Data Analyst
Current• Conducted comprehensive statistical data analyses and modelling using SQL, Python, Power BI, Tableau, and Microsoft Excel, driving data-driven decision-making; identified cost-saving opportunities, resulting in a 15% reduction in operational expenses.• Performed ETL processes utilising Power Query in Power BI and Microsoft Excel to harmonise data from diverse sources and for proper data cleaning, resulting in a 40% reduction in data preparation time.• Spearheaded the design and construction of interactive dashboards in Tableau, Power BI and Excel, integrating advanced functionalities such as Pivot table/charts, VLOOKUP, XLOOKUP for detailed analysis of sales and income reports.• Analysed company data from different sources to identify trends and obtain insights into operational and procedural improvement, boosted data-driven decision-making process, resulting in a 30% increase in revenue and 20% reduction in errors.• Developed dashboards, highlight triggers and constraints and perform reviews for weekly management-level reporting based on specified criteria using Power Bi ahead of Weekly interdepartmental meetings leading to more effective interdepartmental discussions and better alignment across teams.• Coordinated monthly cohort analysis in collaboration with product manager and cross-functional team, identifying revenue-boosting opportunities by analysing user behaviour and segmentation, resulting in a 25% increase in average purchase value.• Analyzed stakeholder requirements and business objectives, creating detailed data specifications to ensure accurate data extraction and alignment with customer needs; improved data quality, increasing stakeholder satisfaction and customer retention by 20%.