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I'm a Data Analyst with over five years of experience in data science and reporting. I specialize in SQL, Python, R, Tableau, and PySpark, and I love turning complex data into clear, actionable insights that drive decision-making. I excel at building dashboards, performing ad-hoc analyses, and communicating findings in a storytelling-friendly way. I’m committed to data accuracy and user-friendly experiences that empower teams across functions.…I'm a Data Analyst with over five years of experience in data science and reporting. I specialize in SQL, Python, R, Tableau, and PySpark, and I love turning complex data into clear, actionable insights that drive decision-making. I excel at building dashboards, performing ad-hoc analyses, and communicating findings in a storytelling-friendly way. I’m committed to data accuracy and user-friendly experiences that empower teams across functions.

Malki Wijesinghe

Data Scientist, Data Analyst, Data Visualizer

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I'm a Data Analyst with over five years of experience in data science and reporting. I specialize in SQL, Python, R, Tableau, and PySpark, and I love turning complex data into clear, actionable insights that drive decision-making. I excel at building dashboards, performing ad-hoc analyses, and communicating findings in a storytelling-friendly way. I’m committed to data accuracy and user-friendly experiences that empower teams across functions.…I'm a Data Analyst with over five years of experience in data science and reporting. I specialize in SQL, Python, R, Tableau, and PySpark, and I love turning complex data into clear, actionable insights that drive decision-making. I excel at building dashboards, performing ad-hoc analyses, and communicating findings in a storytelling-friendly way. I’m committed to data accuracy and user-friendly experiences that empower teams across functions.

Available to hire

I’m a Data Analyst with over five years of experience in data science and reporting. I specialize in SQL, Python, R, Tableau, and PySpark, and I love turning complex data into clear, actionable insights that drive decision-making.

I excel at building dashboards, performing ad-hoc analyses, and communicating findings in a storytelling-friendly way. I’m committed to data accuracy and user-friendly experiences that empower teams across functions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Sinhala, Sinhalese

Fluent

Work Experience

Data Analyst (Data Science & Engineering) at Axiata Digital Analytics Singapore PTE LTD

January 1, 2023 - January 1, 2023

Led end-to-end ETL development and analytics across multi-source customer data, building automated workflows with SQL, Python, and Spark to ensure data quality and accessibility for analytics. Trained and tuned machine learning models for customer behavior prediction and churn analysis, improving targeting accuracy and retention. Automated recurring dashboard reports across eight countries, saving hundreds of hours annually and enhancing reporting timeliness. Designed and maintained interactive Tableau dashboards for senior executives, translating insights into strategic actions. Authored AWS setup guidelines and mentored 10+ analysts to ensure consistent data management.

Research Assistant at Morin Lab, Simon Fraser University, Canada

January 1, 2025 - January 1, 2025

Developed a multi-omics deep learning model to classify nine genetic subtypes of B-cell lymphoma using high-dimensional genomic data. Engineered features and optimized models (UMAP, Autoencoder, Random Forest, XGBoost, and Neural Networks) to improve classification accuracy and subtype differentiation. Conducted data preprocessing, clustering, and validation to ensure model robustness and interpretability across large biological datasets; utilized R and Git for statistical analysis and reproducible research workflows.

Data Analyst (Data Science & Engineering) at Axiata Digital Analytics Singapore PTE LTD, Sri Lanka

January 1, 2023 - January 1, 2023

Built and automated end-to-end ETL workflows using SQL, Python, PySpark, AWS, Tableau, and Git to integrate multi-source customer data, ensuring data quality and accessibility for analytics and decision-making. Trained and tuned machine learning models for customer behavior prediction and churn analysis using Python. Automated five recurring dashboard reports across eight countries, saving 576+ hours annually and improving reporting accuracy and timeliness. Developed a statistical rule-based analytical model to automate internal processes, driving a 7x increase in dashboard usage and multiple new data delivery pipelines. Conducted ad-hoc analyses using PySpark for large Telco datasets, and designed Tableau dashboards for senior executives across eight markets. Authored AWS setup guidelines and trained 10+ analysts.

Research Assistant at Morin Lab, Simon Fraser University

January 1, 2025 - January 1, 2025

Developed a multi-omics deep learning model to classify nine genetic subtypes of B-cell lymphoma using high-dimensional genomic data. Engineered features and optimized models (UMAP, Autoencoder, Random Forest, XGBoost, Neural Networks) to improve classification accuracy and subtype differentiation. Conducted data preprocessing, clustering, and validation to ensure robustness and interpretability across large biological datasets. Utilized R and Git for statistical analysis and reproducible research workflows.

Data Analyst (Data Science & Engineering) at Axiata Digital Analytics Singapore PTE LTD

December 31, 2023 - December 31, 2023

Built and automated end-to-end ETL workflows using SQL, Python, PySpark, AWS, Tableau, and Git to integrate multi-source customer data, ensuring data quality and accessibility for analytics. Trained and tuned machine learning models for customer behavior prediction and churn analysis using Python (scikit-learn, pandas, numpy). Developed a statistical rule-based analytical model to automate internal processes, driving a 7× increase in dashboard usage and new data delivery pipelines. Automated five recurring dashboard reports across eight countries, saving 576+ hours annually and improving reporting accuracy and timeliness. Designed and maintained interactive Tableau dashboards visualizing customer journeys, churn, and campaign performance for senior executives across eight markets. Authored AWS setup guidelines and trained 10+ new analysts, ensuring consistent data management standards.

Research Assistant at Morin Lab, Simon Fraser University, Canada

December 31, 2025 - December 31, 2025

Developed a multi-omics deep learning model to classify nine genetic subtypes of B-cell lymphoma using high-dimensional genomic data. Engineered features and optimized models (UMAP, Autoencoder, Random Forest, XGBoost, and Neural Networks) to improve classification accuracy and subtype differentiation. Performed data preprocessing, clustering, and validation to ensure model robustness and interpretability. Utilized R and Git for statistical analysis and reproducible research workflows.