Seville
Main Responsibility • Act as technical owner of all BESS equipment analyses during the phases of basic engineering, RFP preparation, supplier evaluation, and contract negotiation., • Take full technical accountability for recommendations provided to management and procurement, ensuring traceability, justification, and alignment with project objectives., • Lead technical and commercial evaluations of OEM (Original Equipment Manufacturer) proposals — including PCS, EMS, BMS, DC Blocks, transformers, and auxiliary systems — ensuring full compliance with Jinko Power standards and project requirements., • Conduct BESS performance analyses, including round-trip efficiency, degradation modelling, DoD and C-rate impact, temperature control, and lifetime estimation under different operational strategies., • Support Procurement in supplier comparison, scoring, and clarifications, providing clear, data-based recommendations on technical and performance trade-offs., • Identify and flag potential technical, operational, or warranty risks in supplier proposals, ensuring mitigation measures are addressed before contract signature., • Participate actively in technical negotiations and contract closure, ensuring that performance guarantees, testing protocols, and interface requirements are clearly defined and traceable., • Maintain and strengthen relationships with OEMs (Huawei, Sungrow, BYD, CATL, EVE, Gotion, etc.), ensuring effective coordination, timely follow-up, and continuous technical communication throughout design, procurement, and construction., • Ensure full awareness and application of international standards and regulations applicable to BESS and PCS equipment (IEC, IEEE, UL, NFPA, EN, etc.), including safety, grid compliance, and control logic requirements., • Evaluate and review system control and communication architectures (BMS, EMS, SCADA, PPC), ensuring functional integration, data exchange integrity, and cybersecurity alignment., • Review and validate engineering documentation (conceptual, basic, and detailed design), ensuring constructability and technical consistency., • Coordinate closely with Construction during execution and commissioning, participating in FATs, SATs, and site tests to verify compliance and system performance., • Prepare technical reports, comparative analyses, risk assessments, and design recommendations for management decision-making. Requirements • Bachelor’s degree in Electrical Engineering, Power Systems, or related field., • 5–8 years of experience in the renewable energy or power sector, with at least 3 years dedicated to BESS engineering, procurement, or construction., • Proven experience in basic engineering, RFP preparation, supplier evaluation, and technical contract negotiations for energy storage projects., • Strong understanding of BESS system architecture, including PCS, EMS, BMS, transformers, and auxiliary systems., • Demonstrated ability to compare and analyze OEM technologies, assess technical advantages, and support commercial discussions., • Proven experience conducting or witnessing factory and site acceptance tests (FAT/SAT), commissioning, or early operational validation of BESS systems., • Strong knowledge of communication and control systems (BMS, EMS, SCADA, PPC) and integration requirements., • Solid understanding of international standards and regulatory frameworks for BESS and PCS (IEC, IEEE, UL, NFPA, EN)., • Excellent coordination and follow-up skills with equipment manufacturers to ensure on-time delivery of technical information and proper interface alignment., • Highly autonomous, proactive, and analytical, with ability to manage complex tasks independently and under pressure., • Excellent written and verbal communication skills in English (Spanish preferred; Polish and Italian are a plus)., • Availability to travel within Europe for supplier meetings, factory testing, and site support. Preferred Profile • Direct experience with standalone BESS projects under construction or commissioning for IPPs or EPCs., • Expertise in BESS performance validation, degradation tracking, and warranty analysis., • Direct coordination experience with major OEMs (Huawei, Sungrow, BYD, CATL, EVE, Gotion)., • Ability to challenge OEMs technically when needed, maintaining a collaborative yet firm communication style to ensure robust design and performance guarantees., • Strong ownership, structured work habits, and ability to communicate effectively across multidisciplinary teams. Professional Skills • Software: AutoCAD, MS Office, QGIS, PVcase (desirable), DIgSILENT, Python, or equivalent analytical tools., • Soft skills: Ownership, initiative, analytical mindset, teamwork, assertive communication, and technical rigor.
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