Engineering

Scaling Node.js to 1 Million Concurrent Connections

How we optimized the event loop and socket handling for massive real-time financial traffic.

Alex Chen, Lead Architect

·Feb 12, 2026·8 min read

We optimized the event loop and socket handling for massive real-time financial traffic, reaching one million concurrent connections.

#NextJS

Alex Chen

Lead Architect at DMSAI, focused on distributed systems and platform engineering for fintech and healthcare clients.

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