Software Engineer (£100-130k + Equity) at Joinkult.ai

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This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network

The next step is to speak to Jack.

Job Title: Software Engineer

Salary: £100k-130k + Equity

Company Description: Joinkult.ai – Building a real-time AI copilot for gamers

Job Description:

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.

Location: London, UK

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.

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.

The ideal candidate:

• 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.

Who are Jack & Jill?

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.

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.

Next steps

Step 1. Visit our website.

Step 2. Click 'Talk to Jack'.

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.