Real-time that survives reconnection.
Collaborative editors, live dashboards, presence, chat, notifications and event streams — engineered with the realities of networks, reconnection and conflict resolution treated seriously.
The problem we solve
Real-time looks easy in a demo and gets hard the moment two users edit the same document on flaky Wi-Fi. Reconnection, ordering, presence, conflict resolution, server fan-out, backpressure — the things that fail under real load. We've shipped collaboration and live systems at scale and we know what breaks first.
What we ship
- 01WebSocket and Server-Sent Events backends with reconnection
- 02Presence, cursors, live selection and awareness primitives
- 03Collaborative editing with CRDTs (Yjs, Automerge)
- 04Operational transform where CRDTs don't fit
- 05Live dashboards driven by streams, not polling
- 06Chat and messaging with delivery, read and typing receipts
- 07Push notification fan-out at scale
- 08Event streaming with Kafka or Redpanda
- 09Backpressure, rate limiting and graceful degradation
- 10Observability tuned for long-lived connections
What you receive
- Real-time backend with documented invariants
- Client libraries handling reconnection and offline gracefully
- Load-test report against realistic concurrent-user scenarios
- Runbook for the failure modes specific to real-time systems
Stack we reach for
Ideal for
- → Collaborative tools (docs, design, project management)
- → Live dashboards and operational tooling
- → Trading and finance interfaces requiring fresh data
- → Multiplayer features in SaaS products
How an engagement runs
- 01
Architecture
Connection model, state model, fan-out and persistence chosen for your scale. Trade-offs written down.
- 02
Foundations
Reliable transport, reconnection, presence and observability — the boring layer that everything sits on.
- 03
Feature delivery
Collaboration, chat, notifications or whatever specific real-time surface you need, built on the foundation.
- 04
Load test & launch
Tested under realistic concurrent load before users see it. Documented failure modes.
How to engage
Prototype
Proof of architecture on your specific scenario before committing to the full build.
Real-time Build
Production real-time feature shipped end-to-end with documentation and load-test evidence.
Frequently asked.
01Do we need our own infrastructure or can we use a SaaS?
Both are valid. Liveblocks, PartyKit and Cloudflare Durable Objects cover many cases at lower operational cost. Self-hosted makes sense for specific scale, compliance or cost reasons — we will tell you which fits.
02How do you handle offline?
Depends on the feature. For collaboration we use CRDTs that merge offline edits cleanly; for chat we queue and replay; for dashboards we make staleness visible to the user.
Have a problem worth solving well?
Tell us the outcome you want. We'll tell you what it takes — honestly, within a week, in writing.
Start a conversation