Grid Engineer – Grid Optimisation (BESS) Sonnedix Madrid, Community of Madrid, Spain Ready to power the future of energy storage? Join us as a Grid Engineer – Grid Optimisation (BESS) and play a key role in shaping how energy storage integrates into power systems across global markets. Based in Madrid, you will identify and optimise grid connection opportunities, lead technical studies, and ensure our BESS projects meet evolving regulatory and operational requirements. Working at the intersection of power systems engineering and the energy transition, you will collaborate closely with TSOs, DSOs, and cross‑functional teams to deliver robust, compliant, and future‑ready grid integration solutions. Ideal for an experienced electrical engineer with strong knowledge of grid codes, power system analysis tools, and BESS technologies. You will engage with international stakeholders, support multiple project phases, and leverage digital and AI tools to enhance technical analysis and decision‑making. If you thrive in a dynamic, innovative, and collaborative environment and are motivated by accelerating the deployment of clean energy technologies, we’d love to hear from you. Desirable skills Expertise in grid connection studies (load flow, short circuit, harmonics, stability). Strong knowledge of TSO/DSO requirements, grid codes, and protection principles. Proficiency with power system analysis tools (e.G., DIgSILENT, PSSE). Ability to communicate complex technical concepts clearly to diverse stakeholders. Analytical capability and digital/AI literacy to improve workflows and insights. Excellent spoken and written English; experience working in international or multi‑jurisdiction environments is an advantage. About Us Sonnedix is an international Renewable Energy Producer (REP) with over a decade of sustainable growth. We develop, build, and operate renewable energy projects for the long‑term, focusing on providing green, affordable electricity and acting as a true social citizen where we operate. Our financial strength and track record allow us to build trusted relationships with customers and partners and play a vital role in the energy revolution. What we offer One company, many careers – opportunities for growth as the company expands. An inclusive, international working culture with a diverse team of friendly professionals from across the world. A commitment to flexibility – hybrid working, generous annual leave allocation with an additional four weeks of discretionary unpaid leave. A family‑first company – generous paid parental leave and support for carers. Ability to 'work from elsewhere' for up to six weeks in a year. Summer working hours. Financial, social, mental & physical wellbeing support. The Sonnedix Academy – training and development opportunities including professional development, management and leadership programs, technical training, essential skills, DEI, mentorship and more. Dedicated learning paths, tools, and resources to help every colleague confidently use AI and digital tools. Fantastic office environments. Social events, team building opportunities and One Team Network groups, employee‑led groups based on shared identities, interests, backgrounds and life experiences. How to Apply We use English as our business language, please submit your CV in English. At Sonnedix, we’re building a future‑ready team with AI literacy, leveraging digital tools to improve efficiency, innovation, and productivity across all roles. If you don’t meet every single requirement, we still encourage you to apply – we value diverse skills, perspectives, and experiences that contribute to a stronger team. Referrals increase your chances of interviewing at Sonnedix by 2x. #J-18808-Ljbffr