Power System Engineer

必須

• Master’s degree in Electrical Engineering, Mechanical Engineering, or a related technical field.
• 5+ years of experience in power system engineering, electrical design, or BESS / renewable energy system development.
• Experience with power system studies, including load flow, voltage drop, short-circuit, or protection coordination analysis.
• Experience using ETAP, DIgSILENT, PVsyst, LTspice, HIL simulation, or similar engineering tools.
• Available to work at our Lab on a daily basis

歓迎

• Experience with BESS, PCS, converters, inverters, battery systems, solar power, wind power, or grid-connected systems.
• Knowledge of high-voltage / low-voltage design, cables, busbars, transformers, switchgear, grounding, and protection devices.
• Experience with BMS / BMU circuits, monitoring functions, protection logic, or board-level electrical design.
• Experience with high-voltage testing, insulation testing, EMC optimization, or safety validation.
• Business-level English communication skills or willingness to work in an English-speaking environment.

求める人物像

• Proactively take on new challenges and approach difficult tasks with a positive mindset
• Excel at coordinating and communicating effectively with both internal and external stakeholders
• Embrace change and adapt flexibly in dynamic, fast-paced environments
• Take initiative to identify and address issues independently
• Possess strong communication skills, both verbal and written
• Demonstrate a willingness to actively learn and grow in unfamiliar areas

使用ツール

Description

• We are looking for a Power System Engineer to work on the electrical design, system integration, and validation of our Battery Energy Storage Systems, known as BESS.
• This role covers power system design, component selection, supplier evaluation, and testing for BESS products, including batteries, PCS / converters, transformers, cables, busbars, switchgear, and monitoring/protection systems.
• The ideal candidate has experience in power system engineering and can work across both system-level electrical design and practical validation in a high-voltage environment.

Job Scope

• Develop electrical concepts, system requirements, and technical specifications for BESS products.
• Create single-line diagrams and perform power system studies such as load flow, voltage drop, short-circuit, and protection coordination analysis.
• Conduct battery sizing, transformer sizing, cable sizing, busbar sizing, and MV switchgear selection.
• Evaluate and integrate key electrical components such as PCS, converters, transformers, switchgear, sensors, and protection devices.
• Support high-voltage testing, electrical validation, troubleshooting, and supplier technical communication.

Internal common IT tools

• Google Workspace （Gmail, G-cal, Gmeet等）
• Slack
• Notion
• SmartHR
• Money Forward
• Bakuraku etc.