Game Designer - Generative AI - £116K - Global Tech

Principle HR; Greater London; Hybrid; GBP 104,000 - 128,000; Full time

Benefits offered by this job

Hybrid working

Annual leave + bank holidays

Job summary

Principle HR is seeking a Game Designer (Generative AI) to explore new AI-enabled game mechanics and player experiences in Central London. You will build playable prototypes, assess AI capabilities, and shape creative direction within a world-class AI research team.

The role requires a track record in game design, strong prototyping skills in Unity/Unreal/Godot, and a passion for experimentation with AI-driven gameplay. Hybrid working with in-office days in London is provided.

Qualifications

• Shipped titles or end-to-end concept-to-playtest work in game design.
• Hands-on prototyping skills in Unity, Unreal, Godot, or scripting environments.
• Strong focus on game feel, controls, and player agency.
• Curiosity about generative AI and a love of experimentation.
• Ability to run workshops with researchers and engineers.
• Portfolio or prototypes to show us.
• Right to work in the UK.

Responsibilities

• Build quick playable prototypes around new AI capabilities.
• Playtest, break, and tune how the AI behaves.
• Lead brainstorms on new ways AI could change gameplay.
• Turn research ideas into clear mechanics and player loops.
• Show your work and shape creative direction with the team.

Skills

Game design

Prototyping

Portfolio

Generative AI

Tools

Unity

Unreal Engine

Godot

Job description

Game Designer (Generative AI) | £116,000 | Central London, Hybrid | 12-Month Contract PAYE

What happens when game designers get generative AI to play with and the freedom to experiment properly?

That's this role. You'll join a world-class AI research team at a global tech leader. You'll build playable prototypes that explore what AI can do for games. This isn't about shipping a single title. It's about finding the mechanics, player loops and ideas that haven't been possible until now.

What's in it for you

• £116,000 per year, paid weekly (PAYE, inside IR35)
• 12 months contract working at the cutting edge of AI and games
• Hybrid working, with Tuesday to Thursday in central London - 3 days
• Annual leave plus bank holidays
• Real creative freedom across genres, from sandbox simulation to emergent narrative

What you'll need

• A game design track record, with shipped titles or substantial work taken from concept to playtest
• Hands-on prototyping skills in Unity, Unreal, Godot or a scripting environment, so you build your ideas yourself
• An obsession with game feel, controls and player agency
• Curiosity about generative AI and a love of experimenting
• Confidence running workshops and working with researchers and engineers
• A portfolio or prototypes you can show us
• The right to work in the UK

What your week might look like

• Building a quick playable prototype around a new AI capability
• Playtesting it, breaking it and tuning how the AI behaves
• Leading a brainstorm on new ways AI could change gameplay
• Turning research ideas into clear mechanics and player loops
• Showing your work and shaping creative direction with the team