Energy Storage System (ESS) engineer - UK

Sungrow - EMEA; Milton Keynes; On-site; GBP 40,000 - 60,000; Full time

Job summary

A renewable energy company in Milton Keynes is seeking an Energy Storage System (ESS) engineer specializing in battery energy storage systems. The role involves managing technical designs and supporting energy storage projects as well as interfacing across engineering disciplines. Ideal candidates will hold a degree in engineering, have experience with BESS technology, and possess strong technical advisory skills.

Benefits

KPI-based bonuses

International team collaboration

Training visits to R&D centers

Qualifications

• Developed and delivered international solar PV or hybrid projects.
• In-depth knowledge and field expertise in BESS technologies.
• Proven experience in technical review and communication with clients.

Responsibilities

• Manage high-quality technical advisory work for pre-sales activities.
• Interface between engineering disciplines.
• Prepare and manage specifications and tendering for battery storage systems.

Skills

Experience with BESS technology

English proficiency (C1 or higher)

Technical advisory experience

Education

Bachelor’s degree in Engineering (preferably electrical)

Job description

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Energy Storage System (ESS) engineer - UK, Milton Keynes

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Client:

Sungrow - EMEA

Location:

Milton Keynes, United Kingdom

Job Category:

Other

EU work permit required:

Yes

Job Reference:

b82e5dfea85d

Job Views:

8

Posted:

12.08.2025

Expiry Date:

26.09.2025

Job Description:

Your mission

This is a first-class opportunity to join Sungrow Power EMEA as a principal engineer, specialising in Battery Energy Storage System to join our ESS technical team based in the United Kingdom. As a principal engineer, you will focus on technical design and ESS customized solution proposals to support the delivery of energy storage projects, primarily battery energy storage systems (BESS). You will take a leading role in supporting Sungrow's ESS European market development and also support solar PV, wind, and other renewable energy projects for the group.

Your responsibilities will include:

• Managing and performing high-quality technical advisory work for pre-sales activities
• Project management and interfacing between engineering disciplines (ESS electrical, mechanical, civil, control schemes)
• Providing technical input from initial assessment through to technical and economic feasibility, including integration with other electrical or generating plants
• Reviewing project conceptual and detailed designs, suggesting technical and design improvements
• Preparing and managing specifications, tendering, negotiation, and selection of battery storage systems
• Conducting due diligence on ESS projects and supporting customers and lenders through the financial close process, including technical liaison with legal and financial advisors
• Knowledge of renewable generation utility network connection quality studies and PCS dynamic performance approval processes is advantageous
• Establishing ESS technical specifications according to European regulations and international standards (IEC/IEEE)

Your profile

Ideal candidates will have:

• Bachelor’s degree in Engineering or equivalent (preferably electrical)
• Experience with BESS technology, ideally with UK and European projects
• In-depth knowledge and field expertise in BESS technologies, including emerging technologies and international markets
• Technical advisory experience for investors and project developers, including BESS plant design support
• Experience in developing and delivering international solar PV or hybrid projects
• Proven experience in technical review and communication with clients and project parties (utilities, EPC, etc.)
• English proficiency at C1 level or higher; additional languages are a plus

Why us?

Despite recent challenges like Covid-19, we believe the decade ahead is focused on energy. Sungrow leads in this discourse, with the strongest R&D in PV inverters and being the world’s largest inverter manufacturer. Join us to grow your career in this exciting field, with opportunities for advancement, KPI-based bonuses, international team collaboration, and training including visits to R&D centers in Germany and China.

About us

We are a green tech company driven by young, innovative minds, committed to our mission of Clean Power for All. With over 650 GW of clean power installed worldwide, we are making significant progress. Founded in 1997, Sungrow specializes in solar inverters, energy storage systems, floating PV solutions, EV charging, and renewable hydrogen production. Join us to be part of the future of renewable energy!