Achievements
- Co-founded Airweave in 2025, raised $6M after Y Combinator X25 batch
- Led development of open-source tool transforming app data into agent-ready knowledge
- Participated in Y Combinator’s X25 batch, a major startup milestone
- Built AI to enable smarter, more accessible productivity tools across apps like Google Drive, Slack, Notion
- Former AI engineer at Attendi and researcher at Amazon Berlin, ILLC, IBM Amsterdam
- At 30, recognized as a rising talent in the AI startup scene
Can we talk about Lennert Jansen
This legend right here is Lennert Jansen – this guy’s a total badass in the AI startup world. He’s only 30, but he’s already made some serious waves. Originally from Curaçao but now chilling in Amsterdam, Lennert’s the kind of guy who’s always been obsessed with tech, coding, music, and languages – basically a true geek at heart but with a vision way bigger than just messing around on his laptop.
So, here’s the scoop: he jumped into the startup scene with Neena, which later pivoted into Airweave, the thing he’s best known for now. Airweave is straight-up significant. It’s all about making AI agents smarter and more useful by letting them tap into data from apps like Google Drive, Slack, Notion – basically, all your productivity tools. The idea is to turn all that messy app data into something agent-ready, so AI can actually do real work without you babysitting everything. Imagine having an AI that can search, understand, and act on your data across all platforms – that’s what Airweave is doing.
And get this – they started Airweave in 2025 in San Francisco, co-founded with Rauf Akdemir. They crushed YC’s X25 batch, which is a big deal because YC is the gold standard for startups. After finishing YC, they managed to raise $6 million – no small feat. That shows investors saw the possible in Lennert’s vision. Plus, their open-source tool has been super well received because it’s the real deal: transforming all that app data into something AI can actually use.
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Talk to herLennert’s story isn’t just about building cool tech. It’s about his wild process-going from an AI engineer at Attendi, doing research at Amazon Berlin, ILLC, IBM Amsterdam, to co-founding a startup that’s pushing boundaries. The guy’s driven by pure passion for AI and shaking things up. He’s not in it for a quick buck; he genuinely wants to change how AI interacts with our digital lives, making it more accessible and useful.
And he’s got this cool mix of skills and interests – loves music, coding, writing, and languages. It’s like he’s got this creative side that fuels his technical work, which is probably why he’s been able to come up with such original ideas.
Long story short: Lennert Jansen is a young, super talented AI engineer turned founder who’s already making serious moves. His process from Curaçao to Amsterdam, then to Silicon Valley, shows a guy who’s relentless, curious, and not afraid to jump into the deep end. He’s building the future of AI-powered productivity tools – and honestly, he’s just getting started. No cap, this guy’s one to watch.

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