Mobile Billing Specialist
Birmingham (2 days per week in office with flexibility)
Full-time | Permanent
(Internal Job Level Reference : Senior Associate)
About the Role
We’re looking for a highly organised and detail-driven Mobile Billing Specialist to join our growing team. This role sits at the heart of the mobile operation, co-managing day-to-day billing activities across internal and external systems.
Working in a fast-paced environment, you’ll collaborate closely with account managers, provisioning teams, suppliers, and wider billing teams to ensure billing accuracy, efficiency, and continuous improvement. This is a fantastic opportunity to build deep expertise across billing systems, supplier management, and cross-functional operations.
Key Responsibilities-
Manage and respond to queries within the billing mailbox, ensuring timely and professional communication
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Perform weekly bill run checks, identifying and resolving issues such as unallocated usage, missing services, and incorrect data
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Review Profit & Loss accounts to identify billing anomalies, rating errors, and revenue opportunities
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Support the monthly billing cycle, ensuring all supplier files are processed, services allocated, and products correctly mapped
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Manage tariffs and bolt-ons, including creating new tariff sets and retiring legacy ones
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Work closely with internal stakeholders and external suppliers to resolve billing queries and discrepancies
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Support billing migrations linked to mergers and acquisitions activity
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Verify supplier billing accuracy and raise/chase credits where needed
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Ensure adherence to regulatory and compliance requirements
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Suggest and implement process improvements to enhance efficiency and accuracy
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Assist with ad-hoc billing projects as required
Requirements
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Strong ability to prioritise and manage a busy workload with competing deadlines
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Excellent organisation and time management skills
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Confident communicator, both written and verbal
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Highly analytical with exceptional attention to detail
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Ability to work independently and make sound decisions
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Strong Excel skills, including VLOOKUPs and Pivot Tables
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Reliable, punctual, and proactive approach
Desirable Skills-
Previous experience in a billing role
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Experience within the mobile or telecoms industry
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Familiarity with billing platforms or CRM/database systems
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Experience working with internal and external billing systems
Benefits
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Clear progression pathways with opportunities to advance within a growing organisation.
