Project description
Our client is an energy solutions provider. Our AI-enabled platform supports operations, tracking and decision-making to optimize large-scale renewable and traditional energy portfolios. We're delivering a key client MVP in February 2027, and the project continues into 2028. Our stack: Ruby on Rails, Node.js/TypeScript and Python services, Vue, PostgreSQL, Snowflake and AWS.

Responsibilities

Work closely with product teams to help define and execute technical criteriaDesign and build backend services and APIs, including system-to-system integrations, on relational dataModel complex, evolving business domains into clear schemas and API contractsShip end-to-end features, including TypeScript frontend workHelp scale AI-native development across the team: shared AI workflows, tooling and CI/CD integration

SKILLS
Must have





Mid-to-senior engineer with strong backend and data fundamentalsProduction experience with relational databases and data/domain modelingProduction experience in one of Ruby (preferred), Node.js/TypeScript (preferred) or Python. Fundamentals matter more than languageExperience designing and building APIsAWS or another enterprise cloud platformAI-native development: daily use of agentic AI coding tools, and experience scaling shared AI workflows across a team and into the development lifecycle, including CI/CDStrong English and communication skills

Nice to have
Building LLM features on enterprise AI platforms (AWS Bedrock preferred)Exposure to energy, utilities or sustainability data

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📌 Full-Stack Software Engineer (AI-Native) (Heroica Puebla de Zaragoza)
🏢 Luxoft
📍 Heroica Puebla de Zaragoza