Sigcino Ntshangase
Data & Business Intelligence Specialist
Cape Town,WC
Summary
Results-driven Data & Analytics Specialist with over 2 years of experience in data analysis, business intelligence, and data warehouse management. Proficient in SQL, Power BI, and AWS, with a strong track record of aiding in robust ETL processes design, developing performance dashboards, and delivering high-impact insights that support strategic business decisions.
Demonstrated ability to collaborate effectively with stakeholders and cross-functional teams to ensure data accuracy, streamline reporting, and enhance operational efficiency.
Committed to data quality and continuous improvement, with a strong passion for learning and leveraging technology to drive business growth.
Overview
2026
2026
years of professional experience
2033
2033
years of post-secondary education
3
3
Certifications
Work History
QA Data Analyst
RedPanda Software
01.2025 - Current
- Developed monitoring reports for newly built Data Warehouse (Consumer, Replayer, Recovery Tools) to detect processing failures, transaction spikes, and latency issues, improving data flow visibility and reliability.
- Built advanced SQL queries drawing from multiple data sources to support reporting, analytics, and ad hoc investigations across retail operations.
- Conducted rigorous testing of client-facing reports, validating SQL logic and outputs against source tables and the enterprise data warehouse to ensure accuracy and consistency.
- Designed and maintained a performance dashboard to track and visualize data warehouse performance metrics and system health.
- Resolved complex SQL exceptions, including handling incorrect CLOB data in the data warehouse, ensuring seamless data integration and access.
- Performed end-to-end analysis of the Flash reporting system, mapping report codes to source systems and verifying data accuracy.
- Created logic to identify undelivered invoiced items, helping to trace missing items back to specific branches for resolution.
- Supported retail operations across 900+ branches, providing data solutions to improve reporting accuracy and operational decision-making.
- Debugged and corrected logic errors in stored procedures responsible for generating branch-level reports.
- Led investigations into data inconsistencies, identifying root causes and implementing corrective actions.
- Accountable for ensuring data quality and integrity across all reporting and analysis processes.
- Improved decision-making processes with accurate data analysis and visualization techniques.
- Integrated multiple sources of data into cohesive datasets using ETL processes, improving overall analytic capabilities.
- Provided technical support for troubleshooting analytics and reporting issues.
- Generated ad-hoc reports to evaluate specific business requirements.
- Generated standard and custom reports to provide insights into business performance.
Data Platform Support Analyst
Montego Pet Nutrition
12.2023 - 08.2024
- Conducted regular data quality audits, identifying inconsistencies and implementing corrective actions to ensure data accuracy and reliability.
- Optimized database performance by monitoring system health and applying tuning recommendations, enhancing efficiency.
- Developed detailed documentation on database architecture, streamlining future upgrades and simplifying maintenance tasks.
- Ensured data integrity and consistency across systems through effective data synchronization techniques.
- Assisted in the development of internal tools to streamline workflows, improving overall team productivity and operational efficiency.
- Delivered high-quality documentation including technical specifications, user guides, troubleshooting procedures, and best practices for solution utilization.
- Managed incoming data analytics requests, efficiently distributing results to stakeholders to support decision-making.
- Collaborated on ETL processes, ensuring data integrity and verifying pipeline stability.
- Supported ad hoc data requests from end-users, delivering accurate datasets in a timely manner.
- Implemented proactive monitoring solutions for ETL processes, identifying potential bottlenecks and addressing them before they impacted operations.
- Resolved production issues quickly, minimizing downtime and ensuring high levels of user satisfaction.
- Created an end-to-end pipeline solution on Azure using Synapse Analytics to transfer data from a SharePoint site to a Data Lake table, ensuring seamless data flow and storage optimization.
Intern: Data and Analytics
Clickatell
02.2023 - 12.2023
- Developed and optimized in-application SQL queries to extract and analyze data from multiple sources, improving reporting efficiency.
- Collaborated with system architects and design analysts to gather and refine business requirements, driving project design and implementation.
- Led requirements gathering and project design, ensuring alignment with business objectives and overseeing successful project delivery.
