BESS Project Engineer

Benefits

• Yearly “work from anywhere” policy
• Sabbatical schemes at any of the company's international offices
• Company pension contribution up to 10%
• Industry leading benefits package

The Company

OXBO are delighted to be continuing their partnership with a leading international, end-to-end, Solar & BESS developer, owner and operator, and energy trader to add an experienced Senior BESS Engineer to their Engineering team in any of their London, or Dublin offices.

As a company, they have a development portfolio that is one of the largest in the UK, and they have a large number of projects moving into construction.

The Role

The successful candidate will play a pivotal role in the technical assessment of designs, leading optimisation efforts, and supporting the expansion their Battery Energy Storage (BESS) portfolio. As a Senior BESS Engineer, you will collaborate closely with Project Engineers and Project Managers during the project delivery phase while providing critical engineering support to the Construction, Pre-Construction, and Development teams.

• Apply electrical and power systems expertise to identify and drive innovative solutions for large-scale utility projects.
• Provide BESS design input for conceptual design studies, feasibility studies, and technical due diligence assessments for co-located and standalone BESS projects.
• Review and evaluate single-line diagrams, communication wiring diagrams, BESS system layouts, and other electrical designs to ensure compliance with standards and project requirements.
• Prepare ERs related to contractor works for BESS projects and ensure their implementation through regular auditing.
• Promote standardised BESS designs to reduce CAPEX and OPEX while establishing sound engineering standards, systems, and procedures for the engineering department.
• Collaborate with vendors, manufacturers, and internal teams to specify BESS equipment and drive technical solutions.
• Prepare and maintain clear documentation, including design specifications, white papers, schematics, diagrams, and reports.
• Evaluate electrical calculations and designs, including battery system layouts, PCS integration, control and protection systems, power system studies, earthing, LV distribution, general service design, and EMS functionality.
• Support the Grid team in reviewing System Operator requirements and addressing utility application standards.
• Coordinate with Owner’s Engineer site engineers to address design-related issues during construction and commissioning.

Requirements

• A Bachelor’s Degree in Engineering or equivalent experience.
• Ideally 5-10 years of relevant experience as an Electrical/Project Engineer, preferably in BESS, renewables, or related fields.
• Proficiency in BESS electrical installations, ampacity calculations, short circuit/load flow studies, protective device coordination, arc flash analysis, grounding per IEEE 80, and other relevant design topics.
• Strong expertise in specifying, evaluating, and procuring BESS equipment as well as major electrical components such as switchgear and transformers.
• Experience in developing electrical construction drawing sets and supporting construction administration tasks (RFIs, Design Change Notices, as-builts).
• Expertise in controls, networking, SCADA systems, and CAD tools.
• Familiarity with renewables, PV systems, EPC project delivery, generation system design, and microgrids.