Marketing Co-Ordinator

Vision: To be the UK's leading digital infrastructure partner, enabling a fully connected future.

Mission: Deliver reliable, high quality site access, infrastructure and services that support our customers' evolving connectivity needs. Build the brand that drives our next phase of growth.

For almost two decades, Cornerstone's infrastructure has quietly supported the UK's mobile networks. As we accelerate into new products, new markets, and new opportunities, you will play a defining role in what our success will be.

The Role

To keep the marketing engine running smoothly - coordinating workflows, handling the day-to-day admin, and making sure everything is planned, organised and delivered on time. You'll free up senior capacity, improve visibility of work in progress, and help keep campaigns, assets and reporting running consistently.

Why This Role Matters

This role is critical to scaling how marketing delivers. By improving coordination, visibility and ways of working, you'll enable the team to operate more efficiently, reduce friction, and consistently deliver high-quality campaigns and content.

What You'll Do

• Keeping marketing moving - campaign timelines, assets, approvals and publishing (including newsletters).
• Running the engine room - maintaining trackers, dependencies and day-to-day coordination.
• Keeping everyone aligned - managing approvals, agency admin and POs (as required).
• Coordinate delivery activity including meetings, stand-ups, diaries, on-site shoots and video recordings to ensure everything runs smoothly.
• Support team prioritisation and workload discipline by maintaining trackers, action logs and dependency management.
• Act as a 'runner', working closely with Customer Office Ops & Performance to keep governance aligned and plans on track.
• Keep plans on track - manage timelines, owners, dependencies, risks & escalations.
• Run the rhythm - coordinate meetings, agendas, actions & progress updates (including All-Hands & events).
• Power content delivery - support internal comms, newsletters, asset sharing & publishing across platforms.
• Keep the admin flowing - support POs, suppliers and invoice tracking with Customer Ops.
• Keep things organised - maintain SharePoint, naming conventions, templates & version control.
• Support planning cycles - help pull together inputs for quarterly planning and reporting.

What You'll Bring

You've got a solid grounding in marketing basics - campaigns, channels and assets - and you're comfortable using tools like Teams and SharePoint. You're highly organised, proactive and a clear communicator who keeps things moving and gets the detail right. Confident working with different stakeholders, you bring structure, discipline and a calm, can-do approach. Whether through work or study, you've juggled multiple deadlines, love collaborating with others, and have a genuine interest in building a career in marketing.

Why Join Us?

• Reward & Recognition: Competitive salary and an excellent bonus structure.
• Time to Recharge: 30 days' annual leave.
• Long Term Security: Competitive pension scheme and life insurance.
• Flexibility: Hybrid working to help you balance work and home life.
• Health & Wellbeing: Private medical insurance including dental and optical cover.
• Lifestyle Perks: Cycle to Work scheme, Electric Car scheme, and retail discounts.
• Community & Growth: A generous refer a friend scheme.

Our commitment to Equity, Diversity, and Inclusion (EDI) is fundamental to our success. We strive to cultivate an inclusive environment where every employee feels valued, respected, and empowered. By embracing unique perspectives and experiences, we drive innovation and drive our organisation forward, therefore, we recognise the importance of welcoming applications from candidates of all backgrounds. We want to ensure everyone is able to present their best self throughout the recruitment process so if you require any adjustments, please let us know.