CTO & Co-Founder - Agentic AI (LegalTech)

PMF in a massive, fragmented €5B+ market (in Spain alone) As a co-founder, you’ll be in the driver’s seat-shaping the vision, setting the pace, and taking ownership. In return, we’ll back you with capital and provide hands-on support across Product, Tech, Design, GTM, Legal, Talent, Finance, and Fundraising to accelerate your journey from 0 to 1. ️ What You’ll Do - Co-craft the technical North Star with the founding team and convert vision into an aggressive, value-obsessed roadmap. - Build hands-on and ship code daily, leveraging the latest AI orchestration techniques (multi-agent workflows, toolformer, dynamic RAG pipelines) and rock-solid engineering practices (DDD, SOLID, ruthless automation) to deliver customer value at record speed. - Recruit, coach, and scale a top-1 % engineering guild spanning backend, frontend, data, and DevOps-shipping product that customers actually use every single week. - Design high-throughput data pipelines to improve our agents while guaranteeing

security and compliance. - Drive a culture of excellence through continuous delivery, rapid experimentation, and metrics-driven improvement. - Move fast, obsess over customer impact, and work tirelessly to turn an ambitious vision in reality. What We’re Looking For - 5+ years of experience as a Software Engineer - Hands-on builder. You prototype quickly and turn ideas into working features in days. - Practical AI experience. You’ve built with modern LLM tools-agent orchestration, RAG, embeddings-and know what works in production. - Curious and smart. You track new research and apply what’s useful. - User-value focus. You measure success by customer impact and time saved, not vanity metrics. - Ownership mindset. You take responsibility for outcomes and think long-term about product and company value. - Bias for shipping. You pick simple solutions, automate routine tasks, and release early and often. - Team builder. You attract and develop strong engineers and foster a supportive, high-standards culture. - Clear communicator. You explain technical trade-offs to both engineers and non-technical stakeholders. What We Offer - Day-1 founding seat. Jump into an ambitious startup from the ground up, with a validated concept and live pilots. - De-risked upside. Build as a co-founder on a path charted by Antai’s successful venture-studio model-capital, playbooks, and network included. - Full-stack operator support. Access Antai’s expert teams in Product, Engineering, Design, GTM, Legal, Talent, and Fundraising whenever you need them. - Significant equity. Own a sizable stake in this venture and optional carry in other Antai portfolio startups. - Founder community & investors. Join a tight network of serial entrepreneurs and top-tier backers who’ve scaled category leaders. - Workspace flexibility. Work from our hubs in Barcelona, Madrid, or Mexico City-or stay remote and sync on frequent on-sites.

About Antai Ventures Antai Ventures is a leading venture studio headquartered in Barcelona, with a strong presence across Southern Europe and Latin America. We team up with exceptional entrepreneurs to build disruptive, scalable companies from scratch. Since 2012, we’ve co-founded 30+ ventures, including Glovo, Wallapop, PlatanoMelon, and PiperAI. Collectively, our startups have raised over $1.5B in funding, generated $3B+ in shareholder value, and created 5,000+ jobs. About Juryo Juryo is building the agentic AI platform for small and mid-sized law firms, starting with high-volume B2C practices (extranjería, LSO, laboral, deudas, civil). Our voice and WhatsApp agents already qualify clients, generate documents, manage cases, and handle billing workflows, delivering over 2× improvement in lead conversion for our customers. We’ve gone from idea to revenue in months: - Multiple paying law firms onboarded - Six-digit ARR - Daily usage (+200 calls/WhatsApps) by real customers - Clear