Open to AI/ML & Data Science Opportunities

I am a 

Building Machine Learning Models & Practical AI Systems

I build and experiment with machine learning, generative AI, data analytics, and data engineering solutions. My projects focus on turning real-world problems into practical applications while continuously learning, experimenting, and improving my technical skills.

Machine Learning
Generative AI & RAG
Data Analytics
Professional portrait of Avijit Jana

“I build and study practical AI/ML systems, data products, and intelligent applications.”

Background & Focus

About My Expertise

I'm a Data Science and AI/ML practitioner focused on building practical solutions with data, machine learning, and modern AI technologies. I've worked on projects spanning predictive modeling, data analytics, generative AI, RAG applications, and data engineering, using these projects to turn what I learn into working applications.

I enjoy understanding how systems work end-to-end—from exploring and preparing data to developing models, building APIs and applications, and experimenting with deployment and MLOps workflows. I'm continuously expanding my skills through hands-on projects, experimentation, and learning new technologies.

End-to-End SystemsApplied AI / MLContinuous Iteration

Machine Learning & Model Development

Building and evaluating machine learning models for classification, regression, prediction, and real-world data problems, with a focus on experimentation, evaluation, and improvement.

Generative AI & RAG

Exploring and building LLM-powered applications, retrieval-augmented generation systems, and AI workflows using modern language models, embeddings, and vector databases.

Data Science & Analytics

Analyzing real-world datasets, uncovering patterns, and building predictive models and interactive dashboards that turn data into useful insights.

Data Engineering & Deployment

Working with data pipelines, SQL, APIs, Docker, cloud platforms, and deployment workflows to understand how data and ML applications move from development toward usable systems.

Skills & Technologies

Tools and technologies I work with every day

Pythonscikit-learn, pandas, PyTorch
MongoDBNoSQL, Document DB
Vector DBPinecone, ChromaDB
StreamlitData Apps, Dashboards
FastAPIREST APIs, Async
RAG AppsRetrieval Augmented Gen
LangChainLLM Orchestration
VisualizationPower BI, Plotly, D3
DockerContainerization, K8s
GitVersion Control, CI/CD
Always Learning

Currently Exploring

Areas I'm actively studying and building expertise in right now.

AI / LLMs

Agentic AI & Multi-Agent Systems

Building autonomous AI agents with tool use, planning, and memory using LangGraph and CrewAI frameworks.

MLOps

Kubernetes for MLOps

Deploying and scaling ML workloads on Kubernetes clusters using Kubeflow and custom operators.

Deep Learning

LLM Fine-Tuning (QLoRA / PEFT)

Fine-tuning large language models efficiently using Parameter-Efficient Fine-Tuning techniques on domain-specific datasets.

Systems

Rust for Systems Programming

Learning Rust to build high-performance data processing tools and extend Python ML pipelines with native extensions.

Deep Learning

Graph Neural Networks

Studying GNNs for fraud detection, recommendation systems, and knowledge graph construction using PyG.

Data Engineering

Data Contracts & Data Quality

Implementing data contracts, schema validation, and automated quality checks in production data pipelines.

Featured Projects

Explore real-time repositories and open-source applications in Machine Learning, AI, Data Engineering, and Web Development. Click any card to explore details.

15 Projects
Filter by:
Hugging Face NLP & image tool interface

huggingface-nlp-image-tool

End-to-end application leveraging Hugging Face pretrained models for multi-task NLP and image generation (Streamlit/Gradio front-end, model evaluation).

CNN benchmark charts

cnn-architectures-benchmark

Comparative benchmark of CNN architectures (LeNet, AlexNet, GoogLeNet, ResNet, Xception) on MNIST / Fashion-MNIST / CIFAR-10 with full evaluation metrics.

Attention visualization

SeqFlipAttention

PyTorch sequence-to-sequence demo exploring attention mechanisms (synthetic reverse-sequence task) with training scripts and visualizations.

Cybersecurity incident classification

Classifying_Cybersecurity_Incidents

Classification pipeline for cybersecurity incidents (uses GUIDE dataset) to assist SOC triage — includes modeling, evaluation and analysis.

Sales forecasting visualization

Dominos Predictive Purchase Order System

Sales forecasting project for Domino's ingredient ordering — historical-sales forecasting to optimize orders and reduce waste.

RedBus data dashboard

RedBus Data Dashboard and Scraper

Streamlit dashboard + Selenium scraper that collects RedBus travel data and visualizes trends for operational analysis.

Financial document analysis dashboard

Financial Document Analysis Dashboard

An AI-powered Streamlit dashboard that extracts, parses, and analyzes financial documents (PDFs, reports, statements) to provide structured insights and visualizations for decision-making.

Global electronics insights dashboard

Illuminating Insights for Global Electronics

A data storytelling dashboard that analyzes global electronics market trends, supply chain metrics, and operational KPIs, offering interactive insights for strategic planning.

Credentials

Certifications

Professional certifications and credentials that validate my expertise.

Machine Learning Engineering for Production (MLOps)

DeepLearning.AI

MLAug 2024
Verify

Machine Learning Specialization

Stanford University / Coursera

MLMay 2024
Verify

AWS Certified Cloud Practitioner

Amazon Web Services

CloudMar 2024
Verify

Python for Data Science and AI

IBM / Coursera

PythonNov 2023
Verify

Google Data Analytics Professional Certificate

Google / Coursera

DataSep 2023
Verify

LangChain & Vector Databases in Production

Activeloop

AIJan 2024
Verify

Latest from the Blog

Real-time AI research from the world's leading labs

Sep 23, 2026 • openai.com

Two years of OpenAI Academy

Marking two years of OpenAI Academy and bringing AI skills to even more communities.

Let's Connect

I'm available for collaboration, consulting, or tackling data science challenges. Whether it's a project, an idea, or a new opportunity — I'd love to hear from you.

0 / 2000
Or email me

Data Science & AI Solutions FAQ

Insights into engineering methodology, model optimization techniques, and business impact strategy.

Core AI & ML Engineering

What services do you provide as a Data Scientist & AI Engineer?

Specializing in end-to-end machine learning engineering, MLOps implementation, and custom Generative AI systems. This spans data architecture, model development, and deploying scalable inference pipelines on AWS or GCP.

How do you approach an enterprise Machine Learning lifecycle?

Following a structured MLOps workflow: aligning business objectives, performing rigorous exploratory data analysis (EDA), training baseline models, and deploying containerized solutions equipped with automated data drift monitoring.

How do you build production-ready RAG applications for enterprise data?

Building scalable Retrieval-Augmented Generation systems using vector stores like Pinecone or Qdrant, implementing hybrid search (dense + sparse) and re-ranking algorithms to eliminate hallucinations and secure query responses.

Optimization, Strategy & ROI

How do you decide between Fine-Tuning an LLM and using RAG?

Selected based on the use case: RAG is optimal for dynamic, external knowledge retrieval with strict data freshness, whereas Fine-Tuning is chosen when modifying a model's specialized style, tone, or domain-specific grammar.

How do you optimize deep learning models for fast, low-cost inference?

Utilizing model quantization (INT8/FP16), structured pruning, and hardware acceleration frameworks like ONNX Runtime or TensorRT to reduce memory footprint and latency while retaining predictive precision.

How do you evaluate and demonstrate real business ROI for AI projects?

Defining baseline metrics before development, optimizing cost-per-inference ratios, and executing A/B testing frameworks to measure direct business impacts on conversion rates, automation throughput, and operational costs.