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Nolusindiso Ntwana

@nolusindisontwana

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Data analyst and data scientist driving actionable insights and revenue optimisation.

South Africa

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What I'm looking for

I seek roles where I can apply advanced modeling and data science to optimise revenue and operations, work with cross-functional teams, and build automated decision-support tools for measurable impact.

I am a results-driven Data Analyst and Data Scientist with over seven years of experience applying mathematical and statistical modeling, machine learning techniques, and process optimisation to deliver measurable business impact.

I have built and deployed revenue optimisation and scenario models that aligned with large revenue targets and improved capacity utilisation, and I automated decision-support tools that accelerated forecasting and allocation decisions.

My work spans revenue assurance, churn reduction, large-scale forecasting, and research-based predictive modeling, including projects that produced multi-million-rand savings and informed operational planning in transport and healthcare.

I teach postgraduate operations research, hold an MSc in Industrial Engineering, and am proficient in Python, R, SQL, PowerBI and related data tools — I bring a pragmatic, stakeholder-focused approach to turning data into reliable decisions.

Experience

Work history, roles, and key accomplishments

Current

Commercial Business Analyst

Current

Travelopia Holdings

Oct 2024 - Present (1 year)

Built and deployed an intelligent revenue optimisation model aligning supply and demand to an £850m revenue target, improved margin management (45.89% target) and tracked a £11m weekly revenue stream via PowerBI dashboards.

Power BI Python Scenario Modeling Financial Analysis Forecasting Process Automation

Current

Post Graduate Lecturer

Current

University of the Witwatersrand

Jan 2021 - Present (4 years 9 months)

Lectured operations research methods to 45 postgraduate students, emphasizing real-world applications and optimization techniques.

Operations Research Teaching Curriculum Development Mathematical Modeling

Revenue Assurance Analyst

Tracker Connect (Pty) Ltd

Jul 2023 - Jul 2024 (1 year)

Reduced churn-related revenue loss by 10% through customer behavior models, ensured R300k daily sales reporting alignment for 1,300 contracts and allocated R3.1m monthly unallocated sales to correct accounts.

Revenue Assurance Churn Modeling SQL Data Analysis Sales Reporting Risk Assessment

Data Scientist

North West University

Apr 2023 - Jun 2023 (2 months)

Built predictive models to optimize nurse-to-patient ratios using survey data from 4,200 nurses, identifying a 30% decline in outcomes when staffing dropped below two registered nurses per shift.

Data Cleaning R Python Statistical Analysis Survey Analysis Outcome Prediction

Modeling and Simulation Associate

Transnet Centre of Systems Engineering

Jan 2018 - Mar 2023 (5 years 2 months)

Developed mathematical and simulation models that improved Transnet Natal Corridor efficiency, delivering approximately R210m in combined cost and infrastructure savings and a 15% business performance improvement.