At John Sisk & Son, we’re more than a construction company, we’re a family-owned business with a global reach, committed to building excellence in every project. We deliver trust, certainty and value to our clients while embracing innovation and shaping the future of construction.

The Administration Manager provides strategic leadership and oversight to the administrative and coordination functions within the Operations team. This role ensures that all administrative activity, reporting, and client‑facing outputs are delivered to a consistently high standard through effective team management, process governance, and performance monitoring.

Working in partnership with the Operations Manager and Co‑ordinators, the Administration Manager plays a key role in client engagement—supporting and attending client meetings, ensuring KPI performance is accurately represented, and guaranteeing that all reporting is prepared, validated, and delivered on time. The role is based in Bristol, St Albans, or Solihull, with regular travel to other offices and client sites.

John Sisk & Son have been building excellence as a family-owned international construction company by offering trust, certainty and value to our clients whilst being at the heart of change.  

Leadership & Team Management

• Provide strategic leadership to the administrative and coordination teams, ensuring high performance, capability development, and consistent delivery standards.
• Line manage Senior Coordinators and Senior Administrators, setting clear expectations, monitoring performance, and driving continuous improvement.
• Ensure resource planning, workload allocation, and absence cover are proactively managed to maintain seamless operational support.
• Champion best practice, process consistency, and compliance across all administrative activities.

Operational Oversight & Governance

• Maintain oversight of all administrative workflows, ensuring accuracy, timeliness, and alignment with operational KPIs.
• Oversee the production, quality assurance, and timely submission of all operational and commercial reports.
• Ensure all PPM/L8, Water Management, GeoPal, and related documentation is processed, uploaded, and governed effectively through the team.
• Monitor the Race Card, weekly planning reports, and client system updates, ensuring the team maintains accurate and compliant data.

Client Engagement & Reporting

• Support the Operations Manager and Co‑ordinators in preparing for client meetings, ensuring all KPI packs, progress reports, and supporting documentation are complete, accurate, and professionally presented.
• Attend client meetings as required, providing administrative insight, clarifying reporting outputs, and ensuring follow‑up actions are captured and delegated appropriately.
• Maintain a high‑level understanding of client requirements, performance expectations, and contractual reporting obligations.

Strategic Support & Continuous Improvement

• Identify opportunities to streamline administrative processes, enhance reporting quality, and improve operational efficiency.
• Lead or support initiatives to strengthen governance, documentation standards, and cross‑team collaboration.
• Provide guidance and direction to the team on complex or escalated administrative issues.
• Ensure the administrative function remains aligned with operational priorities and evolving client needs.

• Strong leadership capability with experience managing high‑performing administrative or operational support teams.
• Excellent written and verbal communication skills, with the ability to present information clearly and confidently to internal and external stakeholders.
• High attention to detail, with the ability to oversee quality rather than perform tasks directly.
• Ability to manage competing priorities, delegate effectively, and maintain oversight of multiple workflows.
• Confident, resilient, and able to challenge constructively when required.
• Strong organisational awareness and the ability to adapt to changing business needs.

• Proficient in MS Office packages.
• Additional training in leadership, reporting, or operational systems may be provided as required.

• Competitive salary
• 26 days annual leave plus additional company days
• Pension and benefits
• Unlimited learning and development opportunities
• Much more

Our People and Recruitment Commitment

At Sisk Group our people are at the heart of our success. We offer the chance to work with purpose, build a career with no limits and be part of a great team.

All vacancies are managed directly by our Internal Recruitment Team. Unsolicited contact or speculative CVs from unapproved agencies will not be accepted and no introductory fees will apply.

We are an equal opportunities employer. We welcome applications from all qualified candidates regardless of gender, race, ethnicity, disability, age, sexual orientation, religion or any other protected characteristic.

Reasonable adjustments are available during the recruitment process

We know the confidence gap and imposter phenomenon can stop talented candidates applying. You do not need to meet every criterion – your skills and potential matter. Don’t hold back we want to hear from you

All recruitment materials comply with legal and regulatory requirements including the EU Pay Transparency Directive and the Equality Acts UK and Ireland