Hello, I am

Purba Saha

01. About Me

Who I Am

I am an AI/ML Engineering student with hands-on experience building scalable data pipelines, RAG-based LLM applications, and executive-grade BI dashboards. With a track record of transforming complex 100,000+ record datasets into measurable business insights, I am deeply passionate about applying deep learning and large-scale data systems to solve real-world problems.

Currently pursuing my B.Tech in Computer Science & Engineering with a specialization in AI/ML at JIS College of Engineering, I have worked across Power BI dashboard setups, predictive analytics, and conversational agent workflows. I am actively seeking internships and full-time engineering opportunities where I can design robust models and deploy intelligent software pipelines.

Education

B.Tech in Computer Science & Eng.
AI/ML Specialization (Expected 2027)
JIS College of Engineering

Specialization

Artificial Intelligence &
Machine Learning Systems

Expertise

Python, SQL, RAG Pipelines,
LangChain, Power BI

Status

Open to internships &
full-time opportunities

02. Experience

Where I've Worked

Power BI Intern

Cognifyz Technologies

Feb 2026 – Mar 2026

Remote, India

Designed production-grade Power BI dashboards converting multi-source raw data into real-time KPI views for senior stakeholders, significantly reducing manual reporting overhead.
Built complex DAX measures and calculated columns across relational models, enabling drill-through analysis of business metrics across multiple departments.
Collaborated with product and analytics teams in an agile, feedback-driven workflow to iterate on dashboard UX and data accuracy.

Data Visualization Analyst — Virtual Internship

Tata Consultancy Services via Forage

Jan 2026

Remote / Virtual

Built C-suite Power BI dashboards unifying KPIs across business units, enabling data-driven executive decision-making.
Presented strategic insights to simulated C-level stakeholders, translating complex technical findings into clear, actionable business recommendations.

03. Skills

My Technical Toolbox

Languages

Python SQL (PostgreSQL, MySQL) JavaScript

ML / AI

RAG Pipelines LangChain LLMs Ollama FAISS OpenAI & Groq APIs Deep Learning & NLP Embeddings

Data & Analytics

Pandas NumPy Matplotlib & Seaborn Power BI & DAX Excel

Tools & Platforms

Git GitHub VS Code Jupyter Notebook Google Colab

04. Projects

What I've Built

AI QnA Chatbot (RAG-Based)

Engineered an end-to-end Retrieval-Augmented Generation (RAG) pipeline to enable context-aware question answering over custom documents. Integrated Groq API and Ollama for low-latency LLM inference, and optimized embedding/retrieval stages using a FAISS vector store.

Python LangChain Ollama FAISS Groq API

View Repository

Customer Behaviour Analytics Dashboard

Analysed 100,000+ transaction records using optimized SQL queries and Python pipelines to uncover key behavioral segments. Powered a retention strategy delivering a 25% improvement in retention rate, and built interactive Power BI reports with custom DAX KPIs.

Python Pandas PostgreSQL Power BI DAX

View Repository

Spotify Global Music Analytics

Modelled the Spotify Top 50 global dataset, performing multi-dimensional analytics on song popularity, duration, artist rank, and album trends. Prototyped UI layouts in Figma and implemented interactive filters with time-intelligence DAX measures.

Power BI DAX Figma Data Modeling

View Repository

05. Hackathons & Wins

Milestones & Timeline

🥇 1st Place Win

App-e-Teaser Tech Fest (50+ teams)

Major Achievement Technical Event

Built and presented a full-stack application that outperformed 50+ competing teams, demonstrating end-to-end system design, engineering rigour, and strong presentation/communication skills.

Full Stack System Design Pitching

Smart India Hackathon 2024

Team Byte Gurus

Aug 2024 JIS College of Engineering

Designed and built a Smart Classroom Management System using Laravel, improving operations efficiency, user access levels management, and real-time activity tracking.

Laravel PHP MySQL

Diversion 2K25

Team ByteGurus

Feb 2025 IEM Kolkata

Designed and developed an AI Powered Financial Advisory Platform. The solution analyzes property metrics and historical performance indicators to aid user investments.

AI Python JavaScript

InnovoCon 2025

Organizer Role

Feb 2025 JIS College of Engineering

Spearheaded coordination and planning logistics for InnovoCon 2025. Handled developer track allocations, event setup tracking, and program execution scheduling to host technical panels.

