Billing Migration, Technical Specialist

🔥 15 minutes ago

🇬🇧 United Kingdom – Remote

💵 £35k - £40k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

📊 Billing Specialist

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Onecom

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2002

📡 Telecommunications

☁️ SaaS

🔒 Cybersecurity

💰 Private Equity Round on 2019-07

Telecommunications • SaaS • Cybersecurity

Onecom is a UK-based business communications and IT services provider. It offers business mobile contracts and 5G solutions, unified communications (hosted VoIP, Teams/Zoom phone integrations), cloud contact centre platforms (omnichannel, AI-enabled, contact-centre-as-a-service), and business connectivity (broadband, full fibre, Ethernet, SD-WAN & SASE). Onecom also provides cloud services and an intelligent OneCloud platform, managed IT support (nationwide engineers), backup & disaster recovery, and cybersecurity services, and markets Halo, a fully managed AI agent workforce. The company supports hundreds of thousands of users across thousands of UK businesses.

📋 Description

• Analyse and document existing billing processes, rating structures, discounts, credits and invoicing logic within Tekton • Translate legacy billing logic into future-state requirements and configurations within aBILLity • Support data mapping, cleansing, transformation and migration readiness activities • Lead billing validation, reconciliation, parallel-run testing and user acceptance testing • Identify migration risks, billing gaps and process improvements, driving issues through to resolution • Collaborate with technical teams, business analysts, operational stakeholders and third-party suppliers • Produce documentation covering migration rules, testing outcomes, controls and operational handovers • Support cutover planning, go-live activities and post-implementation hypercare

🎯 Requirements

• Proven experience supporting billing system migrations, transformation programmes or platform replacements • Hands-on experience with aBILLity billing systems • Excellent understanding of billing logic, tariffs, recurring and usage charges, discounts, bundles and invoice cycles • Strong experience working with Finance teams on billing assurance, reconciliations and revenue-impacting decisions • Ability to analyse complex data and trace billing outcomes back to source systems and business rules • Excellent stakeholder management, communication and documentation skills • Strong experience in telecoms billing environments is desirable, ideally covering mobile, fixed-line, connectivity, managed services or subscription-based services

🏖️ Benefits

• 25 days holiday plus bank holidays, with buy/sell options • Birthday day off • 12 paid hours for flexible use • Volunteer day • 9% combined pension contribution • 4x salary life assurance • Quarterly and annual employee awards • Discounts on tech • In-House Training Academy • 24/7 access to mental health support • Discounted gym membership • Free breakfast and fresh fruit • Eye-care vouchers • Financial wellbeing support

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