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Executive Assistant
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Executive Assistant to the CEO
Location: Theale, Reading (Hybrid)
Company: Cornerstone
Salary: Competitive + Benefits
Be the Trusted Partner Behind One of the UK's Leading Digital Infrastructure Businesses
At Cornerstone, we're on a mission to become the UK's #1 digital infrastructure provider by 2030. Managing more than 16,000 sites across the UK, we enable mobile connectivity for millions of people every day. Our purpose is simple: "Your connected world is always within reach."
We're now looking for an exceptional Executive Assistant to become a trusted partner to our CEO and Executive Leadership Team.
This is far more than a traditional EA role. You'll be a key enabler of business success, acting at the heart of the organisation to ensure senior leaders are focused on the right priorities, operating effectively, and supported to deliver strategic objectives.
If you're a highly organised, proactive and confident professional who thrives in a fast-paced executive environment, we'd love to hear from you.
The Opportunity
As Executive Assistant, you'll provide high-level support to the CEO and senior leaders, managing complex priorities, coordinating executive activities and ensuring the smooth operation of leadership and governance processes.
You'll work closely with stakeholders across the business and externally, handling sensitive information with discretion while helping to drive efficiency, organisation and follow-through on key initiatives.
This is a business-critical role where your ability to anticipate needs, solve problems and build strong relationships will directly contribute to the success of the organisation.
Key Responsibilities
Executive Support & Prioritisation
- Manage complex executive diaries and schedules, balancing competing priorities.
- Coordinate meetings, appointments and strategic business commitments.
- Optimise executive time and ensure leadership focus remains on high-value activities.
- Provide proactive support and anticipate future requirements.
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Governance & Meeting Management
- Prepare agendas, papers, briefing packs and presentations.
- Support Executive Leadership Team and Board-level meetings.
- Take minutes, capture decisions and maintain action logs.
- Track actions through to completion and ensure accountability.
Stakeholder Management
- Act as a key point of contact for internal and external stakeholders.
- Manage communications on behalf of senior leaders.
- Build strong relationships across all levels of the business.
- Represent the Executive Team professionally and credibly.
Travel, Events & Administration
- Manage travel arrangements, itineraries and logistics.
- Coordinate company and senior leadership events.
- Support expense management and administration activities.
- Ensure all arrangements are delivered efficiently and cost-effectively.
Continuous Improvement
- Identify opportunities to improve ways of working.
- Streamline processes and enhance efficiency.
- Anticipate risks and challenges before they become issues.
- Support effective decision-making through strong organisation and coordination.
About You
We're looking for someone who combines exceptional organisational capability with strong judgement, professionalism and emotional intelligence.
You'll likely bring:
- Proven experience as an Executive Assistant, Personal Assistant or similar senior support role.
- Experience supporting CEOs, Executive Leadership Teams or Board-level stakeholders.
- Exceptional diary, inbox and meeting management skills.
- Strong stakeholder management and relationship-building capability.
- Excellent written and verbal communication skills.
- Advanced Microsoft 365 skills including Outlook, Word, PowerPoint, Excel, Teams and SharePoint.
- Experience preparing meeting packs, presentations and executive briefings.
- Strong organisational and multitasking abilities.
- High levels of discretion, integrity and confidentiality.
- A proactive approach to problem-solving and continuous improvement.
- The ability to remain calm and effective when working under pressure.
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What Success Looks Like
In this role, you'll:
- Be recognised as a trusted partner to the CEO and Executive Team.
- Ensure executive time is managed effectively and strategically.
- Deliver high-quality governance, meeting support and follow-through.
- Build strong relationships across the organisation.
- Handle sensitive information with professionalism and discretion.
- Anticipate challenges and resolve issues before they impact delivery.
- Drive improvements to administrative and executive support processes.
Why Join Cornerstone?
At Cornerstone, we believe our people are critical to our success.
We foster a culture where everyone can do their best work and where our values guide how we operate every day:
- Everyone Matters - We value every colleague and the contribution they make.
- Innovate to Elevate - We continuously seek better ways of working.
- Do the Right Thing - We act with integrity, honesty and accountability.
- Customer First - We put our customers and stakeholders at the heart of what we do.
Our behaviours are simple: Professional. Respectful. Open.
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