As the second engineer at Kult, you will build a real-time AI voice assistant that watches gameplay and provides expert advice without needing an alt-tab. You will orchestrate complex LLM pipelines, develop low-latency voice interactions, and scale a deep game knowledge engine to enhance the experience for players across every genre.
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London, UK£100k-130k + Equity
Featured roleLondon, UK£100k-130k + Equity
Software Engineer at Joinkult.ai — AI Gaming Copilot
Kult is building a real-time AI copilot that watches your screen and talks to you, providing expert gaming advice so you never have to alt-tab to a wiki again. As the second engineer in this London-based startup, you'll tackle high-speed voice interaction, computer vision, and complex LLM orchestration. If you're a high-level gamer and a TypeScript expert ready to define the future of AI in gaming, this founding-level role offers the chance to build a product players truly love from the ground up.
Overview
Why this role stands out
Company
Joinkult.ai - Building a real-time AI copilot for gamers
Responsibilities
What you will do
- Design and implement real-time voice interaction systems that feel natural and responsive enough for high-stakes competitive gaming environments.
- Architect a massive knowledge engine that extracts and models complex game mechanics, items, and strategies from diverse, unstructured data sources.
- Develop computer vision systems to recognize game states and player context in milliseconds, delivering proactive assistance through natural conversation.
Candidate profile
Who this is a fit for
- Expert-level TypeScript full-stack skills with deep experience in Node.js, React, and Postgres, capable of owning features from schema to UI.
- Proven experience building with LLMs, specifically orchestrating multi-step reasoning, prompt engineering, and managing context assembly under strict latency constraints.
- A dedicated gamer with deep domain expertise in RPGs, strategy, or competitive titles who intuitively understands what players need mid-session.
What makes it remarkable
Why this role is remarkable
- Join as the second engineer and founding team member, directly shaping the technical architecture and product direction from the ground up.
- Work at the absolute bleeding edge of AI, integrating real-time computer vision, voice pipelines (WebRTC), and complex RAG architectures for gaming.
- Build a product for a passionate global audience of gamers, solving high-speed interaction challenges that haven't been solved in the industry yet.
Jack & Jill
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.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack