Summary
Overview
Work History
Education
Skills
Timeline
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Sahar Omer

Broomfield,USA

Summary

Solid working experience in Telecommunication/Software Development domain, with wide range experience in System Administration and System Integration, Manage and supervises all billing operations and maintain high quality services. Experience in Retail/Finance/Supply Chain/Credit Control/CRM and Marketing. Extensive experience with SQL, PL/SQL, T-SQL, ETL, Shell Script. Strong knowledge and experience with IN Systems, Online Charging & Convergent Billing Systems (TABS, CBS, CBIO, BRM). Strong experience of telecoms prepaid/postpaid/convergent billing & charging architecture and associated integrations (Mediation, Provisioning, Rating, voucher management, G/L, A/R, taxation integrations). Expertise in Data Modeling/Mapping design, analyze and implement - conceptual, logical and physical data model, Data conversion, Data integration and Data Mining specialization in the area of Data Warehouse and Business Intelligence. Knowledge of Hadoop and Teradata. Excellent experience in designing OBIEE Dashboards, BI Answers, and Analytics using Administration Tool of Oracle Business Intelligence Enterprise Edition (OBIEE) on Top of Data Marts and Data warehouse. Highly experienced in using Oracle Data Integrator (ODI) to develop processes for extracting, cleansing, transforming, integrating, and loading data into Enterprise data warehouse (EDW). Expert in business process engineering and software development life cycle (SDLC), including analysis, design, development, testing and implementation of software applications. Experience working in waterfall, Agile/Scrum or iterative model projects and flexibility to work in a DevOps environment.

Overview

11
11
years of professional experience

Work History

Lead Telecom BSS/OSS

GlobalLogic, T-Mobile Conversion Operations
01.2022 - 08.2023
  • Worked with development team to build, configure and test integrations between application
  • Worked with business and technical teams to resolve technical blockers
  • Provided user and application support for escalated IT issues within integration layers
  • Assist with QA, E2E, and UAT on future systems upgrades and enhancements
  • Used critical thinking to break down problems, evaluate solutions and make decisions
  • Participated in team projects, demonstrating an ability to work collaboratively and effectively

Product Owner

IBM-Global Business Services
06.2021 - 01.2022
  • Part of the team that was working on the Voucher Management system for Dish Network
  • Developing user stories
  • Creating a product road map based on this vision
  • Overseeing all stages of product creation including design and development
  • Monitoring and evaluating product progress at each stage of the process
  • Liaising with the product team and end-users to deliver updates
  • Participating in Scrum meetings and product sprints.

Lead Technical Operations

Subex Ltd
10.2018 - 10.2020
  • Technical Operations, MS Team, Managed and supported the company biggest accounts in North America: Comcast, BTC Bahamas, and Shaw Telecommunication
  • Team leadership combining onsite/remote project activities and acting as coach/mentor to team members
  • Provided guidance and support for incident and problem resolution
  • Developed and maintained strong client relationships to deliver exceptional customer service and problem resolution
  • Managed customers' expectations of support and technology functionality in order to provide positive user experience
  • Followed up with clients to verify optimal customer satisfaction following support engagement and problem resolution.
  • Identifies opportunities for Application Delivery/Solutions Architecture to ensure high quality in all deliverables and continuous improvement in application development
  • Work closely with the developers, release managers, and first level service desk support team to facilitate acceptance and release of the new system features
  • Leads and consults on the development, review, analysis of cost and schedule performance measurement baselines and variance analyses
  • Prepare a diverse set of reports & analysis for management reporting
  • Assist as requested in identifying opportunities for improvement in work processes, training programs, personnel utilization, etc
  • Followed up with clients to verify optimal customer satisfaction following support engagement and problem resolution
  • Utilized Java, Python, and other programming languages to develop software solutions

Billing Manager, Enterprise Application Department

MTN Telecommunication Company
12.2016 - 04.2018
  • Functioned as a project liaison between MTN and contractors, vendors and Telecommunication Ministry
  • Led and trained a team of 6 employees to ensure high quality services
  • Monitored the overall billing system availability such as Provisioning, Order Management, Mediation, Interconnect, Rating, Credit Control & Collection, CRM and Roaming
  • Provide technical direction for the development, design, and systems integration for client engagement from definition phase through implementation
  • Assisted with the implementation of a new billing systems and developed plans to enhance the system
  • Provided 2nd level support and followed-up with contractors for any system malfunction or change request
  • Oversaw billing and collections processes as well as planned and implemented quality assurance for all processes
  • Assisted and followed up contractors’ experts in upgrading platforms and services
  • Helped in capacity planning and budget forecast to maintain the company growth and department operation
  • Worked with the business analysts to identify and refine business requirements, create the technical architecture, environment necessary to support the business requirements and lead offshore team for development and testing
  • Planning the implementation, documenting the functional specification documents, technical specification documents and test case documents for the business processes identified
  • Ensured after implementation support service within IT SLA enforcing the ITSM standard
  • Ensured proper execution for core IT processes (Change, Demand and Configuration Management) and ensured the execution with IT processes with the existing ITSM solution
  • Developed and implemented policies, and functional procedures pertaining to the security, maintenance and use of database and management systems
  • Dealt with the Revenue Assurance department to avoid fraud by making sure that everything such as the resource, reference data, transactions and systems are saved and covered.

