rajatkant@portfolio:~

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Available for opportunities
Hello, I'm

Rajatkant
Nayak

I build |

MSc Computer Science @ Politecnico di Milano 🇮🇹
Blockchain · Federated Learning · AI/ML · Full-Stack

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Blockchain
AI/ML
Security
Full-Stack
RN
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<about>

Know Me Better

I'm currently pursuing my Master's in Computer Science and Engineering at Politecnico di Milano, supported by the MAECI Scholarship from the Italian Government.

My interests sit at the intersection of Blockchain and Federated Learning — building trustworthy, decentralized AI systems. I've competed in multiple international hackathons across Europe, building everything from ESG platforms to decentralized voting dApps on Sui.

I hold a Bachelor's degree in Information Engineering from Università degli Studi di Padova, where my thesis combined PyTorch, Solidity, IPFS, and Zero-Knowledge Proofs to secure federated learning. I also tutor UniPD engineering students and create YouTube crash courses in Calculus and Linear Algebra.

0+ Hackathons
0+ Projects
0+ Certifications
0 Languages

Currently Studying

MSc CS — Politecnico di Milano

Tutor & Content Creator

YouTube Crash Courses · UniPD Tutoring

Languages

English · Hindi · Italian · Oriya

Based In

Milan, Italy 🇮🇹

<terminal>

Interactive Console

Type a command below — try help, skills, hackathons, tutoring, or secret

rajatkant@portfolio ~ zsh
visitor@rajatkant:~$ Welcome! Type help to see available commands.
visitor@rajatkant:~$
<skills>

Tech Arsenal

Blockchain & Web3

Solidity Move (Sui) Smart Contracts IPFS Ganache zkLogin / ZKP Ethereum

AI & Machine Learning

Python PyTorch Scikit-Learn TensorFlow Federated Learning LLMs / Gemini API Prompt Engineering SVM / TLBO

Frontend & UI

React Next.js TypeScript Tailwind CSS shadcn/ui Vite

Backend & Cloud

Supabase PostgreSQL Google Cloud / GKE Kubernetes Edge Functions REST APIs

Data & Visualization

Pandas Matplotlib Data Pipelines R MATLAB Time Series

Embedded & IoT

Arduino MPU6050 Bluetooth (HC-05) IoT Sensors Java
<projects>

Featured Projects

01

Blockchain‑Enabled Federated Learning

Tamper-proof model updates with Ethereum + IPFS + ZKP for 50 edge clients. ~98% accuracy on MNIST.

PyTorchSolidityIPFSZKP
Dec 2024 – Mar 2025 UniPD Thesis

Key Achievements

  • Lightweight CNN + robust outlier detection for 50 clients
  • On-chain logging via custom Solidity smart contract
  • Weights stored on IPFS, verified with hash-based ZKP
  • ≈98% accuracy on MNIST with <10% blockchain overhead
  • Full automation scripts for 5× reproducible CIFAR-10 runs
Code
02

EcoSath: AI-Powered ESG Platform

360° sustainability platform with IoT data automation, AI verification via Gemini, and gamified employee engagement.

Gemini APIIoTDashboardGamification
Nov 2025 NOI Hackathon 24h

Challenge: Tech4Transparency

  • API for live ESG data from IoT sensors & ERPs
  • Real-time web dashboard for stakeholders
  • Gemini AI summaries & anomaly detection
  • "Eco-Coach" gamification for employee sustainability
  • Built in 24 hours at SFSCON Edition 2025
Details
03

DeVote — Decentralized Voting on Sui

Privacy-friendly voting dApp with zkLogin, anti-double-voting nullifiers, and transparent on-chain tallies.

MoveSui SDKNext.jszkLogin
Sep 2025 EPFL Hackathon

Features

  • One-person-one-vote with zkLogin (OAuth-based)
  • Anti-double-voting via on-chain nullifiers
  • Fairness: can't vote for own team (Move logic)
  • Admin lifecycle: open → pause → finalize
  • Clean Next.js + Sui SDK frontend
Code
04

StaySphere — Vacation Rentals

Full-featured vacation-rental marketplace with guest search, booking flow, and 8-step host listing wizard.

