MidFull TimeEN
🌍 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.
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.
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.
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.
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.
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.
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.
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.
