Data Scientist 2/Senior Data Scientist
Location: Chennai, India
Department: Projects & Delivery
Experience: 3-5 years
Skills: LLM, Classical ML, Data Science, Machine Learning
- Process and model large datasets using PySpark / Spark SQL
- Build and deploy ML pipelines on Databricks / AWS
- Design scalable workflows using:
- Docker
- AWS (ECR, Lambda, Step Functions)
- Implement real-time or near real-time inference pipelines
- Perform advanced feature engineering aligned to business objectives
- Build end-to-end ML pipelines:
- Problem framing
- Feature engineering
- Model development
- Evaluation
- Deployment
- Business impact measurement
- Work with:
- Tree-based models (XGBoost, LightGBM)
- GLMs
- Clustering models
- Apply modeling in marketing use cases:
- Targeting
- Budget optimization
- Churn prediction
- Demand forecasting
- Handle constrained-data scenarios:
- Sparse labels
- Single-class learning
- PU learning
- Apply model explainability methods:
- SHAP
- LIME
- GPT-4, Mistral, Llama, Claude
- Prompt engineering strategies
- LLM evaluation frameworks
- Human-in-the-loop systems
- Confidence grading mechanisms
- ReAct patterns
- Multi-agent collaboration setup
- Fine-tune models where required
- Programming & Data Processing
- Python (NumPy, Pandas, PySpark)
- Experience with distributed computing
- Git / GitHub version control
- Cloud/MLops Technologies: AWS, GCP, Docker
- Strong understanding of:
- Supervised & Unsupervised learning
- Feature engineering
- Model validation strategies
- Scikit-learn
- TensorFlow / Keras
- PyTorch
- Deep Learning
- ANN basics
- CNN (1D/2D)
- LSTM fundamentals
- Transformer architectures
- Communication
- Clear articulation during client calls
- Ability to simplify complex ML concepts
- Structured thinking with clear next steps
- Presentation
- Whiteboarding ML approaches
- Building business-impact-driven presentations for stakeholders
- Rapid problem framing
- Pragmatic trade-off decisions
- Delivering within defined timelines
- Ownership mindset
- Bias toward execution
- Comfort with ambiguity
- Business-first thinking
- Ability to measure and articulate impact
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