As a Senior AI Engineer at Gizmo, you will build the AI systems powering personalized learning experiences for over 1.5 million users. You will work extensively with LLMs and prompt engineering to create adaptive, gamified content. This role offers the chance to scale a high-growth platform toward reaching one billion learners globally.
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Senior AI Engineer at Gizmo
Join Gizmo.ai, one of the UK’s fastest-growing startups, as a Senior AI Engineer to build the future of learning. If you have 7+ years of experience and a passion for scaling AI systems that impact millions of lives, this is your chance to lead technical innovation in a mission-driven environment.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Gizmo
Role overview
Software
Gizmo is an AI startup on a mission to make learning so easy that anyone can learn anything. We're building Duolingo for Anything - a platform that uses gamification and social mechanics to make learning fun. With over 1.5 million monthly active users and $5M in annual recurring revenue, we’re already one of the fastest-growing startups in the UK. Backed by leading investors, we recently raised $22M in Series A funding to accelerate our vision of helping 1 billion people learn.
What you will do
- Architect and implement sophisticated AI personalization systems using TypeScript and Python to make learning feel natural and engaging.
- Lead prompt engineering strategies and LLM integrations to generate adaptive, high-quality educational content at scale.
- Build and maintain the technical foundation required to transition the platform from millions to billions of global users.
Who this is a fit for
- Possesses 7+ years of software engineering experience with a strong track record of ownership in production-grade systems.
- Demonstrates deep technical expertise in TypeScript, Python, and hands-on LLM implementation or AI/ML integration.
- Thrives in fast-paced startup environments and is able to work from the London office four days per week.
Why this role is remarkable
- Work at a high-growth startup with proven product-market fit, 1.5M monthly active users, and £5M in annual recurring revenue.
- Join a mission-driven team fresh off a £22M Series A round aimed at revolutionizing global education through gamification and AI.
- Solve complex technical challenges including LLM personalization and scaling systems to support hundreds of millions of concurrent learners.
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 Gizmo wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.