Summary: Join a fast-growing startup building an AI operating system for law firms, taking ownership of key features and scaling existing production systems. Highlights: 1. Work directly with the founding team on high-impact AI solutions 2. Ship daily and iterate based on real-time feedback 3. Shape the way you work and make fast decisions **About Antai Ventures** Antai Ventures is a Barcelona\-based venture studio with presence across Southern Europe and LatAm. We partner\-up and invest in the best co\-founders to build global companies willing to disrupt multi\-billion dollar industries. Since 2012 we have co\-founded \+30 companies including **Glovo, Wallapop, PlatanoMelon,** and **Piper**. Our ventures have raised more than **$1\.5B** in funding, have generated more than **$3B** in shareholders value and currently employ more than **3000** people. **Join the team building the AI Operating System for Law Firms** ---------------------------------------------------------------- Juryo is the next\-generation AI operating system built specifically for high\-volume, B2C law firms. We are tackling one of the toughest challenges in the legal industry: replacing scattered tools, manual bottlenecks, and overloaded staff with a seamless, intelligent platform. We provide law firms with an autonomous workforce and the software in which it runs. Juryo deploys a specialized **team of AI agents** to run the firm's core operations 24/7\. Our intelligent agents seamlessly handle the entire client lifecycle across multiple channels We are a fast\-growing startup making waves in the industry. In just our first few months, we are already working with the biggest law firms in Spain, **have raised money from tier\-1 VCs** and angels and validated our vision in one of the most demanding professional markets. **We are now building the talented team that will scale Juryo into a global platform.** **The Role** ------------ You will work directly with the founding team, taking ownership of key feature verticals and scaling our existing production systems. This is a role for a "builder" who loves high\-bandwidth, in\-person collaboration and wants to see their code impact users immediately. ### **What you’ll do:** * Execute the Roadmap: Translate product requirements into high\-quality code across the entire stack, from database schemas to polished React components. * Build the software layer: Our agents need software to operate on. You will build it. * Scale our AI Infrastructure: Help refine our RAG pipelines and agentic workflows to ensure reliability for legal professionals. * Maintain High Standards: Work within our Turborepo setup to ensure our codebase remains modular, tested, and easy to navigate. * Ship Daily: We value agency. You’ll be expected to push to production frequently and iterate based on real\-time feedback. **Our Tech Stack** ------------------ * Frontend: TypeScript, React, Tailwind CSS, Next.js. * Backend: Node.js, Supabase/Postgres (RLS, Migrations, Triggers). * AI/Data: LangChain/LangGraph, AI SDKs, Vector Databases, OCR processing. * Infrastructure: Serverless functions, Turborepo. **What We’re Looking For** -------------------------- * Hard worker: Does 9\-9\-6 excites or scares you? If it scares you, you’re not the right fit. If not, you’ll fit right in. We are a bunch of hard\-charging people that want to make a dent in the world and will spare no energy to do so * Claude master: You have figured out how to use agentic coding agents to maximize your output. You’re not stuck writing lines of code yourself, but rather mostly supervising/giving direction to Claude (or similar). * 3\+ Years of Production Experience: You know how to build for real users, not just "hello world" projects. * Full\-Stack Fluency: You are equally comfortable debugging a complex SQL query as you are centering a div. * The "Generalist" Edge: You understand multi\-tenant SaaS architecture, security scoping, and how to build for scale. * In Barcelona or Willing to relocate: This is a 100% on\-site role. We believe the best early\-stage products are built in the same room**.** **Preferred Experience** ------------------------ * Experience with Supabase/Postgres (specifically RLS and migrations). * A degree in Computer Science or related study. * Familiarity with Monorepo tooling (Turborepo). * A background in (or a deep hunger for) AI Agent orchestration and RAG pipelines. * Understanding of durable workflows and human\-in\-the\-loop systems. **What we offer** ----------------- * The ride of a lifetime. There are very few companies with this level of ambition and speed of execution in the world, let alone in Spain… * Working alongside fellow ambitious, high\-performing and fun group of people. * The steepest learning curve you can imagine. We are riding at the cusp of a massive technology transformation, maybe the biggest yet. We offer the chance to shape it. * Independence to shape the way you work and make fast decisions. * Above\-market compensation. We believe people should be compensated fairly (above Spanish rates), and that you should be focused on building and not worried about your finances. * Meaningful equity potential. We expect you to “think like an owner”, but that’s because you’ll also be one.