We’re hiring a Founding Senior Back End Engineer — someone who wants to design, build and own the entire backend and systems architecture. This is not a maintenance role. It’s a founding role, with high phantom-share compensation, where you will shape the core platform that powers real-time AI assistants used by millions of visitors across malls, airports, stadiums and resorts. You'll own the backend, APIs, microservices, data flows, real-time orchestration, and ML integrations end-to-end —ensuring performance, security, and scalability as we expand across international portfolios. This role sits at the intersection of AI, product engineering, infrastructure, data architecture, and ML operations. Build scalable APIs, workers, queues, and real-time systems on GCP + Cloud Run + Cloud SQL. Implement integrations with CRMs, CMSs, booking systems, loyalty platforms, and external APIs. Develop backend support for AI agents : retrieval APIs, embeddings, vector DB, inference services.



Build and maintain event pipelines for analytics, ML, and product insights. Ensure system security, observability, monitoring, logging, and CI/CD best practices. Collaborate with Product & AI teams to define technical architecture and implement new features quickly. Own migrations, deployments, environments, CI/CD, and platform reliability. Python SQL API rest Django Type Script Technical 5+ years building backend systems at scale. Strong expertise in Python (Fast API o Django), SQL (Postgres/My SQL), and REST/Graph QL APIs. Experience with microservices and Cloud Run. (Kubernetes, Pub/Sub, queues, caching removed as requested) Experience integrating external APIs (OAuth, webhooks). Familiarity with LLM integrations, retrieval pipelines, or vector DBs (Qdrant) is a plus. #J-18808-Ljbffr

📌 Senior Fullstack Engineer (Barcelona)
🏢 Ingefor
📍 Barcelona