SAI KIRAN POLA
Data Scientist
Hyderabad,TG
Summary
Experienced Data Scientist with a proven track record of delivering impactful insights and AI solutions. Over 6 years of experience applying advanced ML, DL and NLP techniques to solve complex business problems. Proficient in various NLP tasks and skilled in using cutting-edge technologies like Gen AI.
Overview
6
6
years of professional experience
4
4
years of post-secondary education
Work History
Associate Solution Leader
Brane Enterprises Pvt Ltd
03.2024 - Current
- Developed a Question-Answering System for DigitalCEO using the RAG framework, reducing time and cost by 52% and 44%.
- Chunked and embedded policy documents using Bi Encoder, stored in a vector database.
- Retrieved relevant document chunks in response to queries, reranked them using a Cross Encoder, and fine-tuned the Cross Encoder for improved accuracy.
- Generated answers by sending query and retrieved context to a generative model.
Associate Solution Leader
Brane Enterprises Pvt Ltd
09.2023 - 03.2024
- Created a Summarization Application for a News Client, improving alignment with human instruction, behavior, and style.
- Fine-tuned models such as Mixtral 8*7b, Llama-3 8b, and FLAN-T5 using SFT to generate targeted summaries.
- Developed reward models using fine-tuned cross encoders for grammatically correct, neutral summaries.
- Applied Reinforcement Learning (PPO and DPO) to optimize the reward function and reduce KL divergence.
Data Science Specialist - DPEX
Dr Reddy's Laboratories
08.2022 - 09.2023
- Developed a Disease Classification System using NLP-based models, leveraging historical medical data, which increased profits by 9% by reducing expenses.
- Acquired and augmented data, performed preprocessing, and feature engineering.
- Trained models including Naive Bayes, SVM, CNN, LSTM, and BERT.
- Evaluated model performance using Confusion Matrix and Classification Reports.
Data Scientist
Trion Infotech Pvt Ltd
02.2021 - 07.2022
- Developed a Dynamic Pricing Prediction System using historical data, market trends, and customer behavior to retain customers, attract competitors’ customers, and maximize revenue.
- Analyzed and preprocessed 50k+ data rows, performed feature engineering with dimensionality reduction and outlier removal, and segmented data using K-Means.
- Trained models including Linear Regression, Lasso, Ridge, and Decision Tree.
- Identified the best model through K-Fold Cross-Validation and GridSearchCV.
Data Scientist
NCR Corporation
01.2019 - 01.2021
- Developed a POC for NCR ATMs to implement a face recognition system for user identity verification by comparing ATM images with those in the NCR database.
- Applied OpenCV's Haar Cascade to extract face coordinates, generated positive and negative image pairs, and fetched embeddings.
- Trained a Siamese Network model using binary cross-entropy and triplet loss functions for accurate similarity calculation.
Education
Bachelor of Technology - Computer Science And Engineering
Gitam Institute of Technology,Gitam University
Visakhapatnam 06.2015 - 04.2019
Skills
Frameworks : Langchain, Llama Index, Huggingface, Sentence Transformers, Vector DBs, Scikit-Learn, Scipy, NLTK, Gensim, Tensorflow, Keras
Technical Skills : RAG, LLMs- Generative(ChatGPT, Llama 2, Mixtral, Falcon), Embedding(BERT, ROBERTA), T5, Prompt Engineering, Transformers, ML, NLP, Python, Statistics, Probability, Vector Algebra, Calculus
Business Understanding, Analytical Thinking, Good Communication
Timeline
Associate Solution Leader
Brane Enterprises Pvt Ltd
03.2024 - Current
Associate Solution Leader
Brane Enterprises Pvt Ltd
09.2023 - 03.2024
Data Science Specialist - DPEX
Dr Reddy's Laboratories
08.2022 - 09.2023
Data Scientist
Trion Infotech Pvt Ltd
02.2021 - 07.2022
Data Scientist
NCR Corporation
01.2019 - 01.2021
Bachelor of Technology - Computer Science And Engineering
Gitam Institute of Technology,Gitam University
06.2015 - 04.2019
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