Event Management Leadership

Hack4Bengal 4.0

Team Pookies

Apr 2025 Virtual Hackathon

Created Fakebuster AI - a web classifier utilizing machine learning models to detect misinformation campaigns, fake quotes, and manipulated data elements across feeds.

AI Python JavaScript

06. What's Next

Get In Touch

I am actively seeking internships and full-time opportunities in AI/ML, data science, and analytical roles. Feel free to reach out to discuss work opportunities or collaborations!

Email Me

"Let's build something amazing together."

Purba Saha

purbasahasince2005@gmail.com | +91-8389991324 | Kalyani, West Bengal, India
LinkedIn | GitHub | Portfolio

Summary

AI/ML Engineering student with hands-on experience building scalable data pipelines, RAG-based LLM applications, and executive-grade BI dashboards. Proficient in Python, SQL, LangChain, and Power BI, with a track record of transforming 100,000+ record datasets into measurable business outcomes. Passionate about applying deep learning and large-scale data systems to solve real-world problems — aligned with Google's mission to organise the world's information.

Education

B.Tech in Computer Science & Engineering — AI/ML Specialisation Expected – May 2027

JIS College of Engineering, Kalyani, West Bengal, India

Technical Skills

Languages:	Python, SQL (PostgreSQL, MySQL), JavaScript
ML / AI:	RAG Pipelines, LangChain, LLMs, Ollama, FAISS, OpenAI API, Groq API, Deep Learning, NLP, Embeddings
Data & Analytics:	Pandas, NumPy, Matplotlib, Seaborn, Power BI, DAX, Excel
Tools & Platforms:	Git/GitHub, VS Code, Jupyter Notebook, Google Colab

Experience

Power BI Intern Feb 2026 – Mar 2026

Cognifyz Technologies — Remote, India

Designed production-grade Power BI dashboards converting multi-source raw data into real-time KPI views for senior stakeholders, significantly reducing manual reporting overhead.
Built complex DAX measures and calculated columns across relational models, enabling drill-through analysis of business metrics across multiple departments.
Collaborated with product and analytics teams in an agile, feedback-driven workflow to iterate on dashboard UX and data accuracy.

Data Visualization Analyst — Virtual Internship Jan 2026

Tata Consultancy Services (Forage) — Remote

Built C-suite Power BI dashboards unifying KPIs across business units, enabling data-driven executive decision-making.
Presented strategic insights to simulated C-level stakeholders, translating complex technical findings into clear, actionable business recommendations.

Projects

AI QnA Chatbot (RAG-Based) Apr 2026

Python, LangChain, Ollama, FAISS, Groq API

Engineered an end-to-end Retrieval-Augmented Generation (RAG) pipeline using LangChain and FAISS vector store to enable context-aware question answering over custom document corpora.
Integrated Groq API and Ollama for low-latency LLM inference; optimised embedding and retrieval stages to improve answer relevance and reduce hallucination.
Designed modular pipeline architecture supporting plug-and-play model swapping and scalable document ingestion.

Customer Behaviour Analytics Dashboard Jan 2026

Python, Pandas, NumPy, PostgreSQL, Power BI

Analysed 100,000+ transaction records using optimised SQL queries and Python pipelines, uncovering 5 key behavioural segments that informed strategic business decisions.
Powered a customer retention strategy that delivered a 25% improvement in retention rate through actionable segmentation insights.
Built interactive Power BI reports featuring drill-down hierarchies, custom DAX KPIs, and dynamic slicers tailored for non-technical stakeholders.

Spotify Global Music Analytics Dashboard Mar 2026

Power BI, DAX, Figma

Modelled the Spotify Top 50 global dataset; performed multi-dimensional analysis across popularity, duration, album type, and artist metrics.
Prototyped UI in Figma, then implemented the full dashboard with advanced DAX time-intelligence calculations and intuitive cross-filtering for exploratory analysis.

Achievements & Leadership

1st Place — App-e-Teaser Tech Fest (50+ teams): Built and presented a full-stack application that outperformed 50+ competing teams, demonstrating end-to-end system design, engineering rigour, and strong communication skills.