American Express, Sept 2022 to Present
Manager, Analytics & Data Ops
- Developed and implemented machine learning models (e.g., K-Means for segmentation, Random Forest for attrition) to drive targeted marketing campaigns, resulting in increased spending and improved customer retention.
- Optimize machine learning model accuracy and stability through techniques such as feature selection, cross-validation, and hyperparameter tuning.
- Conduct A/B tests on campaign variants and effectiveness, and provide insights and recommendations to stakeholders through visual reports using Excel charts and Python.
- Build fully automated data pipelines using Python, SQL, and scheduled Cron jobs, reducing manual workload by 25% and increasing team productivity.
- Collaborate with cross-functional teams (Data Science, Marketing, Operations, Finance) on different projects to identify process gaps and deliver analytics solutions to improve operational efficiency.
- Design and maintain dashboards to monitor key metrics for the management team.
- Extract and synthesize complex data to support business objectives and ensure timely fulfillment of MIS data requests within SLAs.
- Facilitate weekly team syncs to align priorities, share analytics wins, and foster a collaborative, continuous-learning culture with peer recognition.
Nikko Asset Management, Oct 2018 to Sep 2022
AVP, Performance & Data Analyst
- Co-led the development of new data processing engines and databases, significantly improving processing speed and efficiency, resulting in annual savings of approximately S$50K.
- Designed and automated ETL workflows using MS SQL, MS Access, and Excel VBA, streamlining data ingestion and transformation from multiple sources.
- Replaced manual reporting processes with SQL and VBA-based automation, reducing errors and turnaround time, and increasing productivity by approximately 80%.
- Built and maintained investment performance databases, ensuring data accuracy through robust validation checks and early error detection templates.
- Generated and reconciled investment performance reports using top-down and bottom-up methodologies across multi-asset portfolios.
- Delivered timely and accurate performance reporting, supporting portfolio measurement and stakeholder decision-making.
Virtusa, Oct 2017 to Oct 2018
Associate Consultant
- Cleaned, integrated, and stored large datasets from diverse sources to identify trends and generate actionable insights.
- Developed interactive dashboards focused on key performance metrics, enabling data-driven decisions and strategic planning by management.
- Collaborated with global stakeholders to gather requirements, design analytical solutions, and automate manual processes, improving overall operational efficiency.