Billing Specialist — Part Time

China Telecom Global; Greater London; On-site; GBP 24,000 - 42,000; Part time

Job summary

China Telecom Global in London is seeking a detail-oriented Part Time Billing Specialist to oversee the billing function for our Voice wholesale unit and monitor internal controls related to profitability and cash flow. The role requires a strong background in billing processes, credit management, and accuracy, with a proactive, can-do attitude.

You will collaborate with the Voice Business Manager to review monthly traffic, issue invoices at month start, and keep partner billing data up to date.

Qualifications

• Bachelor’s degree from a UK-recognized university.
• Proficient in English; Mandarin language skills would be an advantage.
• Excel proficiency with VLOOKUP and PivotTables.
• Detail-oriented and able to work under pressure to meet deadlines.
• Strong teamwork and stakeholder‑relationship skills.
• Experience relevant to billing or credit management is a plus.

Responsibilities

• Review monthly traffic and issue voice wholesale invoices at the start of each month.
• Maintain up-to-date billing information for wholesale partners.
• Summarize Voice wholesale invoices and manage netting with partners; collect and allocate payments.
• Perform SAP-based account clearing and reconciliation for data accuracy.
• Collaborate with Voice Business Managers to resolve invoice uncertainties and disputes.
• Handle and investigate risk-control tickets related to negative margin and cash flow.
• Cross-check data across internal systems to identify profitability or cash flow anomalies.
• Identify abnormal transactions and escalate potential risks; support internal control improvements.

Skills

English language

Mandarin language

Team player

Detail-oriented

Deadline-driven

Education

Bachelor's degree (UK)

Tools

Microsoft Excel (VLOOKUP, PivotTables)

Job description

We are seeking a detail-oriented and proactive individual to join our Finance Department as a Part Time Billing Specialist:. This role will be responsible for overseeing the billing function for our Voice wholesales business unit and conducting internal control and risk monitoring activities related to profitability and cash flow exceptions. The ideal candidate will have a strong background in billing processes, credit management, and a keen eye for accuracy.

Responsibilities:

• Voice wholesales business related:
• Collaborate with Voice Business Manager to review monthly traffic for each partner and issue voice wholesale invoices at the start of each month.
• Keep all wholesale partners' billing information up to date.
• Summarize Voice wholesale sale and purchase invoices, communicate and initiate netting with partners. Submit payments for payable netting; collect and allocate payments for receivable netting.
• Perform account clearing and reconciliation in SAP to ensure data accuracy and consistency between financial and business records.
• Work closely with Voice Business Managers to address invoice uncertainties and manage disputes raised by partners.

2.Internal control related:

• Handle and investigate tickets assigned through the risk control platform, including cases related to negative margin and negative cash flow.
• Cross-check and reconcile data across multiple internal systems to identify root causes of profitability or cash flow anomalies.
• Analyse operational and financial data to determine reasons for negative profit situations and provide timely feedback and recommendations.
• Support internal control processes by identifying abnormal transactions and escalating potential risks when necessary.
• Assist in improving billing accuracy and strengthening internal financial control procedures.

Requirements:

• Bachelor’s degree from a recognized university in the UK.
• Relevant working experience is preferred.
• Proficient in English; Mandarin language skills would be an advantage.
• Strong team player with the ability to build and maintain effective internal and external stakeholder relationships.
• Advanced proficiency in Microsoft Excel, including functions such as VLOOKUP and PivotTables.
• Proactive, detail-oriented, and able to work under pressure while consistently meeting deadlines with a positive can-do attitude.