Bernard Joshua Raja Rajan Email & Phone Number

Klang, My

Klang, My

Kuala Lumpur, Federal Territory Of Kuala Lumpur, Malaysia

Developed and Deployed Dashboards: Designed automated dashboards to monitor abnormal purchasing patterns and detect fraudulent users across six countries, enhancing data visualization and decision-making.ETL Processes: Utilized ETL processes for real-time data extraction, transformation, and loading (ETL) from multiple sources, optimizing fraud detection.Statistical Analysis and Risk Segmentation: Executed data analytics projects using statistical analysis to establish purchase limitation thresholds, successfully reducing risky bulk purchases and achieving a 1% to 2% block rate of total orders while aligning with business objectives.Developed a buyer risk segmentation model from historical transaction data, enhancing marketplace integrity and reducing wrongly flagged buyers by 80%, while increasing fraud detection by 90%.Machine Learning Techniques: Leveraged machine learning and customer segmentation to analyze historical data, identifying resellers based on login and purchasing behavior across six countries, resulting in a 20% to 30% detection rate for fraudulent accounts.SOP Refinement and Dispute Resolution:Collaborated with commercial teams to develop SOPs for whitelisting legitimate business partners, enabling bulk purchases for resale on partner platforms, reducing disruptions by 70%.Employed data analysis to resolve fraud disputes in partnership with Customer Care and legal teams, minimizing disputes and improving operational efficiency by 80%.

Malaysia

* Specialized in combating diverse types of fraud within the Singapore market, including fraudulent orders, incentive abuse, and payment fraud, demonstrating expertise in localized risk mitigation strategies, using data analytics and statistical modelling.* Designed and deployed tailored SOPs specifically for Singaporean risk management operations, enhancing operational efficiency and precision.* Designed and deployed daily-updated data warehouses and data stores, leveraging optimal database technologies and schema designs. These solutions were seamlessly integrated for efficient storage of analytical information, ensuring scalability, high performance, and near-real-time insights. Regular maintenance and optimization kept the systems accurate and timely, empowering stakeholders with actionable intelligence to drive strategic decisions and operational enhancements.* Developed and maintained interactive dashboards for continuous monitoring and rigorous assessment of risks related to return-refund fraud, enabling proactive detection and response to potential threats.* Directed complex fraud investigations, performed in-depth KYC (Know Your Customer) checks on platform users and sellers, and successfully resolved high-profile fraud cases.

Federal Territory Of Kuala Lumpur, Malaysia

Bachelor Of Computer Science, Data Science, Cgpa: 3.81 ( Final )

Activities and Societies: Swinburne Emerging Leader Program

Australian Matriculation ( Ausmat ), Business/Commerce, General, Distinction ( 77.7 %)

Activities and Societies: AUSMAT Student Union