CTO & Co-Founder - EdTech AI

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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 a new venture in the EdTech AI space , and we're looking for a Co-Founder & Chief Technology Officer (CTO) to lead product & tech strategy and development from day one. Our vision is to make tutorship effective and accessible for all, by delivering a highly personalized, engaging, and efficient learning experience, powered by AI.

This is a unique opportunity to co-build a company with us from the ground up, backed by the resources, expertise, and network of Antai Ventures.

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.

• Collaborate with the co-founders and executive team to define the product’s technical vision and roadmap, ensuring alignment with business strategy.
• Build and lead a world-class engineering team across backend, frontend, and data—fostering a cloud-native, continuous delivery mindset and ensuring professional growth.
• Architect a scalable, resilient, and secure technology platform with freedom to choose between monolith, microservices, serverless, and other modern patterns.
• Select the right technology stack for both backend and frontend applications, optimizing for speed, reliability, and scalability.
• Lead development with strong knowledge of software design principles, particularly Domain-Driven Design (DDD) and SOLID principles.
• Oversee the design and deployment of a robust data processing pipeline, managing ingestion, transformation, and storage for high-volume use cases.
• Champion engineering excellence, continuous improvement, and agile methodologies across the product lifecycle.
• Act as a tech-business bridge, communicating complex ideas clearly to non-technical stakeholders and collaborating closely with the CEO and executive team.
• Foster a culture of curiosity, ownership, and proactive problem-solving across the tech team.
• 8+ years of experience as a Software Engineer, ideally in backend technologies (Java / Spring or PHP / Symfony preferred).
• Proven leadership experience as a Tech Lead or CTO in a startup or fast-growing digital company.
• Strong grasp of Cloud Native environments : Docker, Kubernetes, microservices, service mesh, infrastructure-as-code.
• Expertise in designing and scaling data architectures, including pipelines for stream / batch processing and data warehousing.
• Deep understanding of software architecture, testing, design patterns, and team workflows in agile development environments.
• Track record of hiring, mentoring, and scaling high-performing engineering teams.
• Entrepreneurial mindset and hands-on, get-it-done approach.
• Excellent communication and interpersonal skills—able to translate tech into business.
• Fluency in both English and Spanish.
• Bonus : Experience in EdTech or similar consumer products and building AI-first digital products.

What We Offer

If you're a tech-driven entrepreneur ready to build the next big thing in EdTech, let’s talk.

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