Tatenda Mare
Harare
Summary
A results-driven Data Scientist with a strong background in transforming raw data into actionable business insights. Skilled in data modelling, ETL processes, dashboard development and performance reporting using tools such as Power BI, SQL Server and Python. Demonstrated ability to integrate and analyze data to support decision-making, improve operational strategies and create data-driven strategies. Passionate about solving problems using data and fostering a data-centric culture within financial and business environments with experience in financial analysis and operational support.
Overview
1
1
year of professional experience
1
1
Certification
Work History
Data Analyst
OK Zimbabwe
10.2023 - 06.2024
- Consolidated and transformed SMSS19 sales data using ETL processes, increasing auditing reporting accuracy by 20% and ensuring data integrity
- Produced 20+ financial reports (sales, GRVs, voids), enabling faster variance analysis and data-driven decision-making in line with financial analysis requirements.
- Cleaned and validated large datasets using Excel, Power Query, and SQL, reducing data errors by 30%+ and enhancing data quality.
- Designed interactive Power BI & Excel dashboards tracking KPIs for 70+ branches, improving reporting efficiency by 40% and supporting business intelligence initiatives.
- Conducted stock, cash, and system reconciliations during audits, identifying discrepancies and strengthening compliance controls through meticulous information management.
- Optimized SQL queries, reducing report generation time by up to 50% and improving data reliability for operational support.
- Supported IT audits by reviewing system controls, contributing to improved security and data governance through effective information management practices.
Education
Bachelor of Science - Data Science And Systems
University of Zimbabwe
Harare08-2025
Skills
- Machine Learning
- AI
- Data Analysis
- Data Science Techniques
- Power BI
- Report Building
- Information Management
- Predictive Modelling
- Financial Forecasting
- Data Visualization
- SQL
- Data cleaning
- Data Collection
- Statistical Tools
- Database management
- ETL processes
- Data mining
- Data science
- Strategic Planning
- Analytical
- Collaboration
- Resilient
- Effective Communication
- Decision Making
- Preparedness
- Leadership
Certification
IBM Data Science
Languages
English
Full Professional
Timeline
Data Analyst
OK Zimbabwe
10.2023 - 06.2024
Bachelor of Science - Data Science And Systems
University of Zimbabwe
References
Mrs F.Dhliwayo
IT Audit
Senior IT Auditor (OK ZIMBABWE LIMITED)
Work email:fdhliwayo@okzim.co.zw
Mobile number: +263 71 9750126
Ms T.Chiwara
IT Audit
IT Auditor (OK ZIMBABWE LIMITED
Work email:tchiwara@okzim.co.zw
Mobile number: +263 78 5188827