Sr. Billing Specialist

MTN Telecommunication Company
06.2015 - 11.2016
  • Issued monthly bill cycle and invoices
  • Dealt with the Revenue Assurance department to avoid fraud by making sure that everything contributes with billing from the resource, reference data, transaction and systems are saved and covered
  • Handled the Credit Control Module (CCM) by managing and building rules that assign correct loops for specific category such as subscriber or contract depending on business needs
  • Monitored collecting Call Detail Records (CDRs) from various switches to their processing, filtering and formatting
  • Designed, implemented and scheduled real time provisioning integration and monitoring scripts at the Data Base (DB) level and Operating System (OS) level between billing system and various NE via EMA 7.0
  • Followed up the new batches and features installed by the vendors in TABS platform by managing and attending operations and activities
  • Implemented definition of massive new rates for interconnects and defined of new interconnects agreement and new trunks
  • Developed SQL, PL/SQL blocks for daily reconciliation, monitoring and failure resolution against the day-to-day operations

Ericsson
- 01.2016
  • Swapping MTN Core Network (GGSN , SGSN , HSS , PCRF SPS , MSCs , TSCs ) from, to HUAWIE, Gathering the new requirement of the Provisioning (EMA) and Mediation (EMM), Finalized the SCOPE , Conducting the UAT , and Follow up the operation from IT Perspective
  • Participate in establishing the LTE service in MTN by gathering the requirements, finalizing the scope, Conducting the UAT, and Follow up the operation from IT Perspective.

Billing Specialist

MTN Telecommunication Company
06.2014 - 05.2015
  • Handled SIM management operation which includes defining specifications and generating input/ output files
  • Carried out recycling process
  • Managed individual and corporate businesses by creating different business tariff plans
  • Fulfilled all marketing and business solution demands and offers such as creating main profiles, appending products, offers and services and rate plan
  • Managed inventory and CRM Module
  • Created new Rooming Partners (RPs) operator in billing system
  • Monitored fraud cases and high usage for both inbound and outbound roamers
  • Tested and validated theIR24, IR32, and IR35.

SQL/BI Developer

MTN Telecommunication Company, BI, Department
10.2012 - 05.2014
  • Contribute to the growth of BI department and enhance its functionality by the following duties:
  • Prepared, analyzed and distributed monthly revenue report, quarterly historical performance report for finance
  • Implement Sales Data Mart to meet all Sales Requirements and to be in touch with business requirements
  • Developed sales reports to analyze financial, operating, and billing processes
  • Analyzed financial data to identify relationship between operations and payment trends
  • Researched, tracked and analyzed sales information for MTN-Sudan Education and their competitors identifying market trends and growth opportunities
  • Finding the root cause of a problem and then ensuring that it is resolved through the most appropriate solutions
  • Working with the design, test and product teams to produce solutions
  • Implement BI Publisher reports, XML reports
  • Providing high level strategic, analytical direction and vision
  • Investigate, analyze and document reported defects and performed maintenance and correction for it
  • Create, document, and implement unit test plans, scripts, and test harnesses
  • Analyze and ensure efficient transition of all technical design documents and develop various SQL packages to provide support to all application developers
  • Monitor and recommend changes if required to all PL/ SQL packages and provide stored procedures and design and develop various relational database model
  • Projects & Achievements
  • Ericsson Multi Activation (EMA) upgrade to V15.0 acted as a signing authority from MTN during UAT and production deployment, 2016
  • EMA upgrade to V7.0, acted as a signing authority from MTN during UAT and production deployment, 2014
  • Service-Aware charging and control (SACC) with Ericsson team, acted as a signing authority from MTN during UAT and production deployment, 2014
  • Shared data bundle usage for groups with Ericsson team, Acted as a signing authority from MTN during UAT and production deployment, 2014
  • TABS hardware upgrade with Huawei team, 2014-2015
  • Mobile Number Portability (MNP) Project: assign the UAT with Ericsson and Huawei teams 2015

Education

Master of Science - Computer Science

University of Colorado Boulder
Boulder, CO

Bachelor of Science - Computer Science

University of Khartoum
Khartoum, Sudan
12.2012

Skills

  • Languages: PL/SQL, C, Data Structures, UNIX Shell Script, Visual Basic, Java, Python
  • Reporting Tools: OBIEE 10g/11g, BI Publisher, BI Apps, Oracle EBS
  • ETL Tools: Oracle Data Integrator (ODI), Informatica, OWB
  • Databases: PostgreSQL, Oracle databases, SQL Server 2008
  • Operating Systems: Windows XP, Windows 7, Windows 10, Linux
  • Other Tools: SSMS, PL/SQL Developer, Toad, SQL Loader, DB2, Erwin, JIRA
  • Oracle Applications: General Ledger, Accounts Receivables, Accounts Payables, Order Management, Inventory, Purchase Order
  • Data Modeling: Relational Modeling, Dimensional Modeling (Star Schema, Snowflake, Fact, Dimensions), Data Quality, Entities, Attributes, ER Diagrams, IBM-Rational Rose, MS Visio

Timeline

Lead Telecom BSS/OSS

GlobalLogic, T-Mobile Conversion Operations
01.2022 - 08.2023

Product Owner

IBM-Global Business Services
06.2021 - 01.2022

Lead Technical Operations

Subex Ltd
10.2018 - 10.2020

Billing Manager, Enterprise Application Department

MTN Telecommunication Company
12.2016 - 04.2018

Sr. Billing Specialist

MTN Telecommunication Company
06.2015 - 11.2016

Billing Specialist

MTN Telecommunication Company
06.2014 - 05.2015

SQL/BI Developer

MTN Telecommunication Company, BI, Department
10.2012 - 05.2014

Ericsson
- 01.2016

Master of Science - Computer Science

University of Colorado Boulder

Bachelor of Science - Computer Science

University of Khartoum

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