AI Engineer

AI Engineer 🏢 About Juryo At Juryo we are building the AI voice operating system for B2C law firms. Our agents qualify, sell, onboard, support clients and handle collections. They already work with more than 30 law firms in Spain and the UK, and in 7 months we have gone from 0 to €1M ARR. 💼 The role Our agents talk to thousands of people every week: someone who just had an accident, someone drowning in debt, someone trying to get their papers in order. Every conversation either moves a case forward or loses it. We are looking for AI Engineers to make our agents the best in the market at that. What is an AI Engineer at Juryo? You own how our agents think, talk and decide. Not demos, real production calls with real clients, where latency, tone and a single wrong tool call make the difference between a signed client and a hang up. We build AI native: you’ll direct coding agents to ship faster and spend your time where your judgement matters. If you’ve shipped LLM products that real users depend on, or you’re obsessed with getting there, this is for you. What you’ll do - Design and improve our agent architecture: prompting, tool calling, memory, multi agent flows across voice and WhatsApp. - Build the evals and testing that tell us if an agent is getting better or worse, before a client notices. - Push latency down and naturalness up in voice: turn taking, interruptions, voices, speech recognition in Spanish and English. - Turn what our Forward Deployed Engineers learn on the ground into reusable agent components, so every new firm starts from something better. - Stay on top of models and providers, test what’s new and decide what goes into production. What we’re looking for - You’ve built and shipped LLM based products in production, not just prototypes. - You know how models fail: hallucinations, prompt injection, broken tool calls. And you know how to measure and fix it. - You’re comfortable writing code: TypeScript or Python, APIs, webhooks. - You’re AI native. You use coding agents daily and know when not to trust them. - You’re hungry to work. We’re a team that wants to make its mark, and we put in the hours. - You speak English fluently. Spanish is a big plus, since most of our agents speak it. - You live in Barcelona or are willing to move here. We work from the office, 100% on site. - Nice to have: multimodel AI experience What we work with TypeScript, Python, ElevenLabs, Retell, OpenAI, Anthropic, PostgreSQL, webhooks, Vercel. If you know some of them, great. If not, they can be learned: we care more about how fast you learn than about what your CV says. What we offer - Joining a rocket ship as part of the founding team, with still a lot left to build - A small, demanding team with a great vibe, where you’ll learn in one year what would take you five anywhere else. - Freedom to do things your way, without layers of approval. - Practically unlimited tokens to build with the best tools out there. - Market salary + equity.