Koyana Dutta
Bally
Summary
AI Engineer with 2 years of experience in NLP, LLM integration, and predictive analytics. Skilled in designing scalable ML solutions, building custom chatbots using Rasa and LangChain, and deploying applications with FastAPI and Docker. Proven ability to improve model accuracy and automate workflows across domains including e-commerce, HR tech, and image generation.
Overview
3
3
years of professional experience
1
1
Certification
Work History
AI Engineer
CLAPPIT Pvt. Ltd.
03.2024 - Current
- Integrated RAG pipelines with Gemma-9B and Mistral-7B for advanced NLP-based question answering
- Built a secure Rasa chatbot with FastAPI backend, improving data security and reducing latency by 35%
- Developed an intelligent SQL agent using DSPy and Microsoft Phi-3, boosting query generation efficiency by 60%
- Created a Gemini AI-powered chat interface using Langchain and Streamlit, improving response accuracy by 70%
- Implemented image generation workflows using vision-language models for real-time user inputs
AI Consultant
CLAPPIT Pvt. Ltd.
12.2023 - 02.2024
- Integrated Kubernetes clusters with K8sGPT and Kafka for real-time monitoring and command response
- Developed custom chatbots leveraging LLMs and explored RAG-based search with Llama 2 for domain-specific applications
Data Scientist - Trainee
One Billion Ideas Pvt. Ltd.
04.2023 - 02.2024
- E-commerce Analytics: Processed 10K+ daily transactions, increasing average order value by 12% and customer satisfaction by 20%
- Computer Vision: Developed Raspberry Pi-based face detection using CNNs, reducing false negatives by 50%
- Conversational AI: Built chatbot using Langchain and Claude, cutting support costs by 50%
- Voice Recognition: Developed a voice-to-text system using Whisper, achieving 95% transcription accuracy
Data Science Intern
One Billion Ideas Pvt. Ltd.
01.2023 - 03.2023
- Conducted anomaly detection for stock trend forecasting and created Flask APIs for streamlined data pipelines
Data Science & ML Intern
Gilbert Research Center
10.2022 - 10.2022
- Contributed to CNN-based signal/image processing by building PCA-driven visualizations for biomedical datasets
Education
Integrated M.Sc. - Applied Mathematics
Central University of Jharkhand
Ranchi06.2019
Skills
- Programming: Python, SQL
- ML & DL: Scikit-Learn, XGBoost, TensorFlow, Keras, CNN
- NLP & LLMs: Rasa, Langchain, DSPy, BERT, Mistral-7B, Claude, Phi-3, Gemini AI, Gemma-9B
- Cloud & DevOps: AWS, Docker, FastAPI
- Database Management: MySQL, MongoDB, Oracle
- Data Visualization: Tableau, Matplotlib
- Front-End: Streamlit
Certification
- AWS Certified Cloud Practitioner
- Tableau Desktop Professional
Projects
Yoga Pose Classification and Detection
- Achieved 90% accuracy using MoveNet and 85% with EfficientNet for real-time pose classification.
Stock Market Data Analysis using Polygon.io API
- Developed a Python-based data analysis tool that integrates with the Polygon.io API to retrieve and visualize historical stock market data. Utilized Pandas, NumPy, Matplotlib, and Seaborn to process and analyze trends, enabling efficient evaluation of stock performance over time.
Languages
Bengali
First Language
English
Proficient (C2)
C2
Hindi
Proficient (C2)
C2
Spanish
Beginner (A1)
A1
Timeline
AI Engineer
CLAPPIT Pvt. Ltd.
03.2024 - Current
AI Consultant
CLAPPIT Pvt. Ltd.
12.2023 - 02.2024
Data Scientist - Trainee
One Billion Ideas Pvt. Ltd.
04.2023 - 02.2024
Data Science Intern
One Billion Ideas Pvt. Ltd.
01.2023 - 03.2023
Data Science & ML Intern
Gilbert Research Center
10.2022 - 10.2022
Integrated M.Sc. - Applied Mathematics
Central University of Jharkhand
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