BESS Technical Specialist

Role

Reporting to the Technical Director, the Battery Technical Specialist will be part of a team responsible for evaluating, selecting and implementing Battery Energy Storage Systems (BESS) into grid‑scale energy storage projects across Europe.

Senior to Principal level, subject to experience.

Our client are a renewable infrastructure investor focused on developing and managing clean energy and energy storage assets, with ambitions to support decarbonisation through a diversified portfolio of energy‑transition investments.

• Market intelligence and supplier evaluation of BESS suppliers
• Sizing and selection of BESS – technical definition / sizing
• Compliance with market requirements
• Understanding of policy, standards and grid code requirements as they relate to BESS
• Capacity maintenance optimisation
• Augmentation strategies
• Tendering for Battery Energy Storage suppliers
• Drafting and managing tenders for BESS projects
• Drafting and negotiation of technical specifications for BESS contracts, including specification, document requirements, performance warranties and associated testing
• Specifying and witnessing Factory Acceptance and Site Acceptance testing for BESS
• Evaluation of tender returns and managing internal review processes
• Automation, through AI or other methods, of the BESS evaluation and selection process
• Support the handover of the project to the project delivery team and provide high level technical support during project delivery
• Evaluation of BESS performance in operation and delivery and feeding performance back into BESS supplier evaluation
• Design Development of future projects
• Support the Technical Director in developing designs and specifications and evaluating contractors for future battery and hydrogen‑ready gas peaking plants

• Ability to combine commercial and technical knowledge to see the overall project picture
• Electrical engineering

• Strong written and verbal communication skills
• Flexibility and adaptability
• Fast learner

• Experience in techno‑economic supplier evaluation
• Experience in working with Chinese suppliers preferable
• Experience in selection or delivery of BESS projects or equivalent

Mint Selection is committed to inclusive hiring and equal opportunities. We welcome applications from all backgrounds and are focused on building diverse teams that reflect the global energy transition.