EWS-Data Scientist

Bahwan CyberTek is hiring a EWS-Data Scientist in Mumbai, Chennai, Bengaluru, India. The details below summarise the employer's own listing; applications happen on the original posting, not on GetFirstJob.

What the work involves

• Design, build, and document Early Warning System (EWS) / behavioral scorecards (retail and corporate/wholesale) using machine learning techniques such as XGBoost, logistic regression, and random forest
• Perform end-to-end model development: sample design, target definition (e.g
• SMA/NPA flagging), feature selection and hypothesis documentation, hyperparameter tuning (e.g
• Optuna), cross-validation (k-fold/OOF), and threshold optimization
• Conduct independent model validation and technical review of vendor-built or in-house models -- including checking implementation code against validation reports, verifying variable weights/coefficients, and identifying documentation or governance gaps
• Monitor live/production scorecards through Out-of-Time (OOT) validation, tracking discriminatory power (Gini, AUROC), score stability, and population drift
• flag and investigate anomalies (e.g
• OOT Gini exceeding development Gini)
• Prepare Model Validation Documents, Variable Hypothesis reports, and governance checklists in line with AI/ML Model Risk Management (MRM) frameworks
• Prepare Model Monitoring reports on a quarterly basis

What they are looking for

• Required Skills & Experience
• Proficiency in Python or SAS for model development and data analysis (Python preferred
• Hands-on experience in credit risk analytics, specifically scorecard modelling (behavioral/EWS), model validation, and ongoing portfolio monitoring
• Working knowledge of SQL for data extraction and variable sourcing from banking systems
• Experience preparing formal model documentation -- validation reports, variable hypothesis documents, governance/AI-ML checklists -- suitable for regulatory/MRM review
• Ability to independently audit a model's implementation (code) against its stated methodology and flag discrepancies
• Strong written and verbal communication skills for stakeholder presentations and technical write-ups
• Experience working directly with bank Risk, Collections, and IT teams in a consulting capacity

Pay and dates

The listed pay is Not Disclosed. The source page shows a relative posting age rather than an exact posting date; this role was first seen and checked as open on 4 November 2026. The source page showed it as posted “1 week ago” when captured; that is a relative stamp, not an exact date.

How to apply

Apply on the listing where the employer published this role: EWS-Data Scientist at Bahwan CyberTek. We found this listing via naukri.com; it was still open when we checked on 4 November 2026. If the posting has closed or the link fails, the role may have been filled.