MissionAct 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 systemRequirementsTechnical:- 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 workflowsProfile:- 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 improvementWhat We Offer:- Hybrid work model (in any of our offices in Alcobendas, Valencia, Barcelona, Sevilla, or Logroño)- Flexible compensation package- Discounts on Arsys products- Discounts on technology brands- Challenging technical environment with real high-performance system problems- Access to advanced AI tools with no usage restrictions- Close collaboration with senior profiles and a strong culture of continuous improvement- Personalized training and development plans#J-18808-Ljbffr