Micro Frontend Architecture
Many teams, one site, no merge wars.
A single frontend shared by many teams turns every release into a negotiation. I split those interfaces into micro frontends that ship on their own schedule — versioned contracts, shared tokens, and a shell whose most interesting feature is stability.
N
remotes, one shell
1
design language
0
release trains
Who it's for
- Organisations with several squads sharing one frontend and one release train.
- Portals where different teams own different areas of the same page.
- Companies already standardised on a design system.
- Rewrites that can't pause delivery while they happen.
What I bring
06 deliverablesComposition at runtime
(01)Module Federation remotes with explicit versions, fallback UI and failure isolation.
Contracts before code
(02)Typed interfaces and version rules so a remote upgrade never takes the shell down.
One design language
(03)Shared tokens and primitives; remotes may differ internally, never visually.
Independent release cadence
(04)Each team deploys on its own clock; the shell stays deliberately dull.
Visibility per remote
(05)Error budgets, performance budgets and rollback plans for every piece.
Extraction, not big bang
(06)Strangler-pattern moves from the monolith, one vertical slice at a time.
What work is covered
- Module Federation and runtime composition
- Design tokens and shared primitive packages
- Routing, authentication and state boundaries across remotes
- Per-remote CI/CD, versioning and rollback
- Performance isolation with budgets
- Strangler-pattern migration from monoliths
How it works
4 steps- 01
You bring the mess
Half a spec, a bug list, or a migration that stalled — all valid starting points.
- 02
I cut the first slice
One small piece with real value, agreed in writing before anything else moves.
- 03
Ship in the open
Working software every week, reviewed with your team — not a reveal at the end.
- 04
Hand over the keys
Code, docs and conventions stay with you; I stay reachable if you want that.
Questions
Do we need micro frontends?
Only when teams outgrow a shared release train. One team, one product — a clean monolith is cheaper to own, and I'll say so.
What's the stack?
React and TypeScript are the default, Vite for builds, Module Federation for composition. Contracts stay framework-agnostic so a remote can choose otherwise.
How do you keep it from becoming a maze?
Contracts, shared tokens, a single owner for the shell, and observability per remote. Anything undocumented doesn't ship.
Can we migrate piece by piece?
That's the plan: extract one area, run it beside the monolith, move the next. Delivery never stops.
Does it slow the page down?
The shell stays minimal, each remote carries a budget, and shared dependencies are deduplicated by version — not loaded five times.
Brief
Send the
brief.
A half-formed problem works. Pick the closest reason and write three sentences — you get the smallest useful first step back.
Why are you reaching out?
What are you trying to solve? The messier, the better.