Admin assistant Transmission Southern Maintenance

Company: Cornerstone
Apply for the Admin assistant Transmission Southern Maintenance
Location: Orpington
Job Description:

Admin Assistant

St Mary Cray | £28.4k – £32.7k per annum (Dependent on skills & qualifications)

Full-time | Office based

We’re looking for a highly organised and proactive Administrator to join our Operational Support function. This is a great opportunity for someone who enjoys working in a fast‑paced environment, supporting teams who help keep our network running safely and efficiently.

In this role, you’ll play a key part in ensuring the smooth day‑to‑day operation of our teams by providing high‑quality administrative support, accurate reporting, and reliable coordination. You’ll be joining a friendly and collaborative team where your contribution will make a real difference.

Responsibilities

  • Supporting the scheduling and coordination of operational activities, meetings and team resources
  • Maintaining and updating plans and operational documents using our internal systems
  • Compiling and validating operational data for internal reports and dashboards
  • Ensuring accuracy and consistency of information across systems and documentation
  • Preparing, printing and collating documents such as work packs and compliance records
  • Managing digital and physical filing systems in line with SGN standards
  • Handling day‑to‑day admin tasks including correspondence, record keeping and ordering office supplies
  • Assisting the wider team with ad‑hoc operational support as required

Qualifications

  • The ability to communicate effectively and politely, both verbally and in writing, with employees, managers and customers within and outside the Company
  • A neat and accurate working style, along with strong computer literacy, ideally with competence in Microsoft software packages such as Word and Excel
  • The ability to prioritise and manage your time and workload and be able to work as part of a team
  • A keen eye for detail and problem‑solving abilities
  • Preferably, previous administrative experience, ideally within utilities, engineering or operational environments

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Posted: July 17th, 2026