# Lead/ Senior Data Scientist

> Qode · Ha Noi, Vietnam · Full-time · Posted 2026-08-21

**Workplace:** on_site

## Description

****Lead/ Senior Data Scien****tist****

-   ·      **_Work Location:_** 

o  **_Hanoi:_** _TechnoPark Tower, Vinhomes Ocean Park, Hanoi_ 

o **_HCM:_** _Vincom Dong Khoi_

  

**Key Responsibilities:** 

-   ·      Develop and maintain quantitative models to drive user growth efficiency, including segmentation, propensity, and recommendation models for key problems such as retention, activation, conversion, and monetization. 
-   **·**      Design and analyze A/B tests, uplift experiments, and causal inference studies to measure the true impact of marketing campaigns or policy changes. 
-   **·**      Build and train uplift and causal ML models to identify customers with the highest probability of positive response. 
-   **·**      Develop reinforcement learning and contextual bandit models for personalization, adaptive offers, and dynamic channel allocation; research and implement models that optimize long-term objectives such as Customer Lifetime Value (CLV). 
-   **·**      Design and operate optimization problems for resource, budget, and exposure allocation under real-world constraints and objectives. 
-   **·**      Apply deep learning (embedding, seq2seq, transformer-based recommenders) to capture multidimensional user behaviors and complex signals such as location, device, and transaction sequences. 
-   **·**      Collaborate closely with Product, Growth, Marketing, CRM, and Data Platform teams to deploy models into production and monitor performance accuracy and drift on a quarterly basis. 
-   **·**      Build guardrail metrics and growth simulation frameworks to forecast the long-term impact of product or policy changes. 
-   **·**      Contribute to the development of experimentation frameworks and uplift platforms with ML engineers to automate analysis and reporting. 
-   **·**      Develop reproducible analysis notebooks and dashboards; conduct insight workshops for non-technical stakeholders. 
-   **·**      Optimize data querying and processing workflows using SQL, NoSQL, and Python. 
-   **·**      Enhance and automate data pipelines and streaming data processes for scalability and reliability. 
-   **·**      Optimizing process of access, security and managing infrastructure. 
-   **·**      Mentor and provide technical guidance to junior Data Specialist. 
-   **·**      Propose product improvement ideas and write research reports 

  

**Qualifications:**  

Education & Experience 

-   **·**      Bachelor’s degree or higher; Master’s degree or published research is preferred. 
-   **·**      In-depth knowledge of Data Platforms/Data Science. 
-   **·**      Proficient in Python and SQL/NoSQL. 
-   **·**      At least 3 years of experience in Data Science projects. 
-   **·**      Strong ability to research and apply English-language materials. 

Technical Competencies 

-   **·**      Proficient in Data Platforms and Data Science. 
-   **·**      Skilled in Python, SQL/NoSQL, Git, and Docker. 
-   **·**      Strong ability to improve and optimize processes, pipelines, and code. 

Core Competencies 

-   **·**      Strong problem-solving skills and ability to work independently. 
-   **·**      Proactive in researching and adopting new technologies. 
-   **·**      Mentorship and teamwork support capabilities

## Apply

[Apply at Qode](https://apply.workable.com/qodeworld/j/28B3BC2790/apply)

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