Data Scientist Lead (LLM, Generative AI, ML)

Top 3 reasons to join us

• Professional and flexible working environment
• Career development and international assignments
• Attractive salary and reward initiatives

Job description

Responsible for the full lifecycle of analytical and machine learning model development, leading and supporting the team while contributing hands-on across all phases, from ideation and experimentation to implementation, testing, deployment, and optimization.

Responsibilities

• Lead and oversee the Data Science team across research, development, evaluation, fine-tuning, and deployment of ML and generative AI models, including statistical analysis, feature engineering, and hands-on contribution when needed
• Guide the design, implementation, and optimization of robust data pipelines and ML system architectures in collaboration with Data Engineering, ensuring scalability for both real-time and batch use cases
• Provide direction for creating analytical reports, dashboards, and model-driven visual insights to effectively communicate findings to business stakeholders
• Establish and enforce MLOps and technical quality standards - including model versioning, reproducibility, observability, governance, ensuring the team consistently follows these standards and providing guidance to help them apply the practices effectively
• Perform solution reviews, code reviews, and model validation to ensure consistent delivery quality
• Lead technical discussions with the team and clients, provide effort estimations, deliver technical training
• Support the PM with source-control and technical governance strategies

Your skills and experience

Technical Skills

• 5+ years of hands‑on experience in Data Science, ML, or Applied AI
• Proficiency in Python (e.g., Pandas, NumPy, FastAPI)
• Strong experience with SQL and working with relational and NoSQL databases
• Good knowledge of big data technologies (e.g., Spark, Databricks, Delta Lake, Kafka)
• Experience with at least one Cloud provider (e.g., Azure, AWS, or GCP)
• Experience using data visualization / BI tools such as Power BI, Tableau, or open-source BI tools
• Solid knowledge and hands-on experience with key machine learning algorithms such as classification, regression, clustering, time series forecasting, and anomaly detection using tools like Scikit-learn, PyTorch, and TensorFlow
• Strong foundation in machine learning concepts and deep learning (e.g., CNNs, RNNs, Transformers)

Math & Statistical Knowledge

• Strong foundation in probability, statistics, optimization, and linear algebra          
• Experience in designing experiments (e.g., A/B testing) and interpreting statistical significance
• Ability to apply math-driven thinking to AI/ML model design

Domain Knowledge

• Experience with one of the following domains such as media, banking, finance, healthcare, retail, manufacturing, or insurance
• Ability to understand and interpret domain-specific business problems and translate them into data science solutions

English Requirements

• Good communication skills in English, both written and verbal

Soft Skills

• Strong problem-solving and critical thinking abilities
• Ability to clearly communicate technical findings to non-technical stakeholders
• Collaborative, agile mindset with a self-starter attitude
• Comfortable working in fast-paced, cross-functional teams

Nice to have

• Experience with ETL tools (Airflow, DBT, Azure Data Factory, or AWS Glue)
• Experience with MLOps tools (e.g., MLflow, SageMaker, Azure ML, Vertex AI)
• Generative AI Skills
• Awareness or working knowledge of LLMs (e.g., GPT-4, Claude, LLaMA, Mistral)
• Exposure to GenAI frameworks such as LangChain, LlamaIndex, or Hugging Face Transformers
• Understanding of prompt engineering, embeddings, and concepts like RAG
• Familiarity with GenAI use cases such as summarization, document analysis, chatbots, or code generation
• Ability to integrate GenAI APIs (OpenAI, Azure OpenAI, Hugging Face) into applications

Why you'll love working here

• 13 month salary per year
• Performance bonus (up to 2-month salary)
• Flexible option bonus for good performers & retention bonus for outstanding performers
• Social – Health – Insurance paid fully
• Healthcare: Annual health check-up, Premium Health Insurance (plus 1 slot for your dependent)
• Annual leaves: 14 ~ 18 days
• Clubs program: Football, Badminton, Swimming, Tennis, Rock, Yoga…
• Training courses: Technical skills – Soft skills – English

People are extremely important to us and that’s why we have a clear vision: to make NashTech a great place to work in its sector. We pride ourselves on:

• Professional and Flexible Working Environment
• Great Teamwork
• International Assignments
• WeCare - WeShare - WeDare - WeInnovate Engagement Program