CTO & Co-Founder - Agentic AI (LegalTech)

Antai Ventures
Barcelona, Spain
5 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience required
5 years minimum
Compensation
€70,000.0 - €90,000.0
Working hours
Regular working hours
Job source

Tech stack

Artificial Intelligence Continuous Delivery DevOps Large Language Models Multi-Agent Systems Backend Front End Software Development Virtual Agents Data Pipelines

Job description

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 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., + 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. Inscribirse en esta oferta Recibir ofertas similares por correo electrĂłnico Al crear una alerta, aceptas nuestros TĂŠrminos y condiciones y PolĂ­tica de privacidad, y el uso de cookies.

Requirements

  • 5+ years of experience as a Software Engineer

About the company

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., Deutsche Telekom AG Barcelona, Cataluña Senior AI Engineer - Agentic Workflows Livewell Barcelona Data & AI Architect Agentic Commerce 90.000 - 150.000 Accenture España Barcelona, Cataluña Volver a la última búsqueda Trabajos ) Cataluña ) Barcelona ) CTO & Co-Founder - Agentic AI (LegalTech) ( volver a la última búsqueda Recibir ofertas similares por correo electrónico No gracias, llévame a la oferta de empleo Al crear una alerta, aceptas nuestros Términos y condiciones y Política de privacidad, y el uso de cookies. Inscribirse en esta oferta

Profesiones

  • TĂŠcnico
  • RecepciĂłnista
  • Administrador
  • Ventas
  • Enfermero

Apply for this position

This job is hosted externally. Click below to view the full posting and apply.

Apply on www.adzuna.es
Prepare application

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

2:17 min

Mapping the maturity roadmap for scaled devops adoption

Dominik Krichbaum Dominik Krichbaum ¡ World Congress 2026 Europe

1:52 min

Structuring and scaling the backend engineering team

Stefan Lingler Stefan Lingler +1 ¡ Coffee With Developers

3:21 min

Navigating the ethical integration of virtual colleagues

Rudi Bauer Rudi Bauer +1 ¡ Cappuccino with HR

40 sec

Introduction to building real-world AI agent solutions

Dennis Zielke Dennis Zielke +1 ¡ World Congress 2025

40 sec

Empowering automated workflows with agentic AI models

Mike Mike ¡ World Congress 2025

3:18 min

Scaling global network engineering through DevOps culture

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