Job Description
We welcome talented, high-energy and amazing founders.
¿Le gusta esta oportunidad? Asegúrese de inscribirse rápido, ya que se espera un gran volumen de solicitudes. Desplácese hacia abajo para leer la descripción completa del puesto.
Let's work together .
CTO & Co-Founder - Agentic AI (LegalTech)
Location
Employment Type
Full time
Department
Founders
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.
The Opportunity
We are launching an ambitious new venture in the
Agentic AI
space, and we're looking for a Co‑Founder & CTO to lead product & technology strategy and development from day one. Our vision is to make the legal industry
10× more efficient
through AI.
This is a unique opportunity to build a company with us from the ground up, backed by the resources, expertise, and network of
Antai .
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.
The legal industry is primed for AI‑driven disruption.
Pain points are validated —we already have paid pilots running with top international law firms.
Lead the build : architect state‑of‑the‑art applied AI agents that automate workflows and roles across the legal services lifecycle.
Set the product & tech strategy
and move fast with full autonomy.
Own the upside : significant co‑founder equity.
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.
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. xugodme
Work from our hubs in Barcelona, Madrid, or Mexico City—or stay remote and sync on frequent on‑sites.
#J-18808-Ljbffr
¿Le gusta esta oportunidad? Asegúrese de inscribirse rápido, ya que se espera un gran volumen de solicitudes. Desplácese hacia abajo para leer la descripción completa del puesto.
Let's work together .
CTO & Co-Founder - Agentic AI (LegalTech)
Location
Employment Type
Full time
Department
Founders
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.
The Opportunity
We are launching an ambitious new venture in the
Agentic AI
space, and we're looking for a Co‑Founder & CTO to lead product & technology strategy and development from day one. Our vision is to make the legal industry
10× more efficient
through AI.
This is a unique opportunity to build a company with us from the ground up, backed by the resources, expertise, and network of
Antai .
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.
The legal industry is primed for AI‑driven disruption.
Pain points are validated —we already have paid pilots running with top international law firms.
Lead the build : architect state‑of‑the‑art applied AI agents that automate workflows and roles across the legal services lifecycle.
Set the product & tech strategy
and move fast with full autonomy.
Own the upside : significant co‑founder equity.
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.
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. xugodme
Work from our hubs in Barcelona, Madrid, or Mexico City—or stay remote and sync on frequent on‑sites.
#J-18808-Ljbffr
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