Omar Mostafa Serry

TAQA Arabia

• Senior Data AnalystFull Time

  Sep 2019 - Present -5 yrs, 9 months

  Egypt , Giza

  • Job Details:•Analysing data using SQL, Python, Power BI and Excel, extracting statistics & information to stakeholders for decision making. • Upgraded the company's data mining methodology, reducing data analysis time by 40% and increasing accuracy of results by 95%. • Use statistical techniques for hypothesis testing to validate data and interpretations • Conducted a data regression analysis achieving a 20% more accurate prediction of performance than previous years. • Updated company data warehousing techniques such as data recall and segmentation, resulting in a 50% increase in usability for non-technical staff members. • Reduce power electrical losses by 65% by performing deep analysis on customers, applied tariffs and smart meters damage. • Generating detailed dashboards using Power BI, Tableau and Excel for TAQA industry. • Create complex SQL queries and views to solve problems among TAQA’s projects & sites. • SAP master data and planner.
• Data AnalystFull Time

  Jun 2016 - Aug 2019 -3 yrs, 2 months

  Egypt , Giza

  • Job Details:• Performing daily and monthly reports, extracting data for business and information about the project’s electrical loses, P&L and KPIs. • Create complex SQL queries and views • Use python for data manipulation and cleaning • Develop quarter year dashboards using Tableau and Power Bi • Use statistical techniques for hypothesis testing to validate data and interpretations