Validation Engineer – SST Solutions

Who We Are:Delta, founded in 1971, is a global leader in switching power supplies and thermal management products with a thriving portfolio of smart energy-saving systems and solutions in the fields of industrial automation, building automation, telecom power, data center infrastructure, EV charging, renewable energy, energy storage and display, to nurture the development of smart manufacturing and sustainable cities. As a world-class corporate citizen guided by its mission statement, “To provide innovative, clean and energy-efficient solutions for a better tomorrow,” Delta leverages its core competence in high-efficiency power electronics and its ESG-embedded business model to address key environmental issues, such as climate change. Delta serves customers through its sales offices, R&D centers and manufacturing facilities spread over close to 200 locations across five continents. Delta has 158 sales offices, 72 R&D centers and 48 manufacturing facilities worldwide.Throughout its history, Delta has received various global awards and recognition for its business achievements, innovative technologies, and dedication to ESG. Since 2011, Delta has been listed on the DJSI World Index of Dow Jones Sustainability™ Indices for 11 consecutive years. In 2021, Delta was also recognized by CDP with leadership level ratings for its substantial contribution to climate change and water security issues and named Supplier Engagement Leader for its continuous development of a sustainable value chain.About the role:We are building the next generation of solid‑state, grid‑interactive power blocks that enable high‑density, flexible power delivery for datacenters, renewable energy systems, and advanced microgrids The Validation Engineer is responsible for planning, executing, and owning system‑level validation activities for Solid‑State Transformer (SST) and microgrid solutions. This role ensures that products meet functional, performance, reliability, and grid‑interaction requirements across simulation, HIL, laboratory, and early field environments.The Validation Engineer acts as the bridge between design intent and real‑world behavior, working closely with simulation, HIL, controls, hardware, application, and standards teams to verify that system requirements are correctly implemented and robust under normal, abnormal, and fault conditions.Key responsibilities:System‑Level Validation PlanningDevelop validation plans and strategies for SST and microgrid products across development stages.Translate system, functional, and grid‑interaction requirements into clear validation test cases and acceptance criteria.Define validation coverage across: Grid‑connected operationIslanded microgrid operationMode transitions and recoveryAbnormal and fault conditionsTest Execution Across EnvironmentsExecute and coordinate validation activities across multiple platforms, including: Offline simulation (with simulation engineers)HIL / RTDS‑based testingLaboratory and hardware‑based testingEnsure consistency and traceability of validation results across simulation, HIL, and hardware.Functional & Performance ValidationValidate system behavior related to: Voltage, current, and power regulationDynamic response and transient performanceLoad changes and operating envelope limitsVerify system behavior against defined requirements and operating scenarios.Fault, Protection & Abnormal Condition ValidationSupport validation of: Fault detection and protective actionsSystem response under grid disturbancesRecovery and reconnection behaviorWork with HIL and protection teams to validate: Fault handling logicTiming, sequencing, and coordination of protective actionsEnsure system behavior is predictable and safe under faulted and stressed conditions.Standards & Requirement Compliance SupportSupport validation activities aligned with US interconnection and grid expectations, including: IEEE 1547 / 1547.1 (as applicable)Utility interconnection and operational requirementsProvide validation evidence to support: Certification readinessUtility technical reviewsCustomer acceptanceIssue Tracking & Cross‑Functional CollaborationIdentify, document, and track validation issues and anomalies.Work closely with: Controls and firmware engineers to diagnose behaviorSimulation and HIL engineers to reproduce issuesHardware teams to correlate lab and system‑level resultsSupport root‑cause analysis and verification of corrective actions.Documentation & ReportingMaintain clear and structured validation documentation, including: Validation plans and test proceduresTest results and reportsRequirement‑to‑test traceabilityCommunicate validation status, risks, and findings to technical stakeholders.Minimum Qualifications:Bachelor’s degree in Electrical Engineering, Power Systems, Power Electronics, or related field. 3+ years of experience in system validation, verification, or test engineering for power or energy systems. Strong understanding of: Power electronics and inverter‑based systemsGrid‑connected and islanded operationPower system dynamics and transient behaviorExperience working with simulation, HIL, or laboratory validation environments. Ability to translate high‑level requirements into executable validation activities.Preferred Qualifications:Master’s degree in Electrical Engineering or related discipline. Experience validating: SSTs, MV/LV converters, or advanced power conversion systemsMicrogrids or distribution‑level power systemsFamiliarity with: HIL platforms (e.g., RTDS)MATLAB/Simulink or EMT‑based simulation toolsProtection concepts and fault response of inverter‑based systemsExperience supporting: Utility‑facing validation or pilot deploymentsCertification or interconnection readiness activitiesStrong analytical and root‑cause problem‑solving experience.Benefit at Delta Electronics Americas: Life at Delta