Senior Data Scientist

2 weeks ago

Hanoi, Hanoi, Vietnam 3e2d6cb1-4f84-4e5d-a923-25901ae870be Full time ₫10,000,000 - ₫20,000,000 per year
Top 3 reasons to join us
  • Văn phòng xịn xò, môi trường năng động
  • Được tham gia xây dựng nhiều sản phẩm
  • Công ty F&B siêu to khổng lồ ứng dụng công nghệ
Job description

Responsibilities

1. Customer Analytics & CRM

  • Build and deploy segmentation models (RFM/RFMT, CLV, engagement tiers) for omni-channel retention (dine-in, app, delivery).
  • Design and maintain churn prediction, uplift modeling, and win-back triggers, tracking incremental lift.

2. Personalization & Recommendation

  • Recommend voucher types, products, and timing via contextual bandits, hybrid recommenders, and rule-based systems.
  • Ensure ROI and budget alignment for marketing incentives.

3. Forecasting & Operations

  • Forecast traffic, sales, and ingredient demand at daily/weekly/monthly levels using ARIMA, Prophet, GBDT, or deep learning models.
  • Optimize staff scheduling (shift assignment) under constraints such as skills, peak hours, and labor rules.

4. Experimentation & Causal Inference

  • Design and analyze A/B tests, Difference-in-Differences, and causal ML models (DML, DR-Learner) to evaluate campaign or pricing impact.

5. MLOps & Delivery

  • Deploy models to production (batch/API), manage feature stores, MLflow tracking, and monitor model drift/decay.
  • Collaborate with Data Engineering and Product teams to ensure reliable data pipelines and mart/feature tables.

6. Communication & Business Partnering

  • Translate business problems into ML approaches, articulate trade-offs between accuracy and speed, and communicate insights clearly to non-technical teams.
Your skills and experience
  • Bachelor's degree in a quantitative field (e.g., statistics, economics, mathematics, business administration, marketing).
  • 4+ years of experience as a Data Scientist in B2C, Retail, F&B, or E-commerce environments.
  • Strong in Python (pandas, NumPy, scikit-learn; LightGBM/XGBoost preferred) and SQL (including window functions & optimization).
  • Proven track record in:
  • Machine Learning (classification/regression, feature engineering, model calibration).
  • Forecasting (hierarchical, seasonal, event-based, backtesting).
  • Experimentation (A/B test design, DiD, noise control).
  • Data mining techniques to collect data, analyze and construct solutions for complex business problems.
  • Working knowledge of Git, MLflow, Docker, and dashboard tools (Power BI, Metabase, or Looker).
  • Product-oriented mindset with strong communication and documentation skills.

Nice to have:

  • Recommender systems (matrix factorization, two-tower, contextual bandit).
  • Causal ML (EconML, DoWhy, DR-Learner).
  • Optimization & Operations Research (OR-Tools, Pyomo).
  • Big Data & Orchestration (PySpark, Airflow).
  • API & Deployment (FastAPI, Kubernetes, streaming).
Why you'll love working here
  • 13th and 14th month salary depending on business performance.
  • Working hours: Monday to Friday with flexible check-in time.
  • Opportunities to join professional and technical skill development training programs.
  • Work in Vietnam's leading F&B environment with many exciting technology projects.
  • Empowered to propose creative ideas and process improvements.
  • Enjoy special discounts when using services at Golden Gate restaurant chains.

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