ReactTypeScriptSupabaseMapLibre
Oct 2025 Solo Hackathon 6h

Full Stack Features

  • Guest: search + filters + map + gallery + booking
  • Host: 8-step wizard + photo manager + calendar
  • Live price breakdown & availability enforcement
  • Supabase Auth, RLS, Edge Functions, Storage
  • Built solo in just 6 hours using Lovable
Details
05

Fall Detection System

Real-time fall detection using Arduino, MPU6050 accelerometer/gyroscope, and Bluetooth emergency alerts.

ArduinoMPU6050HC-05Bluetooth
Apr – May 2024 UniPD

Detection Triggers

  • Sudden free fall (low acceleration detection)
  • Impact detection (high acceleration spike)
  • Orientation change via gyroscope rotation
  • Wireless Bluetooth alert to smartphone
  • Reliable during dynamic daily activities
Code
06

Hybrid TLBO‑SVM Forecasting

Commodity-price forecasting engine with TLBO-optimized SVR and PCA/KPCA/ICA dimensionality reduction.

PythonScikit-LearnSVRTLBO
2020 – 2021 MCX COMDEX

Results

  • TLBO auto-tunes SVR hyperparameters
  • 3 dimensionality-reduction methods: PCA, KPCA, FastICA
  • 17 technical indicators compressed & denoised
  • 70–73% directional accuracy on 1/3/5-day horizons
  • KPCA-TLBO variant proved most accurate
Code
07

Best Bike Paths — Smart Cycling Safety

ML-powered pothole detection app with community reporting, smart routing, and on-device RandomForest inference at 15ms.

FlutterDartSupabaseScikit-Learn
2025 – 2026 Polimi SE2

Key Features

  • On-device ML pothole detection — 98.7% accuracy, ~15ms
  • RandomForest on accelerometer data (SimRa Berlin dataset)
  • Community upvote/downvote verification system
  • OSRM-based safe route planning with path scores
  • Offline support, background tracking, weather alerts
Code
08

SkyItalia — AI Voice Agent "Sofia"

Multilingual AI voice agent for airline customer service — flight ops, booking management, complaint handling — with supervisor escalation. Top 15 🏆

ElevenLabsGemini 3PythonRAG
March 2026 Top 15 — ElevenLabs Hackathon

Key Features

  • Sofia (main) + Marco (supervisor) dual-agent architecture
  • 4-language voice: Italian, English, French, Spanish
  • 12 webhook tools — flights, bookings, baggage, loyalty, complaints
  • 5 RAG knowledge base docs with e5-mistral embeddings
  • 32 automated tests (LLM + tool call + simulation)
Code Try Sofia
<hackathons>

Hackathon Battles

Building under pressure, shipping under deadlines

24h

NOI Hackathon — EcoSath

SFSCON Edition 2025, South Tyrol

November 2025

Tackled the "Tech4Transparency" challenge by INFOMINDS. Built a 360° AI-powered ESG platform with IoT data automation, interactive stakeholder dashboards, Gemini AI verification, and an "Eco-Coach" gamification module.

Gemini APIIoTDashboardGamification
Team EcoSath — 4 members
6h

Solo Hackathon — StaySphere

Powered by Lovable

October 2025

First solo hackathon — built a complete vacation-rental marketplace with guest search, booking flow, 8-step host listing wizard, and live price breakdowns using natural language with Lovable.

ReactTypeScriptSupabaseLovable
Solo
48h

Sui Hackathon — DeVote

EPFL, Switzerland

September 2025

Built a decentralized, privacy-friendly voting dApp on Sui blockchain. Implemented one-person-one-vote with zkLogin, anti-double-voting nullifiers, and transparent on-chain tallies.

