Job Description:Position SummaryWe are seeking a highly motivated and hands-on Senior Manufacturing Engineer to support the industrialization, production ramp, and continuous improvement of Power Electronics. This role will focus on Inverters, Transformers and Switchgears and the complete system assembly and test process, including material flow, factory layout, production controls, and manufacturing scalability. The Manufacturing Engineer will lead efforts to transition products from NPI (New Product Introduction) into stable mass production while optimizing safety, quality, and throughput.This position serves as the primary manufacturing engineering interface between internal engineering teams and contract manufacturers, ensuring production processes meet company requirements for safety, quality, delivery, scalability, and cost. The Manufacturing Engineer will focus heavily on process development, factory readiness, material flow, manufacturing controls, supplier capability, production capacity, and continuous improvement within CM facilities.Key ResponsibilitiesContract Manufacturer and Supplier SupportServe as the primary manufacturing engineering contact for CM and Supplier partners supporting production.Drive manufacturing readiness and operational execution at CM sites for:Power Electronics assembly and testingSubassembly production and Main Power Electronics assemblyFinal system integration and testEnsure CM manufacturing processes meet company standards for:SafetyQualityThroughputTraceabilityProcess repeatabilityConduct regular on-site support, production reviews, process audits,



DFMEA reviews and manufacturing assessments at supplier facilities.Cost Reduction and Manufacturing Efficiency Drive manufacturing cost reduction initiatives across subassembly, main assembly, and test operations.Identify opportunities to reduce:Labor contentManufacturing cycle timeMaterial handling wasteRework and scrapFloor space utilizationTooling and fixture costsImprove manufacturing efficiency through line balancing, process optimization, and workflow improvements.Partner with Design Engineering and Supply Chain on Design for Manufacturability (DFM) and component cost reduction opportunities.Support implementation of Lean Manufacturing principles to eliminate non-value-added activities and improve operational efficiency.Assembly, Test, and Capacity PlanningDevelop and standardize manufacturing and test processes across CM production lines.Support setup and optimization of:Power Electronics test stationsFunctional test systemsFinal system test operationsPerform station-by-station capacity analysis and line balancing to support production targets.Establish manufacturing KPIs and operational controls including:ThroughputCycle timeFirst pass yieldDowntime trackingBottleneck analysisDrive implementation of standardized production controls and reporting across CM partners.QualificationsRequiredBachelor’s degree in Manufacturing, Mechanical, Electrical,



or Industrial Engineering, or related field.Fluency in Spanish and English, both written and spoken, is required.5+ years of manufacturing engineering experience in:Power electronicsIndustrial equipmentRenewable energyHigh‑power electrical systemsAutomotive or related industriesExperience supporting complex electromechanical assembly and test operations.Experience with NPI, production ramp, and manufacturing scale‑up.Knowledge of Lean Manufacturing, PFMEA/DFMEA, control plans, root cause analysis, and process improvement methods.Strong problem‑solving, communication, and organizational skills.PreferredExperience with:Solar Power Electronics manufacturingHigh‑voltage/high‑current productsPower conversion systemsAutomated test systemsHeavy assembly operationsLean or Six Sigma certification preferred.Familiarity with ERP/MES systems and manufacturing data analysis.At Nextpower, we are driving the general energy transition with an integrated clean energy technology platform that combines intelligent structural, electrical, and digital solutions for utility‑scale power plants. Our comprehensive portfolio enables faster project delivery, higher performance, and greater reliability, helping our customers capture the full value of solar power. Our talented worldwide teams are redefining how solar power plants are designed, built, and operated every day with smart technology, data‑driven insights, and advanced automation. Together, we’re building the foundation for the world’s next generation of clean energy infrastructure.We are Nextpower
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📌 Senior Manufacturing Engineer - Power Systems (Madrid)
🏢 Nextpower
📍 Madrid