Senior Backend Engineer – Python & AI About the role We are looking for a Senior Backend Engineer to join an AI Engineering team within a large international technology environment. In this role, you will design, build, and operate robust Python backend services that power AI-enabled applications and reusable engineering capabilities across a complex enterprise ecosystem . This is a highly hands-on senior individual contributor position, focused on solving real production challenges , making sound architectural decisions , and turning AI and data-science capabilities into secure, reliable, scalable, and maintainable software. You will take ownership of backend services from initial design through production operation , working closely with Data Scientists, Product Managers, Platform Engineers, Security Specialists, and Architects . If you enjoy building production-grade Python services , designing APIs and distributed systems , working with AWS , and integrating AI/LLM capabilities into real-world applications, this could be a great fit. What you'll do Design, build,



and maintain scalable backend services and APIs using Python Own backend services end-to-end, from architecture and implementation through deployment and production operation Integrate AI models , Large Language Models (LLMs) , and Machine Learning services into production systems Define service boundaries , data models , persistence strategies , and integration contracts Design resilient distributed systems with appropriate failure handling , retries , fallbacks , rate limits , and asynchronous processing Work with relational databases , data modelling , schema evolution , and persistence strategies Deploy and operate backend services in AWS cloud environments Design services with reliability , security , observability , performance , and cost in mind Handle production AI concerns such as latency , structured outputs , sensitive data , model failures , and external API limitations Improve automated tes

📌 Senior python backend engineer (Cantabria)
🏢 Capitole
📍 Cantabria