- Applied advanced problem-solving techniques to identify and resolve operational issues, optimizing business processes.
- Analyzed large datasets (including chat, backlog, and operations data) to provide actionable insights for customer service improvements.
- Created and presented customized reports with data visualizations to enhance stakeholder decision-making.
- Developed and updated SQL scripts to automate data extraction, enhancing reporting accuracy and efficiency.
- Documented analysis results and provided performance feedback, contributing to continuous improvement.
- Collaborated with senior Data Engineers on ETL processes, ensuring data integrity and pipeline stability.
- Cleaned and processed data to ensure proper handling and quality for analysis.
- Diagnosed and resolved data pipeline issues, ensuring continuous data flow and integrity.
- Collaborated with seniors on configuring ETL pipelines for data ingestion into data lakes, optimizing data transfer and processing efficiency.
- Developed and maintained comprehensive documentation for data processes, APIs, and data sharing protocols.
- Collaborated with seniors on implementing secure data export pipelines via SFTP and AWS S3, improving external data exchange.
- Collaborated with business intelligence teams to create interactive dashboards and visualizations for enhanced data insights.
- Designed a SharePoint landing page for easy access to data resources, improving usability and team productivity.
Online Shopping Assistant
Mr D Food
11.2021 - 01.2023
- Delivered exceptional customer service by resolving inquiries efficiently, achieving a 98% satisfaction rate.
- Improved daily operations through proactive problem-solving and effective coordination.
- Ensured accurate order processing and timely resolution of discrepancies to maintain operational efficiency.
Administrative Aide
Mbangomuni Cleaning Services
7 2019 - 11.2020
- Streamlined document organization by implementing an efficient record filing system, enhancing accessibility.
- Managed incoming communications, including calls and mail, ensuring timely delivery to appropriate recipients.
- Edited and maintained company documents to improve accuracy, readability, and alignment with organizational goals.
Mentor
Silene PSO
10.2018 - 09.2019
- Guided first-year students in adjusting to university life, offering support on academic and personal challenges.
- Conducted group sessions to teach organizational, time management, and study skills, fostering academic success.
- Encouraged wellness and career exploration through workshops and individual mentoring.
Education
Bachelor of Science - Biology, Psychology & BioInformatics
University of Stellenbosch
02.2018 - 12.2022
Certificate - Data Analysis
University of Cape Town
04.2022 - 06.2022
MicroMasters® Data, Economics, Design of Policy
Massachusetts Institute of Technology (MITx)
Skills
Programming: SQL (PostgreSQL, MySQL, T-SQL, Sybase IQ) , Python programming, R programming
Core Competencies
- ETL Pipeline Development & Data Integration
- Business Intelligence & Dashboard Design
- Data Analysis & Statistical Modeling
- SQL (PostgreSQL, MySQL, T-SQL)
- Python & PySpark Programming (Microsoft Fabric)
- Cloud Technologies (AWS S3, Redshift, Athena, Azure, Blob storage)
- Data Visualization (Power BI, Tableau)
- Stakeholder Engagement & Requirements Gathering
Certification
Business Intelligence Analyst – SQL, Python & Tableau (Udemy)
Timeline
Apache Superset for Data Engineers, Udemy
04-2025
QA Data Analyst
RedPanda Software
01.2025 - Current
Business Intelligence Analyst – SQL, Python & Tableau (Udemy)
10-2024
DP 900: Microsoft Certified, Azure Data Fundamentals
06-2024
Data Platform Support Analyst
Montego Pet Nutrition
12.2023 - 08.2024
Intern: Data and Analytics
Clickatell
02.2023 - 12.2023
Certificate - Data Analysis
University of Cape Town
04.2022 - 06.2022
Online Shopping Assistant
Mr D Food
11.2021 - 01.2023
Mentor
Silene PSO
10.2018 - 09.2019
Bachelor of Science - Biology, Psychology & BioInformatics
University of Stellenbosch
02.2018 - 12.2022
Administrative Aide
Mbangomuni Cleaning Services
7 2019 - 11.2020
MicroMasters® Data, Economics, Design of Policy
Massachusetts Institute of Technology (MITx)
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