Tathagata Bhattacharyya

Program Manager | Technical Trainer | Python, Data Analytics & Generative AI

About Me

Program Manager and Technical Trainer with 12+ years of experience in technology training, learning & development, curriculum delivery, and stakeholder engagement.

I have trained 2,000+ learners across Python, Java, Data Analytics, and emerging AI technologies while supporting learners and corporate clients across India, Germany, the UK, and the USA.

Alongside programme delivery and technical training, I am building hands-on expertise in Generative AI and Agentic AI, with projects involving Retrieval-Augmented Generation (RAG), semantic search, vector databases, and AI-powered applications.

Professional Experience

Head Held High Foundation

Program Manager | Jul 2026 – Present

Managing end-to-end delivery of technology and skill-development programmes, coordinating with universities, faculty, trainers, and internal stakeholders while supporting curriculum planning, programme monitoring, learner progress, and technical training delivery.

Kolkata, India

Technical Trainer (Contract) | Nov 2025 – Mar 2026

Delivered industry-aligned technical training to 100+ students, achieving a 100% certification success rate while supporting curriculum development, mentoring, and assessments.

PA Team Software Consulting Ltd.

Technical Trainer | Dec 2022 – Oct 2025

Delivered RPA and technology training for internal talent and international corporate clients across Germany, the UK, and the USA. Managed training planning, learner onboarding, curriculum delivery, assessments, and learner development.

Kolkata, India

Norlox Solutions Pvt. Ltd.

Java & Python Trainer (Part-Time / Retainer) | Apr 2023 – Present

Deliver live online Java and Python training to international learners, primarily students based in the USA, with hands-on programming, problem-solving, coding exercises, and technical mentoring.

Remote

TalentSprint Pvt. Ltd.

Consultant – Delivery | Dec 2021 – Nov 2022

Delivered PEGA technical training aligned with certification, placement, and learner-development objectives while collaborating with institutional stakeholders.

India

Webtek Labs Pvt. Ltd.

Senior Technical Consultant | May 2014 – Jul 2021

Delivered extensive Java and Python training, developed technical curriculum and practical learning materials, and mentored learners through programming projects and employability-focused skill development.

Kolkata, India

Projects

⭐ Featured Project

Enterprise RAG Assistant

An end-to-end Retrieval-Augmented Generation application designed to answer questions across multiple PDF documents using semantic retrieval and LLM-based response generation.

PythonOpenAI APIFAISSStreamlitRAGEmbeddingsSemantic Search

Problem

Traditional keyword search struggles to answer natural-language questions across large document collections.

Solution

Built a RAG pipeline combining document ingestion, chunking, embeddings, FAISS retrieval, and context-grounded LLM generation.

Outcome

Created an interactive knowledge assistant capable of answering questions across multiple uploaded PDF documents.

✓ Built the RAG pipeline from first principles without relying on LangChain.
✓ Implemented intelligent chunking with overlap and semantic retrieval.
✓ Added persistent FAISS index and metadata storage.
✓ Integrated context-grounded LLM response generation.
✓ Developed a Streamlit interface for multi-document knowledge-base interaction.

View Case Study →

View GitHub →Read Documentation →

Other Projects

Python for Data Analytics Training

A structured, hands-on learning repository designed to teach Python for Data Analytics through practical examples, exercises, and project-based implementation.

PythonPandasMatplotlibData Analytics

✓ Python fundamentals for data analysis.
✓ Pandas-based data exploration and filtering.
✓ Basic statistical analysis.
✓ Sales Analysis mini-project.
✓ Data visualization using Matplotlib.

View GitHub →

Local AI Chatbot using Ollama & Tkinter

Developed a desktop-based AI chatbot using Python, Tkinter, and Ollama to enable local interaction with large language models without relying on cloud APIs.

Technologies: Python, Tkinter, Ollama, Local LLMs

View Project →

AI Weather Agent

Built an AI-powered weather assistant capable of generating intelligent weather responses using APIs, automation workflows, and conversational AI concepts.

Technologies: Python, APIs, AI Agents, OpenAI

View Project →

ESPN Cricinfo Analytics Dashboard

Developed a Power BI analytics dashboard using ESPN Cricinfo data to visualize player statistics, match insights, and cricket performance analytics.

Technologies: Power BI, Data Analytics, Visualization, Cricket Analytics

View Project →

Indian Kids Screen Time Analysis

Conducted a data analysis project focused on screen time patterns among Indian children to identify behavioral trends, usage insights, and digital consumption patterns.

Technologies: Python, Data Analytics, Visualization, Research Analysis

View Project →

Job Market Analysis

Conducted a data-driven analysis of job market trends to identify high-demand skills, technology trends, and evolving industry requirements across different domains.

Technologies: Python, Data Analytics, Visualization, Market Research

View Project →

Training Portfolio

Technical training experience across programming, data analytics, automation, and emerging AI technologies for academic, professional, and international learners.