Senior Battery Storage Engineer

RWE AG; Swindon; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading renewable energy firm in Swindon is looking for a Senior Battery Storage Engineer. In this role, you will design energy storage systems, mentor junior engineers, and work with an international team to improve RWE's energy storage solutions. Applicants should have at least 6 years of experience in energy storage technology and a relevant engineering degree. This is a full-time, permanent position.

Qualifications

• 6+ years of experience with energy storage technology and Li-Ion batteries.
• Strong knowledge of energy storage projects and industry trends.
• Experience with planning and technical drawings at project level.

Responsibilities

• Develop reliable and cost-effective BESS designs.
• Establish and maintain engineering design criteria for projects.
• Mentor and develop junior engineers and interns.

Skills

Interpersonal skills

Energy storage technology

Systems engineering

Technical acumen

BESS sizing software

Education

Bachelor, Master or Diploma in Electrical, Renewables or Industrial engineering

Tools

AutoCAD

Simulation software (PSCAD, PowerFactory)

Job description

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Senior Battery Storage Engineer, Swindon

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Client:

RWE AG

Location:

Swindon, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

4b02244de2c5

Job Views:

4

Posted:

01.08.2025

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Job Description:

RWE Renewables UK Management Ltd.
To start as soon as possible, full time, permanent

The role

As Senior Battery Storage Engineer you will be responsible to work closely with RWE Renewables development teams European wide to conceive and design energy storage system to support RWE ambitions. You will be working very closely with a talented international team of developers, commercial analysts, energy storage modelers and engineering teams to develop standalone and hybrid solutions. You will report to the Teamlead Battery Energy Storage System and help represent RWE Renewables in front of external stakeholders (suppliers, customers, TSO/DSO, and regulatory bodies).

Responsibilities

• Develop reliable and cost-effective customer focused BESS designs in support of RWE energy storage development teams
• Submit and lead creative ideas to improve RWE Renewables value proposition in energy storage
• Establish and maintain the engineering design criteria, applicable standards and specifications for BESS projects.
• Responsible for the development, review and technical oversight of all engineering and design of energy storage projects.
• Review/approve the work of consultants used on BESS projects to ensure consistent, cost effective designs and timely delivery.
• Support procurement of BESS equipment by maintaining continuous interface with Vendor’s technical personnel and performing technical bid evaluation to ensure compliance to specifications.
• Support Development and Construction to assure timely and cost-effective resolution to regulatory, permitting and technical issues associated with the execution and delivery of BESS projects.
• Support Commissioning and Quality during the construction phase
• Support system studies of BESS during design and planning and ensure its proper execution during delivery.
• Mentor and develop junior engineers, interns and working students

Requirements

• Excellent interpersonal skills, energetic and a self-starter with 6+ years of experience with energy storage technology, Li-Ion batteries, systems engineering and integration
• Bachelor, Master or Diploma in Electrical, Renewables or Industrial engineering
• Experience in Renewables, Battery storage, EPC and hybrid system (solar/wind plus storage)
• Experience and knowledge with planning and technical drawings done by AutoCAD on project level
• Strong knowledge of energy storage projects and industry trends with primary focus on batteries, storage and related solutions.
• Beneficial to have experience with simulation software for grid studies like PSCAD or PowerFactory
• Strong technical acumen with the ability to engage effectively with technical and non-technical stakeholders, both internal and external.
• Deep passion for decarbonization of the global electricity grid
• The following is a big plus but not a requirement:
• Experience with battery performance modelling & applications and working (and/or developing) with BESS sizing software is a plus.
• Experience on BOP/BOS level (Cable calculation, Civils) incl. MV-Substation Engineering or even up to HV-Substation Engineering

Apply with just a few clicks: ad code 90400, application period: 08/08/2025.
Any questions? Contact HR: Lee Harbin lee.harbin@