Job Description: Roles The Senior System Architect Engineer (Power Quality \& Electrical Digital Twin) is responsible for leading presales activities and providing technical support to the South Korea sales organization, partners, consultants, and customers.
Key Responsibilities Presales Support \& Opportunity Development* Support South Korea sales teams in identifying, qualifying, and developing Power Quality and Electrical Digital Twin (eDT) opportunities. * Provide technical support throughout the sales cycle, from opportunity qualification to project award. * Conduct customer presentations, workshops, demonstrations, and technical discussions. * Work closely with account managers, consultants, EPCs, system integrators, and end users to understand customer requirements and develop suitable solutions. * Supporting tendering / channel partners on engineering solution with cost optimization * Act as a trusted technical advisor to customers, partners, and internal stakeholders.
Solution Design \& Architecture* Develop solution architectures and technical proposals for: + Power Quality Solutions: Active Harmonic Filters (AHF), Static VAR Generators (SVG), Power Factor Correction (PFC), and Dynamic Voltage Restorers (DVR). + Electrical Digital Twin (eDT): ETAP-based offline and real-time digital twin solutions. * Define customer use cases, business value propositions, technical requirements and ensure that the use cases are successfully delivered by execution teams. * Support proof-of-concept activities, solution demonstrations, and technical validation.
Power Quality Solution Expertise Serve as the subject matter expert for:* Power quality assessment, mitigation, and optimization solutions. * AHF, SVG, PFC, and DVR application engineering and sizing. * Load analysis, harmonic studies, reactive power compensation, and power quality improvement initiatives. * Compliance with applicable power quality standards and customer requirements. * Power system troubleshooting, root cause analysis, and remediation recommendations.
Electrical Digital Twin (eDT) Expertise Electrical System Modeling \& iSLD development using ETAP offline and real-time modules Interpret project single-line diagrams, schematics, protective device schedules, cable schedules, load lists, and equipment datasheets to build accurate digital models of the electrical network. * Model electrical systems starting from the utility service, extending through the medium-voltage distribution system, and down to low-voltage AC and DC load buses. * Include all energy sources contributing to a fault, including utility supply, generators, and induction motor contribution over the appropriate fault duration, for both redundant and non-redundant configurations. * Update and maintain the digital model as project information matures across all design and construction phases. Real-time electric digital twin* (Etap)
Perform the following studies to project specifications and applicable codes: Load Flow Analysis - Determine bus loading, voltage drop, and power factor for both redundant and non-redundant scenarios. * Protection \& Coordination Study - Determine overcurrent protective device settings for selective tripping, from utility service down to low-voltage circuits at rack or panel level. * Arc-Flash Hazard Analysis - Calculate arc-flash hazard boundary distances and incident energy at all switchgear, panelboards, and applicable equipment; prepare warning labels. * Cable Ampacity \& Thermal Analysis - Verify that cables in the distribution system operate within thermal and ampacity limits. * Motor Starting Studies - Simulate voltage dip and mechanical dynamics during motor start (DOL, star-delta, soft starter, VFD). * Harmonic Analysis - Screen harmonic distortion against IEEE 519 / IEC 61000-3 limits and support mitigation sizing. * Grounding System Studies - Support IEEE 80 / IEEE 665 grounding grid design for step, touch, and transferred voltage compliance. * Reliability \& Renewable Integration Studies - Support quantification of SAIFI/SAIDI indices and integration of on-site renewables, BESS, and DERs where applicable. * Scenario-based operational studies*
Key responsibilities include:* Drive real-time electrical digital twin (eDT) projects pre-sales support and preparation. * Collect field data during site visits, including equipment nameplates, protection relay settings, and geotechnical soil thermal resistivity (Rho value) for cable studies. * Participate in deployment phase and commissioning support, providing settings and information required to meet the project schedule * Coordinate with Engineer of Record, general contractor, equipment vendors, and commissioning agent for study inputs and validation. * Building, validating, and maintaining electrical network models. * Performing power system simulations and engineering analyses. * Supporting digital twin deployment through model validation and system verification. * Translating engineering results into actionable operational recommendations and business value for customers.
Partner, DEAC \& Services Team Collaboration* Act as the primary technical advisor for EcoXperts, system integrators, consultants, and partners in South Korea. * Collaborate with the Digital Energy Application Center (DEAC) on solution architecture development, engineering studies, demonstrations, and proposal support. * Work closely with the Services Team on project delivery planning, testing, commissioning strategies, and technical risk management. * Support knowledge transfer across sales, presales, DEAC, services, and project execution teams. * Deliver technical training, workshops, and mentoring programs. * Develop application guides, reference architecture, engineering templates, and best practices.
(External) English Qualifications: Qualifications Education:
Bachelor’s degree in electrical engineering, electrical power engineering, or a related engineering discipline from an accredited university.
Working Experience:
At least 10 years of relevant experience in electrical power system analysis, design, or consulting.
Experience preparing or interpreting single-line diagrams (SLDs), schematics, and protective device schedules.
Exposure to at least one commercial power system analysis software platform (e.g., ETAP, SKM PowerTools, EasyPower, DIgSILENT PowerFactory, Siemens PSS SINCAL, NEPLAN, CYME, or equivalent).
Familiarity with critical electrical systems such as data center, building, infrastructure, or industrial plant electrical systems.
Others (e.g. language skills, technical skills):
Professional Skills
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