Kundai Nelly Semu
East London
Summary
Analytical IT professional experienced in database administration and data analysis. Specialises in SQL data management, translating complex datasets into actionable insights. Maintains data integrity and optimises database performance to support data-driven decision-making. Focused on leveraging data science techniques to drive business value.
Overview
3
3
years of professional experience
Work History
Systems Engineer
Headington Technology Solutions Pty Ltd
01.2025 - 07.2026
- Managed Windows and Linux server infrastructure to ensure optimal performance and reliability.
- Monitored performance and resolved system issues to maintain system uptime and user satisfaction.
- Configured networks, firewalls, and virtualisation systems to enhance security and connectivity.
- Implemented backups, disaster recovery, and security updates.
- Developed scripts to automate repetitive tasks, improving efficiency.
- Provided advanced technical support to clients.
- Maintained technical documentation and reports.
Junior Data(ICT System) Analyst
Webapp Creative PTY LTD
06.2024 - 12.2024
- Wrote SQL queries to extract and validate data, ensuring accuracy for analysis.
- Collected, cleaned, and analysed data for web projects to inform decision-making.
- Built dashboards in Power BI/Tableau for performance tracking.
- Performed exploratory data analysis to find insights.
- Analyzed SEO, traffic, and user behaviour metrics.
- Automated reports using Python (Pandas, NumPy).
- Collaborated with cross-functional teams to deliver actionable data-driven solutions.
- Ensured data quality and supported A/B testing analysis.
Junior Database Administrator
Webapp Creative PTY LTD
01.2023 - 05.2024
- Managed MySQL/PostgreSQL databases for web applications, ensuring high availability and performance.
- Performed maintenance, including backups, restores, indexing, and tuning, to optimise database reliability.
- Optimized SQL queries and improved performance.
- Assisted with schema design and database deployments, facilitating smooth integration of new features.
- Troubleshot database issues and reduced downtime.
- Implemented access controls and security measures.
- Supported cloud databases (e.g., AWS RDS).
- Maintained documentation and supported data migrations.
Intern
Webapp Creative PTY LTD
01.2022 - 12.2022
- Gained practical knowledge in industry settings and applied concepts to real-world scenarios.
- Analyzed problems and helped develop team solutions.
- Collaborated with interns on projects to deliver cohesive presentations.
- Investigated new technologies for process improvement to streamline processes.
- Improved proficiency in various software tools.
- Supported staff in daily tasks to enhance team efficiency.
- Organized files, spreadsheets, and reports.
Education
Bachelor of Science - Information Technology(Data Science)
05-2025
- Member of The Institute of IT Professionals South Africa(IITPSA)
Skills
- Data analysis and visualization
- Statistical analysis
- Python programming
- Machine learning
- Programming skills
- Systems analysis
- IT management
- Advanced troubleshooting
- SQL querying and databases
- Database management
- Reporting and documentation
- Time-management
- Team collaboration
- Stakeholder engagement
- Decision making
- Communication
- Stress tolerance
Languages
English
Proficient
C2
xhosa
Elementary
A2
shona
Advanced
C1
Timeline
Systems Engineer - Headington Technology Solutions Pty Ltd
01.2025 - 07.2026
Junior Data(ICT System) Analyst - Webapp Creative PTY LTD
06.2024 - 12.2024
Junior Database Administrator - Webapp Creative PTY LTD
01.2023 - 05.2024
Intern - Webapp Creative PTY LTD
01.2022 - 12.2022
Eduvos - Bachelor of Science, Information Technology(Data Science)
Interests
- Reading
- coding practises and project experiments
- golf