• Run telecoms billing cycles and perform billing checks and validations 

• Investigate and resolve billing queries from customers and suppliers 

• Participate in tariff updates and API cost adjustments  

• Manage CDR (Call Detail Record) access, extraction, reconciliation, and remittance 

• Support general billing and accounts administration tasks 

• Maintain accurate billing documentation and audit-ready records 

• Support internal management reporting and operational processes 
  

Customer Success & Operational Support 

• Schedule and coordinate customer service reviews and prepare service reports 

• Support provisioning of customer services and onboarding activities 

• Maintain customer databases and ensure data accuracy 

• Support internal management reporting and operational processes 

• Contribute to Continual Service Improvement (CSI) activities 

• Provide ad hoc administrative support where required 

• Maintain strong communication and relationships with client service stakeholders 

• Assist in sales activity coordination and follow-up 

• Liaise with suppliers, vendors, and service partners 

Ideal Candidate Profile:

We are looking for someone who brings professionalism, initiative, and a strong commitment to delivering excellence. The ideal candidate will: 

• Demonstrate excellent administrative, organisational, and time management skills 

• Be a proactive self-starter who can work independently or collaboratively 

• Have strong data handling and presentation capabilities 

• Show exceptional attention to detail 

• Communicate confidently with excellent written and verbal English skills 

• Be quick to learn and understand new technologies and services 

• Have strong working knowledge of the Microsoft 365 suite 

• Display a committed, positive, and proactive attitude 
   

Required Skills and Experience:

• Strong ability to manage multiple tasks and deadlines. 

• Excellent documentation discipline (useful for billing records, service reports, audit trails). 

• Ability to coordinate meetings, prepare reports, and manage customer follow-ups. 

• Experience processing invoices (sales & purchase). 

• Familiarity with billing checks, reconciliations, tariff updates. 

• Strong numeracy and accuracy with data. 

• Confident communication via email, chat, and calls with UK clients. Professional tone and client friendly communication style. 

• Familiarity with internal reporting, customer data accuracy, and CSI (continual service improvement).  

• Confident in Microsoft 365 (Excel, Outlook, Teams, SharePoint, OneDrive). 

• Comfortable learning new platforms (CRM, billing platforms,). 

• High attention to detail  

• Proactivity — someone who doesn’t wait to be told what to do. 

• Strong problem-solving ability, especially for billing disputes or customer queries. 

Essential Experience:

• 2–4 years experience in an administrative and billing, finance assistant roles 

• Experience supporting UK, US, or AU clients 

• Exposure to invoicing and reconciliation processes. 

• Experience preparing reports, and handling customer related admin.