byteNative

Financial Services Provider

Live Streaming Platform

For a major financial services provider, we built a platform that delivers live events to a massive audience in real time: stable, interactive and fully on brand. We owned the whole stack, from the viewer frontend through the admin panel and the API to infrastructure and deployment.

  • Architecture
  • Frontend
  • Backend
  • Infrastructure
  • DevOps
Realtime · Fullstack

Starting point

A live event for thousands, without a single dropout

The client wanted to broadcast townhall events and product announcements live to employees and customers across Europe. The existing tools didn't scale and couldn't be pulled into their own brand world.

They needed a platform that stays stable under sudden load spikes, allows genuine interaction and fits cleanly into the corporate design. We owned the whole stack, from the viewer frontend to deployment.

By the numbers

  • concurrent viewers10k
  • chat latency<200ms
  • availability99%

Challenge & solution

The biggest hurdle was scaling realtime communication horizontally. Thousands of simultaneous WebSocket connections need to distribute chat, polls and overlays without any noticeable delay.

We went with multiple API instances behind an Nginx load balancer, coupled via Redis Pub/Sub. Nginx handles TLS termination, sticky sessions and load balancing. The reactive frontend stays smooth even on a weak connection.

What the platform can do

Realtime chat

Moderated chat with roles, filters and live reactions for thousands at once.

Live polls

Votes and Q&A in real time, displayed directly in the stream overlay.

Dynamic overlays

Ad overlays, lower thirds and notices can be controlled live from the admin panel.

Technologies used

Frontend

  • React
  • TypeScript
  • Vite
  • Tailwind CSS 4
  • TanStack Query
  • Radix UI
  • Socket.IO-Client

Backend

  • NestJS 11
  • Node.js 24
  • Socket.IO (Redis-Adapter)
  • JWT
  • Express

Infrastructure

  • Nginx
  • Redis-Cluster
  • Let's Encrypt

DevOps

  • Turborepo
  • Docker Compose
  • SSH-Deployment
  • Load tests
  • Git

Take a look at more work that's related in theme or technology.

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