ML Engineer - Retail Decisioning

> CP Axtra

• Nawamin Road, Thailand
• Full-time

Workplace: on_site

Department: Technology

Description

The ML Engineer builds the classical retail-ML cores that power the highest-stakes agents on an AI-native retail decisioning platform - demand forecasting that must beat a legacy system, replenishment and allocation models, causal-insight models for executive narratives, and pricing / promotion / markdown / assortment models. The role consumes the enterprise MLOps platform (model registry, drift detection, feature store, library wrappers) and contributes use-case-specific implementations.

Remote candidates outside of Thailand are welcome to apply.

Key Responsibilities:

• Build, train, evaluate, and deploy classical retail ML models - forecasting, replenishment, allocation, causal inference (DoWhy / EconML), pricing elasticity, promotion lift, markdown optimisation, assortment.

• Use company-curated classical ML wrappers (Prophet, statsmodels, DoWhy / EconML, LightFM, scikit-learn, XGBoost, LightGBM) - do not rebuild open-source libraries from scratch.

• Author per-model evaluation methodology appropriate to each model class (forecast MAPE, classification accuracy / precision / recall, causal precision).

• Register every model in the enterprise Model Registry with model cards; configure drift-detection thresholds; use the enterprise Feature Store for shared features.

• Beat a legacy forecasting system by a measurable margin (MAPE improvement) and document evidence for trust-gate progression alongside the legacy run.

• Build causal models for executive-insight agents using DoWhy or EconML; document causal assumptions; ensure mandatory citations for narrative outputs.

• Partner with AI Engineers on ML model ↔ agent integration (invocation contracts, latency budgets, fallback behaviour); co-design HITL gate criteria for ML-heavy agents.

• Partner with Suite Product Owners on BU adoption, gate criteria, success metrics; document per-model business value (forecast accuracy
• inventory savings, replen accuracy
• stock-out reduction).

Requirements

• Bachelor's or Master's degree in Computer Science, Statistics, Applied Mathematics, or a related discipline.

• 5+ years building production ML systems with retail or commercial decisioning models (forecasting, replenishment, pricing, recommendation, or comparable).

• Strong Python and Spark / PySpark; SQL fluency.

• MLOps consumer experience - has registered models, configured drift, used a feature store.

• Cloud + Databricks (or equivalent lakehouse) production experience; Azure preferred.

• Causal inference exposure (DoWhy / EconML).

• Eval discipline - knows how to design appropriate evals per model class.

• Retail / commerce domain fluency or rapid acquisition.

Preferred

Qualifications

• Retail forecasting at multi-store / multi-SKU scale; promotional lift / markdown optimisation in production.

• Causal inference in commercial decisioning; replenishment / allocation algorithms.

• Online learning / near-real-time inference.

• Vendor certifications such as Databricks Machine Learning Professional or Azure AI Engineer Associate

Apply

[Apply at CP Axtra](https://apply.workable.com/joinmakropro/j/D0BCDFFF49/apply)