Own end-to-end supply integrations with SSPs, ad servers, and publishers. Build connectors, parsers, and bid-stream integrations; troubleshoot malformed requests, fill-rate discrepancies, and partner issues. Serve as the technical contact for supply partners, shape inventory strategy, define integration standards and monitoring, and collaborate with exchange, bidder, and product teams. The role combines software development, programmatic protocol expertise, commercial supply knowledge, and operational ownership in an on-site Barcelona startup.

Owns product areas end to end across Publicit’s advertising exchange and customer platform. Responsibilities include building TypeScript and React features with supporting backend work, defining technical direction, managing scope and delivery, gathering advertiser feedback, improving product analytics and conversion metrics, reviewing code, and mentoring teammates. The role is on-site in Barcelona and requires close collaboration across product, engineering, and low-latency advertising infrastructure.