Join the founding team as the second engineer building the autonomous backbone for modern law firms. You will scale production systems featuring multi-agent pipelines and durable workflows. Working directly with founders, you’ll ship high-impact features across the full stack to automate client intake, qualification, and case management for major international firms.
Full-Stack Engineer at Juryo
Law firms haven't changed in decades, but this Antai Ventures-backed startup is fixing that with an AI-powered operating system. As the second engineer on the founding team, you'll build autonomous agents that handle the full client lifecycle for major international firms. With the backing of the studio behind Glovo and Wallapop, you'll have world-class resources to disrupt a massive traditional market. If you're a Barcelona-based builder who uses Claude to multiply your output and thrives in a high-intensity, in-person environment, this is your chance to secure founding equity and shape the future of legal tech.
Want to apply for this role?
Jack finds you jobs at companies like Juryo. Talk to Jack to get considered for roles that fit what you're great at.
Location
Barcelona, Spain
Compensation
€45k-€60k + Equity
Company
Juryo
Role overview
Antai Ventures-backed legal-tech startup building an AI operating system for B2C law firms
What you will do
- Design and execute the product roadmap from database schemas in Supabase to polished React components using Next.js.
- Build and refine the AI infrastructure layer, including RAG pipelines and agentic workflows using LangChain and LangGraph.
- Maintain high engineering standards within a Turborepo setup, pushing code to production daily to iterate based on real-time user feedback.
Who this is a fit for
- 3+ years of production experience with TypeScript, React, and Node.js, showing the ability to ship complex, multi-tenant SaaS features.
- Expertise in maximizing output through AI coding agents like Claude or Cursor to manage high-velocity development cycles.
- Local to Barcelona with a hunger for a "9-9-6" hard-charging startup culture and experience in durable workflows or LLM orchestration.
Why this role is remarkable
- Backed by the venture studio behind $1B+ unicorns like Glovo and Wallapop, offering unique access to a world-class startup ecosystem.
- Direct impact on a live, revenue-generating product already delivering 2x lead conversion improvements for top-tier legal clients.
- Founding-stage equity and ownership of technical direction in a high-bandwidth, in-person environment designed for maximum velocity.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.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.
I recruit from Jack’s network and make the intro when I spot a great match.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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
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 your profile’s a match and Juryo wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.