Senior Site Manager in Slough

We are seeking an experienced Senior Site Manager to join a leading construction business delivering a major residential-led development in East London. Reporting directly to the Project Manager, you will take responsibility for the day-to-day management of site operations, ensuring works are delivered safely, efficiently, and to the highest quality standards.

This is a key leadership role requiring a proactive and decisive individual capable of managing large site teams, coordinating multiple subcontractors, and driving programme performance throughout the project lifecycle.

This is an exciting opportunity to play a pivotal role in the delivery of a significant multi-phase development. The successful candidate will join a well-established project team and contribute to the successful delivery of a large-scale scheme that will have a lasting impact on the local area.

Experience & Qualifications

• Proven experience delivering large-scale residential or mixed-use developments.
• Strong track record of managing sizeable site teams and multiple subcontractor packages simultaneously.
• Experience working on complex construction projects with high workforce levels.
• Proficient in Microsoft Office applications, including Word, Outlook, and Excel.
• Experience using digital construction management platforms.
• Strong commercial awareness and people management skills.
• Ability to make effective staffing and resource decisions to maintain project performance.

Key Skills

• Strong planning and organisational abilities with a focus on short and medium-term programming.
• Excellent leadership and team management skills.
• Ability to coordinate labour, materials, and subcontractors to achieve programme objectives.
• Strong written and verbal communication skills.
• High attention to detail and commitment to quality standards.
• Ability to work effectively under pressure and meet demanding deadlines.
• Experience chairing meetings and producing clear action plans.
• Strong stakeholder management and client-facing communication skills.
• Ability to coordinate effectively with operational, commercial, design, and logistics teams.

Key Responsibilities

• Manage day-to-day site operations and oversee all site-based activities.
• Lead and coordinate subcontractors to ensure programme and quality objectives are achieved.
• Chair regular coordination meetings and monitor progress against agreed actions.
• Review site records and ensure accurate reporting across all workstreams.
• Assist with programme management, look-ahead planning, and resource forecasting.
• Work closely with project teams to identify and resolve operational challenges.
• Coordinate with commercial and design departments to ensure construction activities are fully supported.
• Promote and maintain the highest standards of health, safety, and environmental compliance.
• Monitor quality assurance processes and site inspection regimes.
• Liaise with external stakeholders, consultants, inspectors, and regulatory bodies as required.
• Support site logistics planning and ongoing operational improvements.
• Participate in daily and weekly planning meetings to ensure effective coordination of all trades and activities.
• Contribute to procurement planning, subcontractor management, and package reviews where required.

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.