As the first game engineer, you will own the gameplay and engine architecture for an AI-driven 3D world. You'll build generative systems and procedural environments that adapt to each child's needs in real-time. This is a rare opportunity to define the engineering foundation of an entirely new category of interactive education.
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Founding Game Engineer at Pebble
Join Pebble as a Founding Game Engineer to build the world's first generative learning environment for children. Led by former leaders from Synthesia and Google, Pebble is reinventing childhood education through an AI-powered 3D exploration game. You'll own the gameplay engine and procedural systems that bring a reactive AI companion to life. If you're a Unity expert with a passion for procedural generation and AI, this is your chance to define a new category of play for the next generation.
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Location
Remote (United Kingdom)
Compensation
£90k-130k + Equity
Company
Pebble
Role overview
The first generative world for children. As engaging than Netflix, as enriching as private lessons.
What you will do
- Architect and own the gameplay systems, procedural world generation, and progression mechanics within a live Unity-based 3D environment.
- Collaborate with AI engineers to integrate open-ended voice and LLM-driven companion behaviors directly into the real-time game loop.
- Develop high-performance systems and internal tooling to ensure a coherent, responsive experience for children while maintaining strict frame budgets.
Who this is a fit for
- Extensive experience shipping 3D games or real-time products, with deep expertise in Unity (C#) and core engine systems.
- Proven track record building complex procedural or generative systems and managing the performance/memory constraints of live-service games.
- Enthusiastic adopter of AI-driven development workflows who is passionate about creating safe, engaging, and educational digital experiences for children.
Why this role is remarkable
- Founding role with the autonomy to set the architectural standards and engineering culture for a high-potential AI startup from day one.
- Led by an elite founding team including the first product hire at Synthesia (scaled $3M-$100M ARR) and the founder of Neoplants ($25M+ raised).
- Work at the cutting edge of AI and gaming by building complex procedural generation systems where AI is the core product, not just a feature.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Pebble wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.