MoveSui SDKNext.jszkLogin
Team of 3
8h

Buildathon Milan — VoiceLog

Talent Garden, Milan — November 2025

November 2025

Built VoiceLog — an AI-powered voice journaling app. Speak your thoughts and get instant transcription, mood analysis, and searchable entries. Created in under 8 hours using Lovable.

LovableAIVoiceFull-Stack
Live Demo
Solo
🏆

ElevenLabs Hackathon — SkyItalia

Italian Hackathon League — Stage 3

March 2026

Built "Sofia" — a production-ready multilingual AI voice agent for SkyItalia Airlines on ElevenLabs Conversational AI with Gemini 3 Flash. Handles flights, bookings, baggage, complaints, and supervisor escalation across 4 languages. Placed Top 15.

ElevenLabsGemini 3PythonRAG
Code Try Sofia
Solo — Top 15 🏆
<education>

My Education

Sep 2025 – Present

MSc Computer Science and Engineering

Politecnico di Milano 🇮🇹

Currently studying · MAECI Scholar

Oct 2021 – Mar 2025

BE Information Engineering

Università degli Studi di Padova 🇮🇹

Grade: 95/110 — Thesis: "A Study on the Impact of Blockchain to Secure Federated Learning"

Mar 2018 – Mar 2020

High School Diploma — Science

St. Xavier's High School, India

Grade: 92.6/100

2004 – 2018

Matriculation Education

Venkateswar English Medium School, India

Grade: 87/100

<tutoring>

Tutoring & Teaching

Helping UniPD Information Engineering students succeed

Private Tutor

I tutor students from the Università degli Studi di Padova Information Engineering program, helping them with core subjects like Calculus and Linear Algebra. I also create YouTube crash course playlists — some demo videos are free, full courses are available through private tutoring.

Calculus 1 — Crash Course

Free Demo

Complete playlist covering limits, derivatives, integrals and more

Watch Free Demo

Linear Algebra — Crash Course

Free Demo

Vectors, matrices, eigenvalues, transformations and more

Watch Free Demo

Calculus 2 — Crash Course

Free Demo

Sequences, series, multivariable calculus and advanced topics

Watch Free Demo

Full courses available through private tutoring — get in touch for access.

<certifications>

Certifications & Credentials

Manage Kubernetes in Google Cloud

Google · May 2025

Supervised ML: Regression & Classification

DeepLearning.AI / Coursera · Nov 2023

Gemini for Data Scientists

Google · May 2025

Classify Images with TensorFlow

Google Cloud · May 2025

The LLM Course — Foundations

Hugging Face · May 2025

Data Scientist's Toolbox

Johns Hopkins / Coursera · Apr 2025

Prompt Engineering for ChatGPT

Coursera · Apr 2025

Manage Kubernetes in Google Cloud

Google · May 2025

Supervised ML: Regression & Classification

DeepLearning.AI / Coursera · Nov 2023

Gemini for Data Scientists

Google · May 2025

Classify Images with TensorFlow

Google Cloud · May 2025

The LLM Course — Foundations

Hugging Face · May 2025

Data Scientist's Toolbox

Johns Hopkins / Coursera · Apr 2025

Prompt Engineering for ChatGPT

Coursera · Apr 2025
<research>

Research & Publications

A Study on the Impact of Blockchain to Secure Federated Learning

University of Padova — March 2025

Proposes a Blockchain-Enabled Federated Learning (BCFL) framework incorporating decentralized storage via IPFS and model integrity validation through Zero-Knowledge Proofs. Evaluated across MNIST, FashionMNIST, and CIFAR-10 with enhanced traceability and robustness at minimal accuracy loss.

Blockchain Federated Learning IPFS Zero-Knowledge Proofs PyTorch
<github>

GitHub Activity

GitHub Stats

— Total Stars
— Public Repos
— Followers
— Following
GitHub Streak

Top Languages

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<contact>

Let's Connect

Have a project in mind or just want to say hi? I'd love to hear from you.

Location

Milan, Italy 🇮🇹