HartleyCo
Founding Engineer
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Founding Engineer - AI-Native Engine | London | £70K-120K +Equity
I'm working with a well-funded early-stage startup that's rethinking how interactive content is built in an AI-first world. Rather than layering AI onto existing workflows, they're building a new platform designed with AI collaboration at its core.
Having recently closed a multi-million-dollar funding round backed by leading technology and gaming investors, the company is now hiring its first engineers to work directly with the founder as the team expands.
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The role
- Build the core TypeScript platform and developer APIs
- Design systems that AI agents can interact with effectively
- Work on performance-critical rendering and runtime infrastructure across a wide range of devices
- Collaborate closely with the founder and have significant ownership from day one
They're looking for
- Strong React and TypeScript experience (React Native is a bonus)
- A genuine builder with side projects or products you've shipped
- Someone who embraces modern AI development tools and has thoughtful opinions on how to use them effectively
- An interest in games or interactive products, though professional games experience isn't required
- Comfortable thriving in an early-stage environment with lots of ownership
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Compensation
£80K–120K base + meaningful equity
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