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Mariam Tadros

@mariamtadros

Senior BI & Business Operations Analyst at Orange Business Services who improved executive reporting data accuracy by 15%.

Egypt

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What I'm looking for

Flexibility

At Orange Business Services, I built and enhanced Power BI dashboards that consolidated more than 10 financial and resource metrics, improving executive reporting data accuracy by 15%. I also served as Product Owner for the resource forecasting tool and produced reporting for revenue forecasts, P&L reviews, and billable hours.

Earlier at Orange Business Services, I designed financial programs and margin improvement tools for sales teams, and coordinated software change releases, UAT, and end-user training. My work has also included service delivery, customer order processing, and building a best-practice knowledge base for Service Implementation.

Experience

Work history, roles, and key accomplishments

Senior BI & Business Operations Analyst

Orange Business Services

Jan 2021 - Jun 2026 (5 years 5 months)

Built and enhanced Power BI dashboards using DAX and Power Query, consolidating financial and resource metrics and improving executive reporting accuracy by 15%. Led monthly revenue forecasting and annual budgeting for European sales operations, collaborating with Sales and Finance to deliver P&L reviews.

Power BI DAX Power Query Revenue Forecasting P&L Analysis Financial Reporting Budget Planning Business Analysis Data Storytelling Process Automation Agile Stakeholder Management

Margin Improvement Business Analyst

Orange Business Services

Mar 2016 - Jan 2021 (4 years 10 months)

Built financial programs enabling sales teams to identify costs, margins, and revenue streams with greater accuracy. Designed margin improvement tools and processes, validated Power BI reports for data integrity, and led end-of-life project transitions.

Financial Analysis Margin Improvement Power BI SharePoint Data Integrity Project Management Stakeholder Management

IT Project Manager & Process Owner

Orange Business Services

Nov 2012 - Mar 2016 (3 years 4 months)

Orchestrated 12 software change release cycles for Service Transition, authoring change requirements, tracking developer progress, managing UAT, and delivering end-user training. Led process and tool improvement initiatives within Service Implementation.

Project Management Change Management UAT Process Improvement Knowledge Management Training

Service Delivery Manager

Orange Business Services

Jun 2005 - Nov 2012 (7 years 5 months)

Oversaw on-time delivery of all service orders by monitoring TDD/CDD and LTC metrics, maintaining high customer satisfaction scores. Managed end-to-end order processing and database integrity, and built enterprise customer relationships.

Service Delivery Customer Satisfaction Order Management Database Management Reporting Stakeholder Management

Education

Degrees, certifications, and relevant coursework

Ain Shams University

Bachelor of Science, Electrical Engineering, Electronics and Communications

1997 - 2002

Grade: Good (70%)

Activities and societies: Graduation Project: Design of high-speed modem using FPGA (Field Programmable Gate Array) Technique - Grade: Distinction

B.Sc. of Electrical Engineering, Electronics and Communications department. Graduated with a cumulative grade of 70% and a distinction on the graduation project.