Summary
Overview
Work history
Education
Skills
Websites
LANGUAGES
REFERENCES
ADDITIONAL
Timeline
Generic

SIBORA DHOQINA

London

Summary

Billing Analyst with 3+ years of experience turning complex billing and revenue data into clear, actionable insights. Skilled in SQL (BigQuery), Looker, and advanced Excel to query large datasets, automate reporting, and surface discrepancies before they become problems. Proven record of process improvement in a fast-paced energy business — now seeking a Data Analyst role where analytical rigour drives commercial decisions.

Overview

3
3
years of professional experience

Work history

Energy Billing Analyst

Utility Warehouse Ltd
London
2023.01 - 2026.06
  • Data Analysis & Insights: Queried and analysed datasets of 100,000+ customer accounts using SQL (BigQuery) to identify billing discrepancies, revenue leakage, and trends — delivering weekly insight reports to senior stakeholders.
  • Reporting Automation: Designed and automated recurring billing and revenue reports in Looker and Excel, reducing manual reporting effort by ~35% and enabling faster decision-making across the finance team.
  • Billing Operations & QA: Managed end-to-end billing validation across invoices, payments, and account reconciliations, maintaining data accuracy across a high-volume customer portfolio.
  • Issue Resolution: Led root-cause investigations into billing anomalies, collaborating with product, finance, and operations teams to resolve issues and prevent recurrence.
  • Data Integrity: Maintained and updated customer datasets (meter readings, tariffs, payment plans) ensuring consistency across multiple systems and reducing downstream data errors.
  • Process Improvement: Identified and implemented process changes that streamlined data retrieval and validation workflows, contributing to measurable efficiency gains across the billing team.

Education

BSc Business Management - Economics

University of Westminster
London

Skills

  • Tools & Platforms: SQL
  • BigQuery
  • Looker
  • Microsoft Excel (Advanced)
  • Google Sheets
  • Analysis: Data validation & QA
  • Revenue & billing analysis
  • Trend analysis
  • Reporting automation
  • Soft Skills: Cross-functional collaboration
  • Process optimisation

Websites

LANGUAGES

English
Fluent
Albanian
Native
Greek
Native

REFERENCES

Available on request.

ADDITIONAL

Full UK Driving Licence (B)

Timeline

Energy Billing Analyst

Utility Warehouse Ltd
2023.01 - 2026.06

BSc Business Management - Economics

University of Westminster
SIBORA DHOQINA