Profileimage by Aydan OEzenir Senior Managing Consultant, Senior Business Analyst, Billing Team Leader from Istanbul

Aydan Özenir


Last update: 06.09.2022

Senior Managing Consultant, Senior Business Analyst, Billing Team Leader

Graduation: not provided
Hourly-/Daily rates: show
Languages: German (Elementary) | English (Full Professional) | Turkish (Native or Bilingual)




20+ years of Business Anaysis and Consulting experience in Mobile Telecommunication Companies. 
Knowledge of BSS/OSS, charging and billing systems, OCS revenue assurance, mediation, as well as know-how on 2G/3G/4G/5G networks. 
Good knowledge of core network - charging integration, TMF standards
Good knowledge of Microsoft tools, SQL

Project history

10/2010 - 12/2020
Senior Consultant & Business Analysis Team Leader
i2i Systems

Worked as a Lead Business Analyst and Consultant in various projects including;

TM Forum Catalyst, The Aviator: Company lead for the catalyst which is part of the DWS 2020.

Deutsche Telekom 5G Project: Technical Lead for 5G BSS PoC implementations. Responsible for the overall conceptual design and billing related deliverables.

Fizz: Lead Analyst for Mediation, Provisioning and Online Charging System for a green field MVNO in Quebec Province, Canada. Responsibilities included following up integration with Network elements such as SMSC, SCP, PGW, and with BSS systems (CRM); gathering customer requirements and making sure that the deliveries match these requirements; weekly liaisons with the customer representatives.

Turkcell Revenue Assurance Project: Implementation of WeDo Technologies RAID tool for Rating and Billing Validations, E2E and Provisioning controls. Acted as the Lead Business Analyst during the first phase of the project and then took over the Project Manager / Design Lead role during other phases.

Avea Rating and Invoice Verification Project: Acted as Revenue Assurance Consultant during implementation of in-house developed rating and invoice validation tool.

Aksa Utilities Charging: Lead Business Analyst in the development and implementation of an in-house developed energy charging and billing tool, with Microsoft Dynamics CRM integration.

09/2009 - 09/2010
Senior Managing Consultant
IBM Global Business Services (>10.000 employees)

Acted as Vodafone Turkey Account Manager, following up leads, projects and deliverables of IBM GBS; as well as a consultant in various Charging & Billing project proposals.

09/2006 - 10/2008
Senior Business Analyst
Atos Origin (>10.000 employees)

Turk Telekom Transformation Project – Design Authority in Charging & Payment Systems

Fintur CRM Project – Senior Analyst and Telco Consultant for Siebel CRM implementation

Avea Convergence Project – Project Manager for Prepaid PoC and Senior Business Analyst for Pre-paid & Postpaid implementation (BSCSiX migration)

11/2001 - 05/2006
Billing Team Leader
3 UK (1000-5000 employees)

Worked as the implementation analyst and billing design team lead where Singl.eView (CGI) is used as the online rating and billing system. Responsibilities include preparing impact assessments, review of all billing related design and development activities to ensure the scope and quality of the delivery. Also took part as the lead designer in various projects including UK launch of Post and Prepaid products, migration of the billing system (international project with other H3G companies), and various projects that required billing system changes. Designed and specialized in rating functionality, including voice, content and messaging. Also responsible for planning the delivery schedule, managing the team’s work schedule, as well as following up production defects assigned to the billing team.

IT department of 3 have been outsourced to Ericsson in December 2005.

11/1997 - 05/2001
Senior Business Analyst
Turkcell (1000-5000 employees)

Worked on various projects in the GSM market leader in Turkey, mainly in rating and billing related areas. BSCS is used as the Billing and Customer Care software. Duties include project planning, monitoring, follow up of new technologies, evaluation of new Billing Systems.

International Projects - IT Project Leader for International Projects in K-Cell (Kazakhstan), KKTCell (Northern Cyprus) and Moldcell (Moldova). Other projects include Billing and Printing, Pre-Paid, Migration from BSCS V.3.02 to BSCSV.5.1 and OTA IT project leader.

Evaluated and selected Billing Systems for GPRS and WAP services.

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Profileimage by Aydan OEzenir Senior Managing Consultant, Senior Business Analyst, Billing Team Leader from Istanbul Senior Managing Consultant, Senior Business Analyst, Billing Team Leader