We're a senior engineering team: a CTO with 12+ years, previously at Dream11, and three senior developers. We take AI workflows and real-time platforms past the point where prototypes break.
Book an architecture auditTalk to an engineer
Fixed scope, 10 business days, from $6,000. The fee is credited 100% against your first milestone.
02 · The load arrives
5,000+concurrent connections Illustration
At our previous startup, our engineers built and operated the real-time backend for Cash Rummy, a real-money multiplayer card platform that reached 5,000+ concurrent players in production.
Production, previous startup03 · Where prototypes break
State lives on one node, so scaling out breaks the session.
Out of sync20:04:31 node-b state v1882 != v1891
Sound familiar?
Every model call runs inside the request, one after another.
Backed up20:04:33 llm.call waiting, 212 requests queued
Sound familiar?
Mobile networks drop, and the system treats it as a fresh start.
State lost20:04:36 socket reconnect, no snapshot, state reset
Sound familiar?
A low-confidence result goes straight into the record.
Unchecked20:04:38 extract confidence 0.41, written to record
Sound familiar?
Trace lines are illustrations, not measurements.Check your own backend in eight questions
04 · The fix
State moves to a shared layer, so every server sees the same room.
In syncSlow work comes off the request path, and servers scale out.
FlowingA reconnect resumes from the last snapshot.
ResumedLow-confidence results wait for a person.
Held for reviewReal-time, real-money multiplayer card platform. 5,000+ concurrent players, private lobbies, Redis-backed state, Unity and React Native clients.
Legal-workflow platform: matter workspaces, OCR extraction, explicit state transitions and human review. Used by two practising advocates.
Local-first clinical notes with role-based access and AI Q&A. 8–10 doctors use it. We reached them through an SEO agent we built.
A multi-agent sales assistant with retrieval and confidence-scored escalation to a person. We show it as an architecture sample, openly.
All code is private. We offer code walkthroughs under mutual NDA. On Cash Rummy the server is authoritativeClients send what they want to do. The server decides what happened and tells everyone, so no client can cheat or drift.; the case study explains why.
No sales layer, no junior bench. A CTO and three senior developers.
12+ years. Previously at Dream11.
8–10 years.
8–10 years.
8–10 years.
Between them, the developers cover backend architecture, Python and FastAPI, Node.js, distributed systems, real-time sync with Socket.io and Redis, and performance.
Fixed scope, 10 business days, from $6,000. We review your code, infrastructure and traces, then deliver a ranked risk map, a target architecture and a costed milestone plan. You keep it whether or not you hire us.
One bounded outcome with written acceptance criteria, agreed before any code is written.
Weekly demos, a written update every day, code in your repository from day one, and a handover pack with runbooks and architecture docs.
| Offer | Duration | Price |
|---|---|---|
| Architecture audit | 10 business days | $6,000 · £4,800 · €5,500 |
| Real-time scaling audit | 10–12 business days | $7,500 · £6,000 · €6,900 |
| Workflow discovery sprint | 2 weeks | $5,000 · £4,000 · €4,600 |
The fee is credited 100% against your first milestone. Our first three clients get 25% off in exchange for a case study.
Eight questions, about 90 seconds. You get a readiness score and your top three risks in plain English. Nothing is stored.
Send a short description of the system and the deadline. An engineer, not a salesperson, replies within one business day.
Or email us directly at support@sirendesk.com.