Co-Founding CTO

ABOUT THE ROLE This is a co-founder-level CTO opportunity at an early-stage AI-powered smart home intelligence startup, where you'll own the full technical vision from architecture through team-building. Your work will directly shape how properties detect anomalies, optimise energy usage, and manage connected systems — at scale. WHAT YOU'LL DO - Own and continuously evolve the technical architecture across IoT, cloud, and AI/ML layers. - Lead and grow the engineering team, including hiring, mentoring, and setting engineering culture. - Drive the product roadmap from a technical perspective, balancing long-term innovation with near-term execution. - Write production code and solve critical technical problems hands-on alongside your team. - Represent the technical vision to investors, partners, and external stakeholders. WHAT WE'RE LOOKING FOR - 10+ years of software engineering or technical leadership experience, with 3+ years in senior technical leadership roles. - Proven 0→1 startup experience as a co-founder or early-stage CTO — not an exclusively large-company background. - Strong IoT and embedded systems background with hands-on experience shipping real products. - Cloud architecture expertise, preferably AWS, with a track record of designing and deploying scalable systems. - Practical AI/ML product experience applied to production systems. - Hardware and software crossover experience, with fluency across both embedded and software systems integration. - Hands-on coding ability — you're comfortable jumping into the codebase, not purely managing. - Familiarity with the smart home, building tech, or energy management domain is a plus. - German or Spanish language proficiency is a plus. - Comfortable working with a stack that includes React, Docker, Kubernetes, AWS, Raspberry Pi, ThingsBoard, and AI/ML tooling. COMPENSATION & BENEFITS - Salary range: €60,000–€100,000 annually, discussed case by case. - Co-founding equity up to 5% via an earn-in structure. - Visa sponsorship is not available. LOCATION On-site role primarily based in the Balearic Islands, Spain, with ties to Munich, Germany. Multiple Spanish and German city hubs considered.