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 improvem

📌 AI-Driven Software Engineer (Madrid)
🏢 IONOS Group
📍 Madrid