Chief Technology Officer (Madrid)

Overview We’re building the AI workforce for Spanish trades — climatización, fontanería, electricidad, solar. We answer calls, handle Whats App, and book jobs directly into the operator’s CRM. One HVAC operator deployed in Catalonia, ten more by year‑end. The category just got real: Eleven Labs opened a Madrid office last week, Hey Diga raised €1 M from KFund in December, and Avoca raised $125 M at a $1 B valuation building this in the US. The Spanish trades vertical is a nine-month window. I'm hiring the engineer who closes it with me. The Role You’ll own engineering end-to-end, starting as Founding Engineer with a clear path to CTO as we hire under you. Core Responsibilities Telephony + Whats App infrastructure: Telnyx/Twilio integration, SIP trunking, number porting from Movistar, Vodafone, and Mas Orange without service interruption;
Whats App Business API onboarding via 360dialog. Multi‑channel orchestration so calls, Whats App, and Google Business share one conversation co...