London

June 2–3, 2026

New York

September 15–16, 2026

Berlin

November 9–10, 2026

LeadDev AI Hackathon

AI coding is changing quickly – this is your opportunity to see how far you can push it in a fast, collaborative hackathon.

We’re bringing the LeadDev AI Hackathon back for LDX3 London.

Who should apply

Whether you’re a founder, a developer, engineering leader or just AI-curious, we’re creating a space where you can experiment, learn, and grow. You don’t need to be attending the LDX3 London event to apply or join in.

You should have some AI experience already – that could mean working on a startup, building side projects, or simply a passion for exploring new tools.

Your proposal doesn’t need to be fully formed – we’re looking for curiosity, creativity, and the drive to experiment.

What to expect on the day

  • Opportunities to collaborate, learn, and share your progress
  • Hands-on building session with access to free credits for a range of AI tools 
  • Live feedback and “unblocking” support from AI experts and peers 

The fun part

​Two exciting awards up for grabs (voted by your fellow builders):

  • Innovation Champion – Most groundbreaking AI solution
  • Customer’s Choice Most-loved product

And that’s not it! Each member of the two winning teams will win 2 tickets to any LeadDev event in 2026/7. Tickets are each worth approximately £1,500.


Hosted by:

Yenny Cheung

Bluefish
VP of Engineering


Apply to be part of the next LeadDev Hackathon in London.

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