Josh Cohenzadeh

Yo, have you heard about Josh Cohenzadeh? Dude’s the real deal in the startup world. He’s a tech entrepreneur who jumped into the scene with some serious fire. Started out working at Amazon, which is already no joke, that’s where he cut his teeth, learning the ropes of big tech and scale. But he didn’t stop there. He also rolled with Graphiq, a data viz company that Amazon ended up scooping up, so he’s got that big exit experience under his belt too.

Then, he decided to go all-in on his own thing. In late 2020, he co-founded Emerge Tools with Noah Martin. These guys turned their focus to developer tools, specifically for mobile app optimization and performance. Basically, helping app creators make their stuff run smoother, faster, better, super key in today’s app-driven world. They jumped into Y Combinator’s Winter 2021 batch, which is basically the startup Olympics, a huge stamp of approval. That move really put them on the map.

And man, Emerge Tools crushed it. Their tech was so good that big names like DoorDash, Airbnb, Spotify, Duolingo, Stripe, OpenAI, and Square were using their products. That’s a serious sign you’re onto something. But it gets crazier – in May 2025, Sentry, a giant in error tracking and DevOps, swooped in and acquired Emerge Tools. So, not only did Josh build something super useful, but he also made it attractive enough to get snapped up by a big player.

What’s wild about his story? It’s all about that hustle and real tech chops. He’s been around the block, from the big tech world at Amazon to creating something that literally helps the biggest apps and platforms out there crush their performance. It’s clear he’s driven by a desire to build tools that actually make a difference, not just bullshit shiny apps. His process shows he’s all about the deep tech, quality, and having an effect.

Bottom line? Josh’s story is about that relentless grind, taking lessons from giants like Amazon, then jumping into the startup game with a clear mission. He’s proof that if you got the skills and vision, you can build something that matters, get it validated by YC, and even sell it to a major player. He’s an inspiration for anyone who’s sick of bullshit and just wants to build real tech that changes the game.