Job Description:

We are partnering with a leading construction contractor to recruit an experienced Senior Health, Safety & Environmental Advisor for a major data centre development in London.

This is a site-based position offering the opportunity to work on a technically complex project, supporting operational teams to deliver exceptional health, safety and environmental standards throughout the construction lifecycle.

• Provide expert HSE guidance to project leadership and site teams throughout all phases of construction.
• Monitor compliance with UK health and safety legislation, client requirements and internal management systems.
• Carry out regular site inspections, audits and behavioural safety observations, ensuring any findings are addressed promptly.
• Lead investigations into incidents and near misses, identifying root causes and driving preventative actions.
• Support the development and review of construction phase documentation, risk assessments and safe systems of work.
• Deliver toolbox talks, safety briefings and coaching sessions to employees and subcontractors.
• Promote a positive safety culture through visible leadership and proactive engagement with the workforce.
• Build strong relationships with subcontractors, ensuring consistent HSE performance across all work packages.
• Produce accurate reports, KPI data and project updates for senior management and client teams.
• Assist with audits, compliance reviews and continuous improvement initiatives across the project.

• Qualification in Occupational Health & Safety, Environmental Management or a related discipline.
• NEBOSH Diploma or equivalent qualification preferred.
• Previous experience in a senior HSE position on large-scale construction or infrastructure projects.
• Data centre, mission-critical, commercial or industrial project experience would be advantageous.
• Strong understanding of UK health and safety legislation, including CDM Regulations.
• Confident communicator with the ability to influence people at all levels of a project.
• Experience working alongside principal contractors, subcontractors and client representatives.
• Well organised, self-motivated and capable of managing competing priorities in a fast-paced environment.
• Full UK driving licence is desirable.

This is an excellent opportunity to join a high-profile project with a respected contractor delivering one of London's major data centre developments, offering long-term career prospects and the chance to contribute to a world-class safety culture.

O’Neill and Brennan values diversity and promotes equality, All individuals will be treated in a fair and equal manner and in accordance with the law regardless of gender, marital status, race, religion, colour, age, disability or sexual orientation