Vacancy Details
Employer: Nexio
The Senior Technical Specialist: Billing & Assurance COE (BACE) is responsible for end-to-end revenue assurance execution and technical oversight across Billing & Assurance environments.
The role ensures accuracy, completeness, and integrity of billing and revenue processes through the design, execution, and continuous enhancement of assurance controls. The incumbent acts as a technical subject-matter expert, driving advanced data analysis, root-cause investigation, and revenue leakage mitigation, while supporting both operational delivery and strategic decision-making.
The role requires advanced SQL capability, deep understanding of telecom billing architectures, and strong stakeholder engagement across Nexio and client environments.ROLE REQUIREMENT
Revenue Assurance & Leakage Management
- Execute end-to-end revenue assurance activities across Billing & Assurance billing domains.
- Identify, investigate, quantify, and remediate revenue leakage risks.
- Design, implement, and maintain preventive and detective assurance controls.
- Drive recovery initiatives and track financial impact of identified issues.
Control Management & BAU Execution
- Own BAU execution and monitoring of assurance control frameworks.
- Ensure controls operate consistently across systems, products, and billing cycles.
- Partner with DevOps and IT teams to automate assurance controls where feasible.
Data Analysis & Technical Execution
- Perform advanced data extraction, validation, and analysis using Oracle / Teradata SQL.
- Develop and maintain scripts to support reconciliations, reporting, and investigations.
- Validate data integrity across source systems, mediation, and billing platforms.
- Produce dashboards and reports highlighting trends, risks, and control performance.
Root Cause Analysis & Resolution
- Conduct detailed root-cause analysis on billing mismatches and anomalies.
- Drive cross-functional resolution with IT, Operations, and Finance teams.
- Implement preventative measures to avoid recurrence of issues.
Process & System Improvement
- Analyse business processes and data models to identify risk points.
- Contribute to solution design, prototypes, and enhancements with Data Enablement teams.
- Continuously improve assurance methodologies and tooling.
Stakeholder Engagement & Reporting
- Engage with internal stakeholders and clients to communicate findings and risks.
- Prepare and present assurance insights to senior management.
- Escalate critical issues timeously and track resolution to closure.
Technical Mentorship
- Provide technical guidance and informal mentorship to junior assurance analysts.
- Contribute to capability uplift and knowledge sharing within the Billing CoE.
PROFESSIONAL COMPETENCIES
- Analytical and investigative thinking
- Strong attention to detail
- Accountability and ownership
- Stakeholder influence and communication
- Ability to operate independently in complex environments
QUALIFICATIONS & EXPERIENCE
Matric
Diploma or degree in Information Technology, Computer Science, or related field.
Post graduate qualification in Management, IT or related field advantageous.
7–10 years’ relevant experience in:
- Revenue Assurance, Billing Operations, or Financial Control within a similar environment.
- Advanced SQL-based data analysis and investigations.
- Complex, multi-system billing landscapes.
- Knowledge and understanding of Telecommunications business operations and in-depth technical (order management) capabilities.
- SQL Advanced Certification and experience Essential (i.e. Oracle PL/SQL / T-SQL / Informix).
- Knowledge and experience of RA / BA Operations with Telecom Operator.
- Experience in financial and/or operational auditing / investigations methodologies and tools.
- Experience in business process analysis, modelling and re-engineering.
- Knowledge of IT or system audit and data analysis experience.
- Siebel and other SRM related systems experience.
- Strong analytical and technical abilities.
- Knowledge of Product Development Processes.
- Advanced computer skills with Microsoft Office Suite.
1 person has applied for this job. 109 people have viewed this job.
About Nexio
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