Battery Application Engineer

Primary Responsibilities

• Develop working knowledge of AC and DC LINKs -- including product architecture, key performance parameters, electrical systems, mechanical/structural characteristics and BMS behavior -- and serve as the US team's go-to resource for product technical questions.
• In addition, become a subject matter expert in one of the following areas: (a) battery cells (b) DC/AC electrical systems (c) mechanical/structural/civil engineering (d) SW/controls.
• Since the AC LINK provides AC power, the person hired will need to understand how the AC LINK satisfies grid code requirements (e.g. LVRT, Frequency response), performs Grid Following/Grid Forming functions, enables Blackstart, etc.
• Serve as the internal technical resource for assigned BESS product lines -- answering inquiries, supporting proposals, and clarifying product specifications for internal Sales Engineering, Project Engineering, and System Engineering teams.
• Build and maintain standardized product documentation: Technical Datasheets, System Architecture Overviews, Interface Definitions, Compliance Summaries, and Q&A packages.
• Track LGES HQ product updates and new product introductions; assess US market relevance and communicate changes internally.
• Support pre-award and post-award activities: proposal reviews, technical clarifications, design deviation tracking, and customer technical queries.
• Contribute to team knowledge base with lessons learned, templates, and case studies.
• Capture new product requirements based on customer/market information and interactions with internal partners (e.g. Sales Engineering, Project Engineering, and System Engineering teams).
• Work with product teams in HQ and in the US to ensure products are designed to meet these requirements.

Knowledge, Skills and Abilities Required

• 5+ years of experience in battery energy storage, power electronics, inverter/PCS system, mechanical/structural engineering for large-scale equipment, or a closely related field.
• Technical depth in at least one of the following areas: (a) battery cells (b) DC/AC electrical systems (c) mechanical/structural/civil engineering; experience in mechanical, structural, or civil engineering aspects of large-scale battery installations (container design, mounting, thermal/HVAC, seismic, civil foundation) is highly valued and considered a strong differentiator.
• (d) SW/controls with an emphasis on grid code requirements (e.g. LVRT, Frequency response), Grid Following/Grid Forming functions/Blackstart, etc.
• Ability to read and interpret technical documents including engineering drawings, single-line diagrams, and product specifications.
• Strong written and verbal communication skills in English; Korean proficiency is a plus.
• Proficiency in Microsoft Office; SharPoint experience is a plus.
• Experience in utility-scale or C&I energy storage projects preferred.
• Experience working across engineering, sales, and project management teams preferred.