**Job Summary**Position Summary: The Senior BESS Field Service Technician serves as a frontline technical expert supporting utility-scale Battery Energy Storage Systems across Texas and North America. This role is responsible for ensuring safe, reliable operation of customer assets through preventive & corrective maintenance, troubleshooting, emergency response and commissioning activities. The position offers direct exposure to leading-edge energy storage technologies and provides a pathway into field leadership, commissioning and technical specialist roles.**Job Description** **Essential Job Functions:*** Perform preventative and corrective maintenance and troubleshooting of: + Utility-scale lithium-ion energy storage systems + Battery DC Blocks + Battery Management Systems (BMS) + Power Conversion Systems (PCS) + Medium-voltage transformers + EMS & SCADA Systems + Balance of Plant Equipment, including - MV Switchgear, Switches, Circuit Breakers, Reclosers, Protection relays, etc. - undefined - Perform remote monitoring and SCADA-based diagnostics. - Execute switching, LOTO and electrical safety procedures. - Develop service reports, maintenance records and root-cause analyses. - Lead complex field troubleshooting activities and mentor junior technicians. - Support emergency call-out response and rotating on-call coverage. - Keep maintenance logs, visitor logs, and other records associated with the contract scope of work requirements + Interface with Owner/Operator and the Nidec BESS Project Manager and Engineering team when anomalies occur + Initiate the procurement and shipping of crucial repair parts (if required) + Initiate the issuance of Return Materials Authorization (RMA) + Support commissioning, startup, energization and performance testing. + Display professionalism, proactively interface, and effectively communicate with the customer to build and maintain an elevated level of customer satisfaction. + Maintain working knowledge of safety policies and regulations to ensure duties of self and others are performed in a safe manner. + Use Salesforce software to log customer interactions pertaining to Service and RMA cases* **Learning Period** + Formal training at Nidec Conversion, home office and on-site training with a senior FSE when needed.* **Working Conditions** + Position may require up to 80% travel in the field for the purpose of: - Supporting customers in Texas primarily and across North American as needed - Training, on products and systems produced by Nidec Energy Systems & Nidec Conversion, including experiential training on projects and service interventions. + In the case of work at customer sites: - Considerable amount of walking may required. - May requireclimbing of staircases and access ladders, working at heights, in tight spaces, outdoors in hot and cold weather. - May require lifting up to 70 lbs and operating lifting equipment (fork trucks, etc.) - Field work requires wearing and working in appropriate safety gear. - Carry service bag (25-50 lbs.), laptop case/caddy, as well as other trade tools.* **Education/License Requirements:** + Associate degree in Electrical Technology, Electronics, Renewable Energy or related discipline preferred. Military technical training accepted. NFPA 70E required. OSHA-10 required. NETA and NABCEP certifications preferred. + Valid Driver’s License required; Valid U.S. Passport, or passport of employee’s country of origin. + Must be able to pass a federal background check. + Must be able to legally work in the United States without sponsorship.* **Experience Requirements** + Prior experience on Tesla, Fluence, Powin, Wärtsilä, Sungrow, CATL, BYD, Risen/SYL or similar platforms is highly valued. + Minimum 3-5 years of relevant experience in utility-scale BESS, solar, wind, power generation, industrial electrical maintenance, substations, UPS systems or power conversion equipment. Strong understanding of power electronics, AC/DC systems, battery technologies, relay protection and SCADA systems. + Ability to read electrical drawings and use advanced electrical test instruments. + Experience using electronic test equipment such as Data Recorders, DMM’s, Clamp-on ammeters, Megaohmmeters, and Oscilloscopes + Experience in troubleshooting power electronics circuitry desirable + Experience working independently and as part of a team in a safe, reliable manner + Ability to work within strict deadlines. + Ability to use hand and/or power tools. + Ability to read Electrical Drawings/Schematics* **Competencies** + Strong safety mindset + Strong technical skills, in electrical fundamentals and troubleshooting + Goal oriented, self-driver with strong work ethic, quality mindset and attention to detail + Strong customer service and interpersonal skills + Strong verbal and written communications skills + Teamwork and ability to work independently. + Fluency in Spanish preferred but not required Competence in Microsoft Office software programs