E&P Senior Site Manager

Octavius Infrastructure, a leader in rail infrastructure services, is seeking a Senior Electrification & Plant Site Manager to join our Southern Renewals Enterprise team. In this pivotal role you will take overall responsibility for the safe, high‑quality and efficient delivery of electrification and plant renewals and enhancements across the Southern region. You will lead, mentor and develop a team of managers, technicians and operatives, ensuring compliance with all safety, quality and environmental standards and acting as a key liaison with internal and external stakeholders to guarantee successful project outcomes.

Responsibilities

• Lead and manage all site activities for electrification and plant projects, ensuring works are delivered safely, profitably and to the highest standards.
• Set the tone for a collaborative, high‑performing culture across your teams and supply chain partners.
• Oversee the planning, coordination and supervision of installation, testing and commissioning of electrification and plant assets.
• Ensure all works are executed in line with design specifications, industry standards and company procedures.
• Drive a right‑first‑time approach and proactively address any issues or non‑conformances.
• Monitor and report on project progress, performance and quality.
• Implement corrective actions as needed and ensure projects are closed out efficiently, with all documentation and asset registers accurately maintained.
• Act as the primary point of contact for clients, suppliers and other stakeholders.
• Foster strong relationships and ensure clear, timely communication throughout the project lifecycle.
• Mentor and develop site managers, engineers and operatives.
• Conduct regular appraisals, identify training needs and promote continuous professional development within your teams.
• Champion a positive safety culture, ensuring all health, safety and environmental requirements are met and exceeded.
• Lead by example and ensure lessons learned are shared and implemented across projects.
• Identify and implement best practices, drive innovation and contribute to the ongoing improvement of project delivery processes.

Benefits

• Competitive rewards package, including a company car scheme, private healthcare, pension, life assurance cover and 25 days annual leave with a day off for your birthday.
• Enhanced paternity and maternity package.
• Opportunities for personal and professional development.

Qualifications

• HNC/HND in Electrical Engineering (or equivalent).
• SMSTS competent and 18th Edition qualified.
• Significant experience in electrification and plant management within the rail industry, ideally with a background in leading multi‑disciplinary teams on major projects.
• In‑depth knowledge of high‑voltage feeders, associated equipment and relevant standards/regulations.
• Demonstrable leadership, communication and stakeholder management skills.
• Strong commercial awareness and contract knowledge (NEC, ICE, etc.).
• Proficiency in Microsoft Office and relevant project management software.
• Full UK driving licence.

Inclusion and Diversity

Inclusion and diversity are important to us, we are an equal opportunities employer and value difference. We want and will continue to build an inclusive environment where our people thrive. We firmly believe constantly striving to build a truly diverse workforce is what makes us a strong business and will enable us to continue to solve important problems and deliver unrivalled value to both our customers and clients. If you need any specialist support throughout your application, we will work with you to support your journey with us.