Senior Data Scientist - Card Portfolio Growth & Analytics

PERSOL Workforce Solutions Malaysia Sdn Bhd; Kuala Lumpur; Hybrid; MYR 180,000 - 280,000; Full time

Job summary

PERSOL Workforce Solutions Malaysia Sdn Bhd is seeking an experienced Senior Data Scientist to lead analytics workstreams for card portfolio optimization across acquisition, activation, usage, retention, and risk areas. You will build and deploy ML models, conduct lifecycle and segmentation analyses, and design test-and-learn frameworks to drive business strategy.

You will analyze large-scale datasets, create predictive data sets, and develop dashboards to inform executives and clients.

Qualifications

• Master’s degree or higher in Data Science, Statistics, Computer Science, Mathematics, or a related quantitative field.
• 5–8+ years of experience in data science or advanced analytics, preferably within financial services or retail banking.
• Demonstrated experience in credit card portfolio analytics, customer lifecycle modelling, or marketing optimization.
• Advanced skills in analytics and statistical modeling (e.g., Regression, Clustering, Classification).
• Experience working with large datasets using SQL, Hive, Hadoop, Spark, Python or cloud-based analytics environments for data manipulation and analysis.
• Solid grounding in statistical inference, experimental design, causal inference, and time-series analysis.
• Hands‑on experience with supervised and unsupervised machine learning techniques.
• Exposure to fraud, credit risk, authorization, or payment success optimization.
• Experience translating analytics into business strategy and client recommendations.
• Strong communication skills with the ability to engage non‑technical stakeholders.
• Experience in consulting or client‑facing analytics roles.

Responsibilities

• Own analytics workstreams for card portfolio optimization across acquisition, activation, usage, retention, payment success, fraud, and credit risk
• Build and deploy statistical models and machine learning solutions to identify growth, efficiency, and risk-mitigation opportunities
• Conduct customer segmentation, lifecycle modelling, propensity modelling, and uplift analysis to inform portfolio strategies
• Design and evaluate test-and-learn frameworks, including control groups, A/B testing, and causal inference approaches
• Analyze large-scale transaction, customer, and behavioral datasets to generate insights
• Produce data sets for predictive modeling by parsing and aggregating incomplete, unstructured data sources
• Enhance and optimize codes for critical business processes
• Design and develop dashboards using Tableau or Power BI
• Translate complex analytical findings into clear, actionable recommendations for business and client stakeholders
• Identify opportunities to automate repeatable analysis or build streamlined solutions
• Lead transfer of technical knowledge to facilitate business solution implementation
• Document all projects, including coding and other necessary documentation
• Partner closely with Product, Marketing, Risk, Fraud, and Technology teams to operationalize analytics-driven strategies
• Support executive-level storytelling through insightful presentations, dashboards, and performance tracking
• Contribute to capability building by documenting methodologies, best practices, and reusable analytical assets

Skills

Statistical modeling

Machine learning

Data storytelling

Communication

Time-series analysis

Causal inference

Education

Master’s degree or higher in Data Science/Statistics/CS/Math

Tools

SQL

Hive

Hadoop

Spark

Python

Cloud analytics

Job description

PERSOL Workforce Solutions Malaysia Sdn Bhd is seeking an experienced Senior Data Scientist to lead analytics workstreams for card portfolio optimization across acquisition, activation, usage, retention, and risk areas. You will build and deploy ML models, conduct lifecycle and segmentation analyses, and design test-and-learn frameworks to drive business strategy.

You will analyze large-scale datasets, create predictive data sets, and develop dashboards to inform executives and clients.