Founding Engineer - Voice AI Platform

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 Founding Engineer Salary £180k + Equity Company Description Well-funded Voice AI startup Job Description You will lead the development of a production-grade voice intelligence platform designed for complex, real-world environments. By bridging the gap between spoken conversation and structured data, you will build robust ASR pipelines and multi-tenant systems that solve critical operational challenges for distributed teams operating in high-noise, high-stakes physical settings. Location London, UK Why this role is remarkable Join as one of the first engineers to architect a voice-first platform where AI is the core product, not just a side feature.The company is backed by high-conviction investors and top-tier VCs, focusing on a massive untapped market within the physical economy.Own the entire technical stack from ASR robustness and LLM-driven intelligence to full-stack platform architecture and native mobile integration. What You Will Do Design and deploy production-grade voice pipelines that handle real-world challenges like industrial noise, accents, and low-latency tradeoffs.Build an intelligence layer that decomposes complex forms into natural conversation flows and maps transcripts back into structured records.Develop scalable, polyglot software across the backend, frontend, and mobile to enable highly configurable workflows for a global client base. The ideal candidate Deep expertise in speech AI, NLP, or ASR with experience deploying robust, high-accuracy models in challenging production environments.Versatile full-stack engineering background with the ability to navigate a polyglot codebase and ship working software at high velocity.A founding mindset characterized by high agency, pragmatic decision-making, and a deep interest in building products that solve complex user workflows. 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. 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. 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.