Business Development Manager - Energy Storage Systems (ESS)

Delta, founded in 1971, and listed on the Taiwan Stock Exchange, is a global leader in switching power supplies and thermal management products with a thriving portfolio of IoT-based smart energy-saving systems and solutions in the fields of industrial automation, building automation, telecom power, data center infrastructure, EV charging, renewable energy, energy storage and display, to nurture the development of smart manufacturing and sustainable cities. As a world-class corporate citizen guided by its mission statement, “To provide innovative, clean and energy-efficient solutions for a better tomorrow,” Delta leverages its core competence in high-efficiency power electronics and its ESG-embedded business model to address key environmental issues, such as climate change. Delta serves customers through its sales offices, R&D centers and manufacturing facilities spread over close to 200 locations across 5 continents.

Throughout its history, Delta has received various global awards and recognition for its business achievements, innovative technologies and dedication to ESG. Since 2011, Delta has been listed on the Dow Jones Best-in-Class World Index (formerly the DJSI World Index of Dow Jones Sustainability™ Indices) for 14 consecutive years. Delta has also won CDP with double A List for 4 times for its substantial contribution to climate change and water security issues and has been named Supplier Engagement Leader for its continuous development of a sustainable value chain for 7 consecutive years.

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Job Description

We are looking for an experienced and entrepreneurial Business Development Manager to join our Energy Storage team to drive the growth in our battery storage solutions business.

Responsibilities

• Conduct market research and analysis to identify new business opportunities, including emerging markets, customer segments, technology trends, and regulatory developments
• Develop and execute growth strategies aligned with Delta’s strategic priorities, including ecosystem development and long-term market expansion plans.
• Leverage Delta’s strengths, customer requirements, and stakeholder insights to build cross‑functional teams and develop long‑term business initiatives, including emerging business and future opportunities.
• Exploring customer opportunities, proposing ideas and negotiating cooperation models with clients and business partners to create win-win for all parties.
• Identify and develop business opportunities across key segments of Renewable + BESS, EVCS + BESS, C&I, and Utility-scale applications.

Qualifications

• Bachelor’s or Master’s degree in Electrical or Power Engineering or equivalent.
• 3-5+ years of relevant experience in the field of C&I and utility-scale battery storage solutions.
• Technical know-how of renewable energy, PV systems, battery energy storage systems or power conditioning systems.
• Excellent understanding of sales, business development and customer service processes with ability to build and maintain strong customer relationships.
• Strong legal understanding of contracts and excellent negotiation skills.
• Adaptability and proactivity, with a solution‑oriented mindset and the ability to gather, structure, and communicate information effectively.
• Excellent communication skills in English (written & spoken), other European languages are considered a plus.
• Willingness to travel on a regular basis.