As the second engineer at this London-based startup, you will build a real-time AI copilot that watches gameplay and interacts via natural voice. You will solve complex challenges in computer vision, low-latency voice pipelines, and LLM orchestration to provide gamers with expert-level knowledge without ever needing to alt-tab.
Software Engineer at Early-stage AI gaming startup
Are you a gamer and an expert in AI? Join an early-stage London startup as their second engineer to build the first real-time AI copilot for gaming. This isn't just another wrapper; you'll be building low-latency voice pipelines, visual state recognition, and deep knowledge engines that watch gameplay and provide expert advice in real time. With a package of £100k-£130k plus founding equity, this is a rare opportunity to define the technical foundation of how AI interacts with the multi-billion dollar gaming market. If you're ready to move beyond calling APIs and start orchestrating complex AI systems for a product you’d actually use, this is the role for you.
Overview
Role overview
Company
Joinkult
Early-stage AI gaming startup building real-time voice copilots
Responsibilities
What you will do
- Architect and scale a knowledge engine that extracts deep game mechanics and strategies from diverse, unstructured data sources using RAG and vector search.
- Develop real-time visual understanding systems to recognize game states and player needs in milliseconds using OCR and scene understanding.
- Implement high-performance voice interaction pipelines using WebRTC and STT/TTS to ensure natural, zero-latency conversational assistance during intense gameplay.
Candidate profile
Who this is a fit for
- Senior-level expertise in TypeScript, Node.js, and React with a proven track record of shipping full-stack features from schema design to UI.
- Deep hands-on experience building with LLMs, including multi-agent orchestration, prompt engineering, and managing context assembly under strict latency constraints.
- A dedicated gamer with deep domain knowledge of complex RPGs or competitive titles who understands the specific information needs of players mid-session.
What makes it remarkable
Why this role is remarkable
- Join as the second engineer working directly with the founding technical lead to define the core architecture of a category-defining AI product.
- Build at the bleeding edge of AI, integrating multi-modal models, real-time computer vision, and low-latency voice interaction for a highly engaged gaming audience.
- Influence every layer of the product and engineering culture in a fast-moving, early-stage environment where your decisions directly shape the company's trajectory.
Jack & Jill
How Jack & Jill work together
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
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.