Architecture for systems that already have users
Greenfield architecture is easy. We work on the other kind: a system in production, with revenue on it, that has to change shape without a rewrite and without a weekend of downtime.
- 01Every deploy is a small ceremony and someone holds their breath.
- 02One service failure takes down features that have nothing to do with it.
- 03Traffic tripled and the fix so far has been a bigger instance.
System redesign
We map what you have, find the coupling that hurts, and draw a target state you can reach in increments — not a big-bang rewrite.
Migrations
Database moves, service splits and platform changes executed with dual writes, backfills and a rollback path at every step.
Event-driven design
Queues, outbox patterns and idempotency where they genuinely reduce coupling, and plain synchronous calls where they don't.
SLOs & observability
Define what 'working' means numerically, instrument it, and alert on that instead of on CPU graphs nobody reads.
- Current-state and target-state architecture documents
- Sequenced migration plan with rollback at each step
- SLOs, dashboards and an alerting policy
- Hands-on implementation with your team, if you want it
Do you do the work or just advise?
Both. Some clients want a plan their team executes; others want us in the repository. We're comfortable either way and price them differently.
Will you tell us to switch to microservices?
Almost never. Most teams we meet need a well-structured monolith and two extracted services, not twenty.
How do you start?
With an audit — two weeks, fixed price, and it produces a document that's useful even if you never hire us again.