Summary
Overview
Work History
Education
Skills
Timeline
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Rati Sareen

Delhi

Summary

Results-driven professional with extensive experience at Deloitte and a strong background in data analysis and internal audit. Proven track record in enhancing revenue assurance processes and improving operational efficiency. Skilled in SQL scripting and adept at collaborating with cross-functional teams to achieve compliance and drive significant revenue savings.

Overview

6
6
years of professional experience

Work History

Assistant Manager

Deloitte
Gurgoan
06.2024 - Current
  • Conducted detailed internal audit of billing and collection processes for Middle Eastern operator. Reviewed billing policies and controls to ensure contract compliance, financial accuracy, and improved credit risk management through data analytics.
  • Evaluated billing data alignment with general ledger, enhancing dispute management effectiveness.
  • Participated in the internal audit of Fintech and GSM KPIs for a leading African operator, validating SQL scripts across OPCOs to ensure compliance with group-level definitions. Identified process inconsistencies, collaborated with technical and business teams, and recommended corrective actions to enhance KPI accuracy and standardization.
  • Led data migration for a leading Indian hydropower company, ensuring accurate extraction, transformation, and validation of data by collaborating with stakeholders, and analyzing source and target systems.

Consultant

Ernest & Young
Gurgaon
08.2021 - 06.2024
  • Performed critical revenue assurance controls for a leading African telecom operator, focusing on billing validation, mediation, CDR reconciliations, invoice, and dispute checks. Played a key role in conducting RA control reviews, particularly within the Interconnect stream, to identify revenue leakages, process gaps, and improve existing processes to ensure compliance and operational efficiency.
  • Participated in statutory and ICFR audits for major telecom operators in South Africa and Myanmar, managing process reviews across postpaid, prepaid, data, and interconnect revenue streams. Focused on identifying process gaps, detecting revenue leakages, and uncovering potential fraud, while providing recommendations to strengthen revenue assurance governance, and operational efficiency.
  • In addition to revenue assurance expertise, strong skills in data analysis were applied by utilizing SQL functions and advanced Excel techniques to automate the execution of RA controls.

CDM Expert

British Telecom
Gurgaon
03.2019 - 05.2021
  • Maintained inventory data quality for the AIA contract by processing daily updates, reconciling multiple system reports, and ensuring data integrity in the central repository.
  • Served as the Operational SME for CDM support, prepared regular inventory reports, and coordinated with contract managers and business development teams.
  • Contributed as part of the recovery team and second line of defense for the B2C segment, executing controls for BB, PSTN, TV, and Mobile services—such as billing-no service, service-no billing, and duplicate charge checks—resulting in significant revenue savings.

Education

Master of Commerce -

IGNOU
Delhi
01-2018

Bachelor of Commerce -

Delhi University
Delhi
01-2014

Skills

  • Data analysis
  • SQL scripting
  • MS office proficiency
  • Internal audit
  • Revenue assurance

Timeline

Assistant Manager

Deloitte
06.2024 - Current

Consultant

Ernest & Young
08.2021 - 06.2024

CDM Expert

British Telecom
03.2019 - 05.2021

Master of Commerce -

IGNOU

Bachelor of Commerce -

Delhi University

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Rati Sareen