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Job Summary: We are seeking a Fullstack Developer for a startup in the energy sector, focused on developing and evolving the core technology of a complex SaaS product with significant impact. Key Highlights: 1. Project with real impact on the future of energy 2. Join a company in full international expansion 3. Work with a high-level technical team Fans of computer and electrical engineering — **Welcome to your digital transformation!** We are **Merlin Digital Partner**, a leading IT & digital talent acquisition consultancy with over 10 years of experience. We have scaled major industry references such as **Wallapop, Glovo, Banc Sabadell, or Factorial**, among others. Focused on **humanizing and accelerating recruitment processes**, our goal is to transform companies by bringing in the best talent. We distinguish ourselves by **deeply immersing ourselves in the reality of each of our partners**, understanding their needs — and also their essence. And one of our partners needs help: they need a **Fullstack Developer** within the energy sector. This is a **startup combining technology and energy with a focus on data**. Their open cloud platform **digitizes grid data via AI**, delivering a unified model and ensuring significant **time savings in management.** **What will the challenge involve?** This role focuses on **developing and evolving the core technology of a complex SaaS product with strong impact in the energy sector**, used by large-scale companies. You will join a **small, highly technical team**, where versatility and technical decision-making are key. Your contribution will be essential to stabilize, industrialize, and improve existing functionalities, ensuring quality, scalability, and seamless integration between backend and frontend. Here’s more about your day-to-day responsibilities: * Develop fullstack features using **Python on the backend and JavaScript on the frontend**. * Maintain and evolve Python services using **FastAPI.** * Develop frontend interfaces and features using **Vue.js**. * **Convert prototypes and advanced features into stable production-ready products.** * **Design and implement scalable technical solutions in a cloud environment (Azure).** * Provide technical input at the architecture level and promote best practices. * Collaborate closely with the CTO and Engineering Lead. * Contribute to an environment where engineering excellence, technical judgment, and software quality are top priorities. **To succeed in this role, our partner requires...️** * Degree in **Computer Engineering.** * Solid experience with **Python**. * Real-world frontend experience with **JavaScript**. * Proven fullstack development experience. * Hands-on experience working in **cloud environments (Azure).** * Database knowledge (**PostgreSQL**) * **Strong engineering practices: clean code, testing, and product mindset.** * Ability to work autonomously in small teams. * Strong analytical skills and problem-solving orientation. * Bonus: Knowledge of the energy sector, power grids, or utilities — not mandatory. * Location: **Madrid** **Why consider accepting this challenge?** * **Flexible hours and hybrid model** (2 mornings/week in office — Friday afternoons off). * A project with **real impact** on the future of energy and the digitalization of critical infrastructure. * Opportunity to join a **company in full international expansion**, with growing presence in the **U.S.** * Work alongside a **high-level technical team**, focused on innovation and best practices. * **Professional development opportunity** and growth within a transforming sector. **If you’re a computer engineer passionate about technology and data analysis — we’re waiting for you! And so is the future of electrical engineering** **️**
