O&M Manager

Job Title: Manager - Operations & Maintenance (O&M)

About the Role

We are seeking an experienced and strategically minded BESS Maintenance Manager to lead and develop the O&M function within our fast-growing Operations and Maintenance department. Reporting to the O&M Director, you will be responsible for overseeing all maintenance activities delivered by our field engineering teams across a growing portfolio of Battery Energy Storage System (BESS) projects in the UK. This is a critical leadership role that combines operational excellence, team management, and strategic development to ensure our assets perform at their maximum potential.

You will ensure that our engineering teams deliver fully in line with contractual arrangements, working collaboratively with clients and their representatives to build trusted, long-term partnerships. The role will work extensively with other stakeholders within the BESS team, including MEP, Development, and Construction, to ensure that any factors impacting the effective operation of our BESS assets are understood and proactively managed. Regular site visits will be required.

Strategic Leadership & Asset Management

• Develop and continuously improve the O&M function to fulfil our asset management objectives as our portfolio of BESS assets grows, ensuring effective and efficient delivery of all works.
• Take ownership of operational and technical escalations, ensuring they are managed in line with regulatory, contractual, and commercial obligations.
• Compile and submit monthly availability reports, analysing performance data to identify areas for improvement and further optimisation of system efficiency.
• Lead troubleshooting efforts for complex operational issues, working collaboratively with the O&M service team and technical partners to identify root causes and implement lasting solutions.
• Provide strategic input to the in-house system engineering group on product development and project work, translating field insights into tangible product improvements.

Operational Excellence & Maintenance Delivery

• Maintain Envision Energy Storage Systems to the highest standards by overseeing all planned preventative maintenance (PPM) checks, annual capacity tests, and reactive works.
• Ensure all O&M activities are delivered safely, efficiently, and in full compliance with contractual requirements and industry best practices.
• Assist with phone support and remote diagnostics to customers, providing technical guidance and ensuring prompt resolution of issues.
• Support the project team with start-up and commissioning services at customer locations (SAT), ensuring seamless handover to operations.
• Provide suggestions based on field engineers' experiences to continuously improve products, procedures, and maintenance strategies.

Health, Safety & Compliance

• Champion and enforce a culture of HSE excellence across both your own team and the wider company, ensuring all activities are conducted in a safe manner.
• Ensure full compliance with RAMS, SHEQ, CDM regulations, and all applicable health & safety legislation.
• Lead by example in promoting safety, wellbeing, and environmental responsibility across all site activities.
• Manage, supervise, and plan the workload of multiple O&M field engineers across various sites, ensuring optimal resource allocation and productivity.
• Mentor and develop team members, imparting knowledge and sharing experience to build technical capability and career progression within the team.
• Foster a collaborative, high-performance culture that promotes service excellence and continuous improvement.

Stakeholder & Client Management

• Build and maintain strong relationships with BESS clients and external parties across sites, ensuring customers are delighted and future growth opportunities are maximised.
• Interface effectively with a wide range of stakeholders, including senior management, contractors, and regulatory bodies.
• Prepare and present reports to the senior management team, communicating performance insights and recommending strategic actions.
• Perform any other duties as required to support the growth and success of the O&M department.

What We're Looking For

• 8+ years of experience in asset management, operations leadership, or maintenance management roles within energy networks, renewables, utilities, oil & gas, or similar industrial sectors.
• Degree educated in engineering or related field (or equivalent experience in utilities, oil & gas, water, or power generation)
• H&S knowledge and extensive experience within electrical installation projects (RAMS/SHEQ/CDM)
• H&S qualif