourced domains and CQRS query models that stay operable: audit-friendly history, evolvable streams, and query sides teams can trust.
Founder-led. Fixed scope. Ownership left with your team.
The Problem
Event sourcing and CQRS are powerful and easy to misuse. Teams ship write models without operable projections, or projections that cannot evolve safely under audit and load.
Who This Is For
- Teams building domains that need history, audit, or complex temporal queries.
- Leaders recovering a half-finished CQRS estate that only works for demos.
- Systems where read models lag, drift, or block every schema change.
What We Deliver
Patterns that hold in production, not conference sample apps.
-
Event-sourced domain design
Aggregates and boundaries matched to real business processes.
-
CQRS query-side models
Read models you can rebuild, reason about, and version.
-
Audit and history queries
History that answers business and compliance questions without heroics.
-
Evolution and operations
Stream and projection change without freezing releases.
How We Work
Three stages. You keep the system when we leave.
-
1
Map the domain
What must be true, what history matters, what can stay CRUD.
-
2
Shape write and read
Bounded events, projections, and failure modes.
-
3
Operate and evolve
Rebuild paths, versioning, and ownership with your team.
What You Leave With
- A domain model that matches how the business actually works.
- Query sides that stay honest under change.
- Operational playbooks for rebuilds and evolution.
Discuss your event-sourced system
Share domain shape, pain points, and load. We reply with a technical read. Free, no obligation.
Or email info@mayordomo.co.uk with a short outline.