Mission Act as the execution engine of the team, transforming architectural specifications into robust, efficient, and production-ready code. You will work on building and optimizing a hybrid Node.js–C++ system, leveraging AI tools as a key accelerator to maximize development speed without compromising quality. Mission Act as the execution engine of the team, transforming architectural specifications into robust, efficient, and production-ready code. You will work on building and optimizing a hybrid Node.js–C++ system, leveraging AI tools as a key accelerator to maximize development speed without compromising quality. Responsibilities Develop backend components in Node.js and high-performance integrations with C++ Translate technical specifications into functional solutions and accurately Use AI tools to accelerate development, validation, and code improvement Apply test-driven approaches to ensure robustness and stability Manage and optimize build environments (Docker, Make, CMake) Analyze system performance and identify bottlenecks,



especially in Node.js C++ interactions Refactor legacy code into clean, maintainable, and high-performance solutions Collaborate closely with architecture roles to continuously improve the system Requirements Technical: Strong experience with Node.js development Ability to read, understand, and debug C++ code Experience working in Linux environments Familiarity with build tools and containers (Docker, Make, CMake) AI & Development Hands-on experience with AI-assisted development tools (e.g., Cursor, Claude, or similar) Ability to use AI as a productivity multiplier in software development Experience with iterative development, testing, and validation workflows Profile Strong English communication skills, as you will be working in an international team Execution-driven mindset with strong focus on quality and results Comfortable working in fast-paced environments Strong interest in performance optimization and continuous improvement Wha

📌 Ai-driven software engineer (Madrid)
🏢 IONOS Group
📍 Madrid