Bill Moorier

Bill Moorier

Y Combinator Logo Batch: W11

Achievements

  • First engineering hire at Justin.tv, helped build core tech for Twitch
  • Built the original chat backend and first iOS app for Twitch
  • Contributed to Twitch's growth from startup to major live streaming platform
  • Worked at Macrovision developing internet antipiracy tech before Twitch
  • Part of Y Combinator W11 cohort, supporting startup growth and community building

Ever heard of Bill Moorier

Aight, so peep Bill Moorier, this dude is the real deal in the tech startup world. So, he’s a YC W11 alum, which means he jumped into the game right around the time everyone was talking about YC as the place to be if you wanna crush it. But what really sets him apart? His track record.

Bill started out in the trenches as a software engineer, like, the guy’s been building stuff since day one. Before he even got into YC, he was at Macrovision, helping build internet anti-piracy tech, pretty hardcore, right? But his big break came when he jumped into Justin.tv as the very first engineering hire. Think about that, he was there from the start, building the foundation of what would become Twitch, one of the biggest live streaming platforms out there.

He built the core tech that made Twitch tick, like the original chat backend and the first iOS app. That’s huge. We’re talking about a guy who’s not just coding in the background; he’s creating the backbone of a platform that changed how millions connect and share content. He stayed there from 2007 all the way till 2018, almost a decade of shaping something that became a cultural phenomenon.

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Now, here’s the kicker: he’s not just some coder who jumped around. This guy’s got a deep understanding of what it takes to build something from zero to hero. His process shows what’s possible when you’re obsessed with tech, when you’re willing to jump into the deep end, and when you’re all about creating something that sticks. It’s about the grind, the early days, building the tech that nobody sees but everyone relies on.

And even after Twitch, he’s still in the mix, playing a role in the YC system, helping grow startups, and really contributing to the community. He’s the kind of guy who’s been through the trenches, seen the ups and downs, and still keeps pushing forward.

Basically, Bill Moorier is a prime example of the tech engineer turned big change. His story isn’t just about coding; it’s about building something that lasts, about the hustle, and about having an effect when nobody’s watching. No Cap, this guy’s process is a masterclass in what it really means to be an early tech pioneer.

Founder ID: 108215

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