# Lead Data Scientist

**Company**: Grab
**Location**: Bangalore, India
**Experience**: senior
**Job type**: full-time
**Category**: Data Science
**Industry**: Finance

**Apply**: https://jobs.smartrecruiters.com/Grab/744000159596270-lead-data-scientist?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_32d9a3eb-80a

## Description

We are looking for an experienced credit risk modeller to lead the development of Expected Credit Loss (ECL) models for our Retail and MSME portfolios.

Key Responsibilities:

- Lead the end-to-end development and enhancement of IFRS 9 ECL models across Retail and MSME portfolios.

- Develop 12-month and lifetime Probability of Default (PD) models, including term structures, point-in-time calibration, and incorporation of forward-looking macroeconomic information.

- Develop Loss Given Default (LGD) models covering recovery patterns, cure behaviour, workout periods, collateral, costs, and discounting.

- Develop Exposure at Default (EAD) and credit conversion factor models for term loans and revolving credit facilities.

- Design and enhance ECL methodologies covering portfolio segmentation, default definitions, increase in credit risk, staging, and multiple economic scenarios.

- Develop application, behavioural, and collection scorecards using traditional statistical methods and machine-learning techniques.

- Perform model calibration, back-testing, benchmarking, sensitivity analysis, stress testing, and ongoing performance monitoring.

- Translate modelling methodologies into modular and reproducible Python implementations.

- Build reliable analytical datasets and model pipelines using Python and SQL, working with Data Engineering and Technology teams.

- Produce comprehensive model documentation and support independent validation, audit, governance committees, and regulatory reviews.

- Partner with Credit Risk, Finance, and Business teams to explain ECL movements, portfolio trends, and financial impact of model changes.

- Contribute to the Bank's broader credit risk modelling, portfolio optimisation, and capital-management frameworks.

- Provide technical guidance and mentorship to other modellers and analysts.

QUALIFICATIONS:

- At least eight years of relevant experience in credit risk modelling, quantitative risk, data science, or advanced credit analytics within banking, financial services, or consulting.

- Hands-on experience developing IFRS 9 ECL models, with demonstrated expertise in PD and practical experience across LGD and EAD modelling.

- Experience with ECL concepts, including 12-month and lifetime expected losses, staging, significant increase in credit risk, and forward-looking macroeconomic scenarios.

- Experience developing and monitoring credit risk scorecards for Retail, MSME, or similar lending portfolios.

- Advanced proficiency in Python for statistical modelling and data analysis, using libraries such as pandas, NumPy, scikit-learn, and statsmodels.

- Strong SQL experience working with large, complex, and longitudinal credit datasets.

- Knowledge of relevant modelling techniques, including logistic regression, survival analysis, transition matrices, time-series or macroeconomic modelling, and recovery analysis.

- Experience managing the complete model lifecycle, including data preparation, methodology development, implementation, monitoring, documentation, and remediation.

- Sound understanding of model risk governance, validation standards, and regulatory expectations.

- Ability to communicate complex methodologies and modelling results clearly to senior, technical, and non-technical stakeholders.

- Bachelor's or Master's degree in Statistics, Mathematics, Econometrics, Data Science, Computer Science, Engineering, Finance, or another quantitative discipline.

Good to Have:

- Experience with Basel credit risk models, IRB models, stress testing, or capital modelling.

- Experience deploying models into production and working with Git, automated testing, CI/CD, or model-monitoring frameworks.

- Familiarity with AWS services and cloud-based data or modelling platforms.

- Experience in digital banking, fintech, or portfolios with limited historical data.

- Professional qualifications such as FRM, CFA, Chartered Banker, or an equivalent risk qualification.

ADDITIONAL INFORMATION: Life at Grab We care about your well-being at Grab, here are some of the global benefits we offer:

- We have your back with Term Life Insurance and comprehensive Medical Insurance.

- With GrabFlex, create a benefits package that suits your needs and aspirations.

- Celebrate moments that matter in life with loved ones through Parental and Birthday leave, and give back to your communities through Love-all-Serve-all (LASA) volunteering leave.

- We have a confidential Grabber Assistance Programme to guide and uplift you and your loved ones through life's challenges.

## Skills

### Required
- Python
- SQL
- credit risk modelling
- data science
- statistics
- machine learning
- data analysis
- pandas
- NumPy
- scikit-learn
- statsmodels
- logistic regression
- survival analysis
- transition matrices
- time-series modelling
- macroeconomic modelling
- recovery analysis

### Nice to have
- Basel credit risk models
- IRB models
- stress testing
- capital modelling
- Git
- automated testing
- CI/CD
- model-monitoring frameworks
- AWS services
- cloud-based data or modelling platforms
- digital banking
- fintech
- FRM
- CFA
- Chartered Banker

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