Sarit Kaewsangtham
Technical Service Engineer @ Sungrow
About
Renewable energy engineer with 5+ years of experience across solar PV, battery energy storage systems (BESS), and energy project development in Asia and Europe. Holds an MBA in Energy Management from Technische Universität Berlin and a background in electrical engineering. Experienced in field service engineering, utility-scale project development, and international stakeholder coordination across technical and programme environments. Skilled in renewable energy systems integration, data analysis, and cross-functional collaboration in multinational teams. Passionate about energy transition, smart grid development, and sustainable infrastructure solutions that support long-term decarbonization goals.
Thailand
Bangkok
Renewables & Environment
Solar Industry, Field Service Engineering, Renewable Energy Systems, BESS, battery energy storage, Project Management, Python (Programming Language), Management, Strategic Planning and Procurement, Renewable Energy Expertise, Mechanical Engineering, Maintenance Management, English, Customer Service, IT Service Management, Electrical Engineering, Solar Energy, Renewable Energy, Team Leadership, Green Technology
Experience

Technical Service Engineer
Service Operations & Management: Oversee pre-commissioning, commissioning, maintenance, fault diagnosis, and repairs for solar PV and energy storage systems (BESS). Ensure on-site service compliance with local work health and safety regulations. Maintain accurate records of service cases, spare parts inventory, usage, and financial expenses. Plan and coordinate tasks with other divisions to ensure timely job completion. Service Partner & Customer Relations: Manage service partners, including contract negotiations, performance evaluations, and work quality assessments. Lead customer interactions, including long-term partnership discussions, technical consultations, and social engagement activities. Act as a key liaison between management, sales teams, service partners, and customers to support business growth. Service Sales & Business Development: Conduct service sales activities to meet annual targets. Assist in the preparation of service offers, proposals, and contracts.

Working Student
Berlin, Germany
● Developing strategic plans for the procurement of equipment, services, and supplies to achieve to project timelines. ● Maintaining and regularly updating supplier information, including qualifications, delivery times, product ranges, and other pertinent details. ● Compiling budgets, conducting cost analyses, and generating reports.

Project Engineering
Ekarat Engineering Public Company Limited
Bangkok, Bangkok City, Thailand
● Streamlined maintenance operations by implementing a preventive maintenance plan, incorporating technologies such as thermal scanning drones and specialized software, which reduced system downtime cases from over 230 to approximately 180 in the first year. ● Proactively addressed critical system issues, including identifying and resolving inverter malfunctions through thermal scanning, resulting in a 15% increase in revenue from improved energy production. ● Oversaw the performance and maintenance of solar assets, producing detailed energy yield reports and ensuring optimal asset performance through proactive issue resolution. ● Coordinated procurement of services and materials to support timely project delivery and operational efficiency across various solar installations, from household systems to large manufacturing sites. ● Developed annual preventive maintenance schedules, including tasks such as overseeing subcontractors, cleaning solar modules, inspecting electrical and ground systems, and providing comprehensive client reports. ● Conducted efficiency evaluations through cable insulation testing, thermal scanning of physical modules, and IV curve testing to ensure system reliability and performance.

Student
Impact English College Melbourne
Melbourne, Victoria, Australia
General Englist Language Course

Maintenance Engineer
Bangkok, Bangkok City, Thailand
● Machine and production equipment maintenance ● create a machine trouble report and, if necessary, a countermeasure plan, as well as a preventive schedule plan ● predict potential problems and take preventive measures
Sarit Kaewsangtham's Contact Information
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