Hi, I'm Arijit Nandi

Advanced Machine Learning Researcher

Passionate about turning cutting-edge AI concepts into impactful solutions. Specialized in machine learning, data science, and innovative technology applications.

5+ Years Experience
9+ Projects Completed
15+ Publications
Arijit Nandi - AI/ML Engineer and Researcher

About Me

Get to know me better

Biography

Dr. Arijit Nandi is an Advanced AI researcher and engineer with a Ph.D. in Artificial Intelligence from UPC-BarcelonaTech and over 6+ years of experience building scalable, privacy-preserving, and interpretable AI systems for real-world deployment. His work spans federated learning for privacy-preserving model development, explainable AI (XAI) for transparency and accountability, and applied deep learning across time-series, sensor data, and language-based systems. On the applied side, he builds LLM-powered tools for intelligent automation — including content personalization, workflow optimization, and decision-support assistants — alongside an XAI-as-a-Service platform aimed at democratizing model interpretability. He architected EDFL, an open data space federated learning framework recognized by the European Commission on its Innovation Radar.

He bridges academic rigor and production deployment, with experience across the full ML lifecycle: from research and prototyping to containerized, scalable systems in real-world environments. His focus is on making AI not just performant — but transparent, safe, and human-centric.

Core Expertise Areas

Machine Learning Deep Learning Federated Learning Explainable AI Large Language Models Trustworthy AI Emotion Recognition Research & Innovation
Arijit Nandi - AI Research and Development
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Technical Skills

Technologies and tools I work with

Programming Languages

Python 5+ years
MATLAB 6+ years
JavaScript 3+ years
SQL 4+ years

Machine Learning & AI

TensorFlow 5+ years
PyTorch 4+ years
Scikit-learn 5+ years
Keras 4+ years
LangChain 0.5 years

Data Science & Analytics

Pandas 5+ years
NumPy 5+ years
Matplotlib 4+ years
Seaborn 4+ years
Plotly 3+ years

Big Data & Cloud

Apache Spark 0.3 years
Hadoop 1+ years
AWS 0.5 years
Azure 0.5 years
Kubernetes 1+ years

MLOps & DevOps

Docker 3+ years
Git 6+ years
MLflow 2+ years
Kubeflow 0.3 years

Databases & Data Engineering

PostgreSQL 2+ years
MongoDB 2+ years
Redis 0.3 years
Apache Kafka 0.3 years
Apache Airflow 0.3 years

Web Development & APIs

FastAPI 2+ years
Flask 2+ years
Django 0.2 years
React 0.2 years
Streamlit 3+ years

Specialized AI/ML

Computer Vision 2+ years
Federated Learning 4+ years
Explainable AI 3+ years
Reinforcement Learning 0.3 years

Work Experience

My professional journey

2022-Present

Advanced Machine Learning Researcher

Big Data and Data Science Unit Eurecat - Centro Tecnológico de Cataluña, Barcelona Spain

Leading AI initiatives and developing machine learning solutions for enterprise clients.

  • Worked on the "AI4Drought" project in collaboration with European Space Agency (ESA), Lobelia Earth, and Barcelona Super Computer (BSC) to improve seasonal climate predictions of drought through Earth Observation data and climate variables analysis
  • Contributed to explainable AI (XAI) methods for explaining drought prediction AI models and identifying the most influencing indicators for drought prediction
  • Developed an explainable AI GUI app (XaiSS) that combines different XAI open-source libraries into a unified drag-and-drop platform for AI models (Scikit-learn, TensorFlow, or PyTorch)
  • Deployed XaiSS application using Python 3.10, Streamlit, and Docker-container for easy accessibility and scalability
2022-Present

Artificial Intelligence Consultant (Freelance)

Tuttify.io

Contributed as an AI expert to design and develop emotion recognition from facial expression using Tensorflow 2.0 and FER 2013, CK++. The trained model is deployed in the backend of Tuttify (https://tuttify.io/) to recognize different emotions of the students.

  • Developed emotion recognition system using TensorFlow 2.0 and FER 2013, CK++ datasets
  • Deployed the trained model in Tuttify backend for real-time student emotion analysis
  • Implemented pose estimation of students to analyze attention span and engagement
  • Combined emotional status with pose data to provide comprehensive engagement metrics
2019-2022

Machine Learning Researcher

Training Unit Eurecat - Centro Tecnológico de Cataluña, Barcelona Spain

Contributed as an AI expert to design and develop AI MOOC course for young people (AIM4YOU) under the EU project YNSPEED (Youth new personal & employable skills development).

  • Designed and developed comprehensive AI MOOC course (AIM4YOU) for young people under EU project YNSPEED
  • Course available at: https://irea.teachable.com/p/artificial-intelligence
  • Developed initial version of collaborative and content-based filtering recommendation system for Moodle LMS
  • Implemented course recommendation algorithms to enhance student learning experience and engagement

Featured Projects

Some of my recent work

DFL - Docker-Based Federated Learning Framework

DFL: Docker-Based Federated Learning Framework

Designed and deployed a Docker-enabled federated learning framework (DFL) for multi-modal data stream classification. Clients and global servers communicate via lightweight MQTT protocol, enabling real-time emotion state classification from distributed physiological data (EDA + RB) while preserving data privacy. Published in Computing (Springer, 2023).

Python TensorFlow Keras Docker MQTT Federated Learning
View on GitHub →
RPWE - Reward Penalty Weighted Ensemble for Multimodal Data Stream Classification

RPWE: Reward-Penalty Weighted Ensemble

Developed a novel Reward-Penalty Based Weighted Ensemble (RPWE) approach for emotion state classification from multi-modal physiological data streams (DEAP & AMIGOS datasets). Classifiers are dynamically rewarded or penalized based on predictive performance, with an auto-adjusting beta factor. Published in International Journal of Neural Systems (2022).

Python Scikit-Learn Ensemble Learning Jupyter Notebook Data Streaming
View on GitHub →
Fed-ReMECS - Federated Learning for Real-time Emotion State Classification

Fed-ReMECS: Federated Real-time Emotion Classification

Built a federated learning framework (Fed-ReMECS) for real-time emotion state classification from multi-modal physiological data streams via wearable sensors. Uses MQTT for IoT communication and builds a global classifier without accessing users' local data, ensuring privacy. Evaluated on the DEAP dataset. Published in Methods (Elsevier, 2022).

Python TensorFlow Keras MQTT Federated Learning IoT
View on GitHub →

Education

My academic background

2019-2022

Ph.D. in Artificial Intelligence

Polytechnic University of Catalonia (UPC-BarcelonaTech)

Specialized in Artificial Intelligence and Machine Learning with focus on deep learning applications.

2017-2019

Master of Technology in Computer Science

National Institute of Technology, Durgapur, West Bengal, India

Specialized in Artificial Intelligence and Machine Learning with focus on deep learning applications.

2012-2016

B.Tech in Computer Science and Engineering

Budge Budge Institute of Technology

Graduated with honors. Focused on software engineering and data structures.

Thesis

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Publications

Research contributions and scientific work

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Latest Blog Posts

Thoughts on AI, ML, and technology

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Connect With Me

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Get In Touch

Let's work together

Email

arijit4ai@gmail.com

Phone

+34 (if you have!!)