# Scaling a Javascript Application from 0 to a Brazilian users

Building a startup is one challenge; scaling it is a whole different game. Dan Neciu, Staff Engineer at CareerOS, shares a practical, experience-driven story about growing a JavaScript app from zero to thousands of users in over two years.

This talk dives into real technical hurdles they faced, solutions they applied, and lessons learned along the way. If you want honest insights on scaling JavaScript applications in the real world, this session is for you.