Marco Dewey

Marco Dewey

Y Combinator Logo Batch: X25

Achievements

  • Cofounded and CTO of Jazzberry, a Y Combinator X25 startup revolutionizing bug detection with AI
  • Graduated with a Master's in software testing from Stellenbosch, thesis on using LLMs for automated test suite generation
  • Built a team with a decade-long partnership with Mateo, who has a PhD in reinforcement learning and formal methods
  • Leading innovation in AI-powered software testing, integrating code running in secure sandboxes with GitHub workflows
  • Founder with a deep academic background and practical startup experience in AI and software testing
  • Captain of the Detroit Mechanix, demonstrating leadership and teamwork on and off the field

Who is Marco Dewey

Listen up, here’s the deal with Marco Dewey. This guy is the real deal – a tech whiz, a startup junkie, and apparently, a frisbee champion too. Basically, he’s one of those folks who jumps into big problems and just crushes it.

So, Marco’s the cofounder and CTO of Jazzberry, a YC batch X25 startup, and they’re all about using AI to find bugs in software. Think about that – running code in sandboxes, integrating with GitHub workflows – they’re making bug hunting way smarter and faster. No bullshit, this is some advanced shit that could totally change how devs work.

But here’s the thing – he’s not just some random tech guy. He recently graduated with a Master’s in software testing from Stellenbosch, and his thesis was about using LLMs (like GPT) to generate automated test suites. That’s some deep tech – the kind of stuff that shows he’s not just playing around, he’s genuinely pushing the boundaries of what AI can do in the dev world.

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And get this – he’s been friends with his cofounder Mateo for over ten years. Mateo’s got a PhD in reinforcement learning and formal methods, so these two are basically the perfect combo. Marco brings the hands-on coding, the startup hustle, the passion for AI, and Mateo brings the deep research chops. Together, they’ve built something that’s not only original but grounded in real expertise.

Oh, and if you think that’s all, hold up – Marco’s also the captain of the Detroit Mechanix, a pro ultimate frisbee team. Like, this guy’s got skills on the field too. That says a lot – he’s a leader, a team player, someone who’s competitive and knows how to crush it in different worlds.

What does all this tell me? Marco’s got mad motivation. He’s someone who refuses to settle, always jumping into new tech and fresh problems. From academia to startups, frisbee fields to AI labs, he’s all about pushing limits and making a real impact. He’s the kind of founder who’s here to solve real problems, build cool shit, and do it with a team he’s trusted for years – because for him, it’s never just about the money.

Bottom line? Marco Dewey is the dude you wanna watch. He’s got the brains, the passion, and the hustle. He’s out here changing the game in software testing with AI, and honestly, he’s just getting started. No Cap.

Founder ID: 100679

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