Job Summary: We are looking for a Full Stack Developer to develop and maintain key applications in the energy sector, with the opportunity to integrate AI-based solutions. Key Highlights: 1. Stable, high-impact projects in the energy sector 2. Opportunities for learning and professional growth 3. Access to cutting-edge technologies and room to propose improvements Full Stack Software Engineer – Energy Sector At SOLAY INGENIEROS, an energy sector company, we continue evolving our digital platforms to support critical business processes. We seek a Full Stack Developer with experience in enterprise application development and curiosity about emerging technologies, including Artificial Intelligence applied to software development. About the Role You will join a technical team that develops and maintains key applications for the company. You will participate in the full software lifecycle—from design to deployment—with the opportunity to progressively and practically explore and integrate AI-based solutions. Your Responsibilities Development and maintenance of full stack applications for enterprise environments. Design and implementation of scalable backend APIs and services. Development of modern, user-centric web interfaces. Integration with corporate systems, databases, and external services. Participation in technical decision-making and continuous improvement of architecture. Collaboration with business, product, and operations teams. Exploration and gradual incorporation of AI-based solutions (automation, assistants, process enhancement). Requirements Minimum 3–5 years of experience as a full stack developer. Solid knowledge of frontend technologies (React, Angular or similar). Backend experience (Node.js, Python, Java or others). Strong understanding of relational and/or NoSQL databases. Experience working with REST APIs and service-oriented architectures. Knowledge of version control (Git) and collaborative workflows. Professional-level Spanish and technical English. Preferred Qualifications Prior experience in the energy, utilities, or industrial sector. Basic knowledge of or interest in applied Artificial Intelligence. Experience with cloud services (AWS, Azure, GCP). Knowledge of DevOps, CI/CD, or containers. What We Offer Stable, high-impact projects in a strategic sector such as energy. A robust technical environment focused on quality, maintainability, and best practices. Opportunities for learning and professional growth. Access to cutting-edge technologies and room to propose improvements. Hybrid or remote work model with flexible working arrangements. Competitive compensation aligned with your experience. JavaScript, TypeScript, React, REST APIs, Node.js, Python