Data Scientist II

Job Description

Data Scientist (3–6 Years Experience)

Location

Bangalore, India (Hybrid / Remote as applicable)

Role Overview

We are looking for a Data Scientist with strong analytical and machine learning skills to work on data‑driven problem solving and model development.
The role focuses on hands‑on analysis, model building, and deployment support, working closely with senior data scientists, engineers, and product teams.

You will contribute to building scalable ML solutions and help convert business problems into data science use cases.

Key Responsibilities

Data Analysis & Exploration

• Perform exploratory data analysis (EDA) on structured and semi‑structured data
• Clean, preprocess, and transform large datasets
• Create clear visualizations and insights for stakeholders
• Write efficient and readable SQL queries for analysis and reporting

NLP & GenAI (Exposure Preferred)

• Work on NLP tasks such as text classification, similarity, and entity extraction
• Use pre‑trained models from Hugging Face or cloud APIs
• Assist in building LLM‑based applications (prompt engineering, simple RAG pipelines)
• Evaluate outputs for quality, relevance, and bias

Data Engineering & Pipelines (Good to Have)

• Consume data from data warehouses and data lakes
• Build or modify batch data pipelines using Spark or Python
• Assist with workflow orchestration using Airflow / Prefect
• Understand basic streaming concepts (Kafka exposure is a plus)

Model Deployment & MLOps (Optional)

• Package models for deployment with guidance from senior team members
• Support model deployment using REST APIs (FastAPI or similar)
• Track experiments, metrics, and models using tools like MLflow
• Monitor basic model performance and data quality post‑deployment

Collaboration & Learning

• Work closely with product managers, analysts, and engineers
• Clearly communicate findings and recommendations
• Participate in code reviews and team discussions
• Continuously learn and apply new tools and techniques

Required Skills & Qualifications

Technical Skills

• Strong proficiency in Python (pandas, numpy, scikit‑learn)
• Good knowledge of SQL (joins, aggregations, subqueries)
• Solid understanding of: 
  • Statistics & probability
  • Linear regression, classification models
• Experience with machine learning libraries 
  • scikit‑learn
  • XGBoost / LightGBM (preferred)

Data & ML Tools

• Experience with Jupyter notebooks
• Familiarity with Spark / PySpark (hands‑on or project experience)
• Basic experience with MLflow or similar experiment tracking tools
• Version control using Git

Cloud & Platforms

• Working knowledge of at least one cloud platform: 
  • AWS / Azure / GCP
• Experience querying data from: 
  • Snowflake / BigQuery / Redshift (or similar)
• Basic understanding of data lakes and warehouses

Preferred / Nice‑to‑Have

• Exposure to PyTorch or TensorFlow
• Experience with NLP or GenAI projects
• Familiarity with Docker
• Understanding of basic data engineering concepts
• Experience working in agile teams

Machine Learning Algorithms & Techniques (Hands‑On)

Supervised Learning

• Linear Models 
  • Linear Regression
  • Logistic Regression
  • Regularization (L1, L2, Elastic Net)
• Tree‑Based Models 
  • Decision Trees
  • Random Forest
  • Gradient Boosting (XGBoost, LightGBM, CatBoost)
• Clustering Techniques 
  • K‑Means
  • Hierarchical Clustering
  • DBSCAN
  • PCA (feature reduction)
  • t‑SNE / UMAP (visualization & analysis)

Dimensionality Reduction 

Time Series & Forecasting (Basic–Intermediate)

• Statistical forecasting: 
  • Moving averages
  • ARIMA / SARIMA (conceptual + basic use)
• ML‑based forecasting using regression and tree‑based models

Model Evaluation & Optimization

• Cross‑validation techniques
• Hyperparameter tuning (Grid Search, Random Search)
• Bias–variance tradeoff
• Handling class imbalance
• Selection of appropriate evaluation metrics

Experience

3–6 years of relevant industry experience