I've always been impressed by Discord's engineering culture and think they made most of the right decisions regarding their tech stack.<p>What other startups got their tech stack right?
Zerodha. They are the biggest stock broker in India with a team of less than 40 people. Check out their tech blog for their tech philosophy: <a href="https://zerodha.tech/blog/hello-world/" rel="nofollow">https://zerodha.tech/blog/hello-world/</a><p>Also, WhatsApp with their choice of Erlang. <a href="https://www.google.com/amp/s/www.wired.com/2015/09/whatsapp-serves-900-million-users-50-engineers/amp" rel="nofollow">https://www.google.com/amp/s/www.wired.com/2015/09/whatsapp-...</a>
WhatsApp. Rick Reed’s “That’s Billion with a B” presentation is a good glimpse into their own view of it <a href="https://youtu.be/c12cYAUTXXs" rel="nofollow">https://youtu.be/c12cYAUTXXs</a>
Slack using php.<p>Most people recoil from it but their reasons were sound and they played well off its strengths and planned for and mitigated its weaknesses.