Justin Ng
Senior Machine Learning Engineer at MaxMind- Claim this Profile
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Bio
Experience
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MaxMind
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United States
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Internet Publishing
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1 - 100 Employee
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Senior Machine Learning Engineer
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Jan 2022 - Present
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Pepperdata
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United States
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Software Development
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1 - 100 Employee
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Lead Data Scientist
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Nov 2018 - Jan 2022
Lead data science projects to provide AI-empowered cloud management products for customers. Designed and built multiple machine learning embedded reports that assist customers in making smarter resource management decisions. This largely enhanced Pepperdata’s competitiveness in the big data industry. Develop models to allow automatic optimization of computing resources for the customers. Different techniques were researched, including reinforcement learning, and time series analysis. Created executive decision dashboards of ~200 Hadoop customer clusters utilizing techniques such as anomaly detection, cost-benefit analysis. Prepared and presented tutorials on various topics, including time series, reinforcement learning, Spark applications. Show less
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Great Learning
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India
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E-Learning Providers
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700 & Above Employee
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Mentor
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Sep 2020 - Feb 2021
Leading tutorials for professionals on the course Artificial Intelligence & Machine Learning. The program is offered in partnership with the University of Texas at Austin. Leading tutorials for professionals on the course Artificial Intelligence & Machine Learning. The program is offered in partnership with the University of Texas at Austin.
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RBC Capital Markets
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Canada
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Investment Banking
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700 & Above Employee
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Data Scientist
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Apr 2018 - Oct 2018
Built machine learning products to boost sales performance in the fixed income markets. Developed a recommendation system for increasing sales efficiency for fixed income securities. - Tested various recommendation techniques (collaborative and content filtering, clustering, etc.) on fixed income transactions. Attained a 2X lift over the existing system. - Designed workflow pipeline for use in production. Created interactive dashboards in Python that intuitively illustrates insightful customer behaviours. Conducted exploratory analysis on transaction data and shared findings by writing internal research reports. Show less
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Capital One
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United States
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Financial Services
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700 & Above Employee
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Senior Data Scientist
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Nov 2016 - Nov 2017
Optimized application credit policies by utilizing advanced analytics. Developed a model to predict future customer charge-off rates. - Created programs to engineer thousands of features on multi-core processors. - Utilized different types of machine learning models and presented the solution to senior management. Provided in-depth analyses on key assumptions for customer valuations models. - Extensively cleansed, transformed and validated customer data from multiple sources. - Analyzed multiple revenue and risk models by comparing model findings to actual results. Suggested changes to increase the effectiveness of legacy customer valuations process. - Worked with the model validation team to implement the new model. Created an ETL batch process that runs daily on Amazon Web Services which efficiently processes customer data comprising of thousands of variables. Built highly interactive Tableau dashboards to monitor the performance of the models. Show less
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TD
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Canada
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Banking
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700 & Above Employee
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Senior Analyst - AML Analytics
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Aug 2015 - Nov 2016
Analyzed customer data to improve the quality and effectiveness of the anti-money laundering (AML) analytics program. Led team to create predictive models in order to auto-close alerts. This initiative significantly streamlined the workload of the operations team. - Explored and extracted a large amount of customer data from different sources into a single master database for further analytics usage. - Researched, tested and used machine learning algorithms on customers profiles and transactions data. Techniques include logistic regression, XGBoost, random forest, piece-wise regression, etc. - Developed web scrapers to extract data from online sources for use in predictive models. - Gave tutorials on Python, Neural Networks, and Apache Spark. Researched new statistical techniques to improve current scenario tuning methodologies. - Recommended and implemented numerical techniques for choosing optimal sample sizes to review. - Helped devise a method for setting multiple parameters at once. Streamlined the team's software programs, which improved usability, efficiency and accuracy of statistical analyses. Show less
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Bell
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Canada
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Telecommunications
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700 & Above Employee
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Marketing Analytics Specialist
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Aug 2013 - Aug 2015
Consulted on data driven decision making for marketing projects within the small business division, resulting in greatly enhanced tracking and superior campaign outcomes. Supported the door to door sales campaign. Helped increase average weekly sales by 206% in 2014. - Developed weekly dashboards for the door to door channel to communicate KPI trends to executives. - Increased sales of the door to door channel by identifying high potential areas for sales agents. - Built a user-friendly tool that visualized and efficiently extracted business information from a map. Conducted multiple analytics projects that provide valuable insights about the business. - Forecasted voice line adds for planning purposes. - Predicted telecom spending of potential customers. - Constructed Twitter customer sentiment model. Significantly increased efficiency within the team by automating data collection and reports generation processes. Show less
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Education
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York University
Master of Arts (M.A.), Statistics -
University of Toronto
Bachelor of Applied Science (B.A.Sc.), Computer Engineering