Denise Lancaster
@deniselancaster
Data Analyst turning business data into insights with Power BI, Python, SQL, and SAS.
What I'm looking for
I’m a data specialist who thoroughly enjoys the logic behind solving problems with data—especially when it involves coding. I love the challenge of data science in the data prep stages, and I’m motivated by using statistics to help guide business decisions.
As a Data Analyst at Afgri Group Holdings, I contributed significantly to the main Power BI business report used by Exco, taking ownership of a critical deliverable. I built a strong understanding of a complex data structure and applied advanced Power BI skills to deliver clear, comprehensive reporting on business operations.
Previously, as a Data Scientist at Telesure Investment Holdings, I worked across Collections, Retentions, Sales, Marketing, and Claims. I supported a Python API for Claims using Flask and Scikit-learn, built and maintained a quarterly internal churn report with SAS and Power BI, and automated/scheduled time-sensitive data provisioning with SAS and Python—saving significant time and improving data integrity.
I’ve also supported strong data governance through an external partner data solution using SAS and Excel (with MS Azure/Synapse) and mentored an NWU Master’s student through their final project. I bring a quantitative foundation (BSC. Quantitative Risk Analysis (Hons.) and BSC. Actuarial Science) and was recognized as a Telesure quarterly “Unlock Award” 2025 runner-up for being resourceful, productive, and exemplary.
Experience
Work history, roles, and key accomplishments
Data Analyst
Afgri Group Holdings
Apr 2026 - Present (4 months)
Contributed to the restructuring of the Executive Customer Report and developed a comprehensive Power BI business report used by Exco to overview operations. Assumed responsibility for the deliverable by building understanding of a complex data structure and applying advanced Power BI skills.
Data Scientist
Telesure Investment Holdings
Oct 2023 - Mar 2026 (2 years 5 months)
Worked across collections, retentions, sales, marketing, and claims, including assisting with a claims-processing Python API using Flask and Scikit-learn. Built data governance and automation using SAS and Python (including scheduled delivery of time-sensitive data), maintained an internal churn report, and mentored a NWU Master’s student.
Junior Data Scientist
Telesure Investment Holdings
Feb 2022 - Sep 2023 (1 year 7 months)
Developed a collections propensity model in SAS and implemented an error identification system to automate and schedule a daily collections process. Reduced time spent on queries by saving approximately 2–4 hours per day for the data team.
Education
Degrees, certifications, and relevant coursework
North-West University (NWU)
Bachelor of Science (Honours), Quantitative Risk Analysis
Completed a BSc (Honours) in Quantitative Risk Analysis at NWU, graduating in 2021.
North-West University (NWU)
Bachelor of Science (BSc), Actuarial Science
Completed a BSc in Actuarial Science at NWU, graduating in 2020.
University of Pretoria
BChD
Completed a BChD degree at the University of Pretoria in 2012.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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