Data Scientist

ExlService Holdings, Inc.; Bengaluru; On-site; INR 900,000 - 1,400,000; Full time

Job summary

EXL Talent Acquisition Team in Bengaluru is seeking a data science professional with 3+ years of hands-on ML model building and a strong NLP foundation. You will work on end-to-end NLP projects, from data prep to evaluation, leveraging modern language models and RAG pipelines.

The role requires Python expertise, experience with SQL/Spark, cloud platforms like Azure or AWS, and the ability to communicate clearly in a fast-paced, innovative environment.

Qualifications

• Bachelor's or Master's degree in a quantitative field or equivalent experience.
• 3+ years in data science and building ML models.
• Familiarity with NLP evolution from traditional models to modern LLMs.
• Knowledge of advanced RAG pipelines with embeddings, indexing, chunking, reranking, prompts and evaluation.
• Excellent Python programming skills with NumPy, Pandas, Scikit-learn, Jupyter, etc.
• SQL experience with SQL Server and Spark preferred but not mandatory.
• Experience with ML algorithms and neural networks.
• Experience with NLP and text analytics for information extraction and topic modeling.
• Strong communication, troubleshooting and problem-solving in a fast-paced environment.
• Experience with Azure, AWS, Databricks preferred.

Skills

Python programming

NLP

Data science

Cloud platforms

AI frameworks

SQL

Spark

NumPy

Pandas

Scikit-learn

Jupyter

Education

Bachelor's degree

Master's degree

Tools

SQL Server

Spark

Azure

AWS

Databricks

NLTK

Job description

Required Skills and Experience:

• Bachelor's or Master's degree in a quantitative field (CS, machine learning, mathematics, statistics) or equivalent experience.
• 3+ years of experience in data science, building hands-on ML models.
• Candidate must be aware of entire evolution history of NLP (Traditional Language Models to Modern Large Language Models), training data creation, training set-up and finetuning
• Knowledge of advanced RAG pipelines with proper embeddings, indexing, chunking, reranking, prompts and evaluation
• Excellent programming skills in Python. Strong working knowledge of Pythons numerical, data analysis, or AI frameworks such as NumPy, Pandas, Scikit-learn, Jupyter, etc
• SQL skills with SQL Server and Spark experience is preferred but not necessary.
• Knowledge of predictive/prescriptive analytics including Machine Learning algorithms (Supervised and Unsupervised) and deep learning algorithms and Artificial Neural Networks
• Experience with Natural Language Processing (NLTK) and text analytics for information extraction, parsing and topic modeling.
• Excellent verbal and written communication. Strong troubleshooting and problem-solving skills. Thrive in a fast-paced, innovative environment
• Experience with cloud platforms such as Azure, AWS, Databricks is preferred