Cornerstone is the UK’s leading mobile and digital infrastructure provider, managing over 15,700 sites and holding 35% of the market. Our Mission is to be famous for excellence in delivery, embracing transformation with our people and our customers at its heart.
Responsible for managing and governing the acceptance of build and upgrade activities across the Cornerstone estate. This includes overseeing the progression of sites through Operational Site Acceptance (OSA) to final handover into Operational Maintenance, verifying that completed site builds align with approved designs to support revenue assurance.
About the role
Scope:
* Verify that completed site builds align with approved designs to support revenue assurance.
* Ensure all works comply with Cornerstone Design Guidelines and are delivered to a high standard of quality.
* Drive supplier performance to achieve right-first-time delivery within agreed service levels.
* Conduct quality assurance reviews and review of Vyn audits to validate workmanship and compliance.
* Utilise telecoms site build and auditing expertise to identify and implement continuous service improvements.
* Analyse performance trends across current and legacy projects to enhance quality and operational efficiency.
* Champion best-in-class operational practices and foster innovative approaches to site delivery and maintenance
Delivery:
The Site Assurance Manager is responsible for delivering assurance and acceptance of Cornerstone’s sites following build and upgrade activities. This role ensures that all site works meet Cornerstone’s design guidelines, are completed to a high standard, and align with approved designs to support accurate revenue capture.
* Oversee the acceptance process for completed site builds and upgrades, ensuring compliance with design specifications and quality standards.
* Verify that site installations support revenue assurance by aligning with approved designs and contractual obligations.
* Review Vyn audits submitted by build suppliers to make independent decisions on the quality and completeness of site works.
* Drive supplier performance to achieve right-first-time delivery within agreed service levels.
* Foster positive engagement with internal teams and external customers to ensure smooth handovers and operational readiness.
* Support service improvement initiatives and contribute to digital transformation efforts across the estate.
* Promote continuous improvement through analysis of site performance trends and feedback loops.
Success Measures:
* Achievement of right-first-time delivery targets.
* Effective collaboration with stakeholders across the business and with customer.
* Delivery of measurable improvements in service quality and operational efficiency.
Role Expertise:
To be successful in this role, the Site Assurance Manager should demonstrate:
* Technical Expertise: Solid experience in telecom site builds, electrical systems, and asset data auditing.
* Decision-Making: Confidence in making independent decisions, particularly relating to quality assurance and governance.
* Collaboration Skills: Ability to work effectively with internal teams, external suppliers, and customers.
* Leadership & Improvement: Proven experience in leading service improvement initiatives, supporting change programmes, and mentoring team members.
Knowledge, Skills and Experience:
Required:
* Mobile infrastructure site design, build, and electrical experience
* Minimum of 5-year experience related to work in the field in the telecommunications industry
* Advanced IT skills, in particular the use of all Microsoft products
* Prior knowledge of Cornerstone Site Design guidance and process.
* Knowledge of asset types such as towers, cabinets, and active equipment
What we offer
* Competitive salary and an excellent bonus structure
* 30 days holiday
* Electric Car Scheme
* Life insurance
* Cycle to Work
* Retail Discount
* Competitive 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.
If this role is of interest to you and you would like to find out more, please do apply with an up to date version of your CV.
CORNERSTONE VALUES
Operate and uphold Cornerstones’ values of Everyone Matters, Innovate to Elevate, Do the Right Thing and Customer First by being Professional, Respectful and Open
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