Wee Kiat Ong

Experience

• 

  Y Ventures Group

  May 2017 - Jul 2017

  Data Analyst Intern

  Data Analysis and Automation• Created VBA programs to perform automated web-scraping of online marketplace data to identify potentially marketable products, saving 150 man-hours annually.• Performed demand forecasting using Time Series Analysis to identify trends and seasonality, enabling company to identify market opportunities.• Monitored the performance and efficacy of advertising efforts to improve visibility of the company’s product in Google Ads.

• 

  Singapore Department of Statistics (DOS)

  Jun 2018 - Feb 2021

  Statistician

  Data Management and Demographic Statistics• Experienced in using SAS and SQL to efficiently process large volumes (millions) of demographic data to ensure timely, high quality database updates essential to the compilation of national population statistics.• Performed regular reviews to identify and explain data anomalies, and determine their impact on resulting analysis across various demographic aspects.• Provided data and statistical advice on population estimates and mortality rates to government agencies. Ensured the data and advice provided are relevant by first understanding their intentions in acquiring such data.• Developed and accessed new demographic indicators by merging and reconciling data from multiple sources, enabling DOS to support a wider range of data requests.Data Science• Project on natural language processing automated the classification of free-text data into Singapore Standard Classifications.• Implemented various machine learning techniques, such as Random Forest and XGBoost, achieving 90% prediction accuracy which helped to improve operational efficiency by saving man-hours in manual classification.• Well-versed in data science modelling steps, including text pre-processing techniques, training, cross-validation and test models, as well as evaluation of model iterations.• Automated the machine learning process to rapidly optimise model parameters, so best model can be achieved more efficiently through reduced manual coding.Operational Efficiency• Created R modules that enabled more efficient and streamlined constructions of life tables and mortality projections, reducing compilation time by 70%. Show less

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  Immigration & Checkpoints Authority (ICA)

  Feb 2021 - now

  • Senior Lead Analyst

    Apr 2025 - now

  • Lead Analyst

    Jun 2024 - Apr 2025

  • Data Analyst

    Feb 2021 - Jun 2024