Share an example of the most noticeable project or solution you implemented in your professional activity.

In one of my projects using Node.js, I implemented a real-time data processing and aggregation system for monitoring equipment status in a manufacturing setting. I used WebSocket for receiving data from devices, as well as Redis for caching and message queuing. This significantly reduced data update delays on the client side and increased system reliability.

Example of a simplified WebSocket server code in Node.js:

const WebSocket = require('ws');
const wss = new WebSocket.Server({ port: 8080 });

wss.on('connection', ws => {
  ws.on('message', message => {
    console.log(`Received: ${message}`);
    // Processing and sending data back
    ws.send(`Echo: ${message}`);
  });
});