About Us
Fuse Energy is an energy startup on a mission to make energy abundant and affordable, fast. We combine first-principles thinking with cutting-edge technology to build a radically better energy system.
We’ve raised over $200M from top-tier investors including Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, 20VC, Hummingbird and Collaborative Fund, alongside strategic angels including Nico Rosberg and GPs behind Meta, Revolut, Spotify and Uber.
We’re building a fully integrated energy company: developing our own solar, batteries and other generation projects, building our own hardware, improving and developing grid infrastructure, trading power in real time, using AI across the business, and installing distributed energy in homes. By selling directly to consumers we cut out the middleman, lower costs and pass the savings on to our customers.
The Electrical Engineer owns electrical engineering for Fuse's EPC function in Spain, from design through testing, commissioning and energisation, across our infrastructure projects (Solar PV, BESS, Distribution Network, Wind, Gas-Peaker and Data Centres). You are the technical authority for HV and MV systems and lead the team that designs, builds, tests and energises them. You know how to work with Red Eléctrica (REE) and the distribution companies, so every system we deliver is safe, compliant and accepted by the grid operator.
Responsibilities we will trust you withElectrical Leadership, Design to EnergisationLead all electrical engineering for the EPC function, from early design through construction, commissioning and energisationAct as the HV/MV subject matter expert across all projects, covering substations, grid connections, transformers, switchgear,



protection systems and cable networksSet electrical design standards and make sure they are applied consistently across the portfolioReview and approve electrical designs from internal engineers, design partners and consultantsChallenge designs to drive safe, compliant and cost-effective solutionsGrid Access, Connection and ComplianceLead technical review of access and connection permits, connection conditions and compliance requirementsEnsure adherence to the Reglamento de Alta Tensión (RD 337/2014 and ITCs), REBT where applicable, REE operating procedures, distributor technical standards and the technical connection requirements for generation and storageManage inspections, OCA verifications and administrative sign-offs, and close out findingsOversee the technical records and documentation required for authorisation, commissioning and handover of connection assetsAct as the technical interface with REE, distribution companies and third‑party developers sharing connection infrastructureGrid Studies and Technical StandardsOversee and validate grid studies: short‑circuit levels, load flow, protection coordination, harmonics and power qualityOwn the technical compliance case for BESS and generation, including voltage and frequency response, reactive power capability and grid code testingReview and challenge protection, control and SCADA architecture across sitesConstruction, Testing and CommissioningLead HV and MV installation oversight, testing,



commissioning and energisation (puesta en tensión)Witness and sign off key testing: substations, protection systems and grid connection worksLead energisation planning and executionTroubleshoot electrical issues during construction and early operationEnsure as-built systems comply with approved designs and grid requirementsDelivery and StakeholdersRespond to RFIs, TQs and design clarifications, and align design, procurement and constructionSupport handover to Asset ManagementSupport technical due diligence and lender technical advisor requirementsWork closely with Development, Construction and Asset Management teamsAct as escalation point for complex electrical technical issuesRequirements5 to 10+ years in HV/MV electrical engineering within power, utilities, distribution or renewable energyHands‑on BESS experience (design, grid compliance, commissioning or energisation)Deep experience of grid connection in Spain: substations, protection systems, cable networks and working with REE and distribution companiesStrong knowledge of Spanish grid access and connection processes and technical requirements for generation and storageExperience reviewing grid studies (load flow, short circuit, protection coordination, power quality)Hands‑on HV commissioning, testing and energisation experienceExperience leading and developing engineers and commissioning teamsAbility to challenge EPC and consultant designs with evidenceStrong command of Spanish electrical safety regulations and compliance frameworksEngineering degree (Ingeniero Industrial or Ingeniero Técnico Industrial) with professional registration (colegiación) and authority to sign projectsFluent Spanish and professional EnglishBenefitsCompetitive salary and eligibility for equityBiannual bonus schemeFully expensed tech

📌 Electrical Engineer Spain (Barcelona)
🏢 Fuse Energy
📍 Barcelona