# Project Engineer - BESS (all genders) > Q ENERGY · Madrid, Spain (Hybrid) · Full-time · Posted 2026-08-25 **Workplace:** hybrid **Department:** Project Engineering ESS ## Description At **Q ENERGY**, our goal is to create a sustainable world with green energy. Our core values - responsible, partners, inclusive, and changemaker - are the foundation for all our actions. As Europe's leading holistic provider of green energy solutions, we are the trusted partner for the entire spectrum of renewable energy. Our goal is to reshape the world with solar PV, wind and hybrid power plants, innovative storage solutions, and visionary green hydrogen projects.   As a **Project Engineer** in our Iberian team, you will lead end-to-end technical engineering for utility BESS projects in both Spain and Portugal by delivering bankable, safe, and grid-compliant energy storage assets that drive global decarbonization. **Join us on this exciting journey to make a lasting difference to our planet.**   **Please apply with your English CV!** **Your responsibilities** - **End-to-end project design:** Manage projects from conceptual and detailed system design through permitting, site visits, construction support, and compliance with customer and regulatory requirements. - **Engineering & project planning:** Develop energy production models, schedules, cost estimates, budgets, bills of materials, scopes of work, standards, and supplier quotes. - **Technical documentation & system design:** Create and maintain SLDs, physical layouts, electrical schematics, specifications, and other engineering documentation, while coordinating internal and external designers. - **BESS safety & grid integration:** Ensure compliance with **NFPA 855, UL 9540, UL 9540A**, and local fire requirements; develop solar/BESS interconnection requirements and EMS/BMS/SCADA communication protocols such as DNP3 and Modbus. - **Battery performance & technology strategy:** Analyze battery degradation and SoH, develop capacity augmentation strategies, and stay informed on BESS technologies, costs, suppliers, applications, and market trends. - **Construction, testing & commissioning:** Support construction management and supervise project execution, including FAT, SAT, capacity testing, commissioning, quality assurance, and schedule adherence. - **Cross-functional & stakeholder leadership:** Coordinate engineering consultants and specialized contractors, support customers and business development, evaluate vendor proposals, collaborate on procurement/project controls, and develop O&M guidelines and continuous improvement initiatives. ## Requirements - Bachelor's degree in Electrical Engineering or a related engineering field - Minimum 3 years of professional experience in utility-scale BESS industry (stand-alone and hybridizations) and technologies (Batteries, PCS, EMS, SCADA, BMS) - Experience participating in different phases of the BESS project lifecycle: development, engineering, construction, commissioning, and operation - Experience managing production/sensitivity analysis of models and BESS engineering (drawings, calculations, technical specifications, etc) - Strong project coordination and documentation skills - Good understanding of MV/HV grid connection and European grid requirements - Experience working with EPC contractors, supplies, consultants and lenders - Experience AutoCAD and Microsoft Office Suite, Homer Pro or PLEXOS is a plus - Professional fluency in Spanish and English both verbal and written ## Benefits - **Our workplace:** In Madrid Our office is in Torre Europe near Santiago Bernabeu Station, which you can easily reach by metro line 10. In Seville, we provide a welcoming office space for you to utilize. - **IT Equipment:** We’ll set you up with a laptop, monitor, headphones, and, if needed, a company phone.   - **Work-Life Balance:** We value your personal time. Enjoy the flexibility to choose your work hours, so you can prioritize what matters most—whether it’s attending a workout class, handling personal matters, or starting your weekend a little earlier. You’re in control. - **Mobile Working:** At Q ENERGY we offer a hybrid work model: three days in the office and two days of mobile working. This setup supports in-person teamwork while also allowing for more flexibility and reduced commuting. - **Generous Vacation Policy:** Enjoy a well-deserved break and take 30 working days a year to relax, recharge, and explore! - **Health Insurance:** Enjoy free health insurance as part of our collective plan. Want to include your family? No problem - you can add them to the policy at an affordable rate. We've got you covered! - **Corporate Discounts:** Get access to exclusive offers and discounts for various brands through our Corporate Benefits program. - **Additional benefits:**  Enjoy our flexible remuneration program, helping you save up to 30% of your annual salary on essentials like lunch, childcare, and transportation. - **Onboarding:** We provide a detailed onboarding process to ensure you have a smooth and successful start with us, helping you feel supported and prepared from day one. - **Mutual support:**  You’ll thrive in a supportive environment where open communication, teamwork, and knowledge sharing are highly valued. We’re committed to your growth, encouraging your professional and personal development through ongoing support and guidance. **We live diversity on a daily basis.** Q ENERGY is an internationally operating company - at our company, people from many nations, cultures, and locations work together in partnership and exchange their experiences and values with each other in an open and collegial manner. Would you like to become part of Q ENERGY? Then apply by clicking on the application button! ## Apply [Apply at Q ENERGY](https://apply.workable.com/q-energy/j/9863D0F4D8/apply) --- Powered by [Workable](https://www.workable.com)