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MSc · University of Leeds · 2025

KARTAVYA SONAR

Full Stack Developer & AI Engineer
Python · Node.js · React · Hugging Face · LLMs
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Full Stack Dev · Python Backend · LLM Integration · NLP Research · React · REST APIs · PostgreSQL · MSc Leeds · Open to Work · Full Stack Dev · Python Backend · LLM Integration · NLP Research · React · REST APIs · PostgreSQL · MSc Leeds · Open to Work ·
01 — About

Who I Am

Full-stack developer and MSc Advanced Computer Science graduate from the University of Leeds (Russell Group), graduated with Merit.

I build and ship real products — from REST APIs and React frontends to integrating LLMs into applications and running NLP pipelines on real-world datasets.

Currently diving deep into Generative AI with LangChain and Hugging Face, extending my existing experience with Transformer-based models. Looking for full-stack, Python backend or AI/ML roles — India or internationally.

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Tech Stacks
University of Leeds
MSc Advanced Computer Science — Merit
Russell Group · Sept 2024 – Sept 2025
GGSIPU Delhi
B.Tech Computer Science — GPA 8.24
Sept 2021 – Jun 2024
Maharashtra State Board of Technical Education
Diploma in Computer Technology — 87.09%
MSBTE · 2018 – 2021
SSC (10th Standard)
Secondary School Certificate
Maharashtra State Board · 2018
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Generative AI with LangChain & Hugging Face
Udemy · Mar 2026 — In Progress
☁️
Introduction to Data Analytics in Google Cloud
Google Cloud · Dec 2024
02 — Skills

Technical Stack

Languages
PythonJavaScript SQLJavaC++
Backend
Node.jsExpress.js FastAPIFlask REST APIsJWT bcryptPydantic
Frontend
React.jsNext.js ViteHTML5 CSS3ES6+
Databases
PostgreSQLMongoDB SQLiteMySQL Mongoose
AI / NLP
Hugging FaceBERTopic Groq LLMLangChain Scikit-learnPandas PRAW
Tools & Infra
GitDocker LinuxVercel RenderRailway PostmanAWS
03 — Projects

What I've Built

Research · MSc · University of Leeds
NLP Analysis of UK Immigration Discourse
End-to-end NLP pipeline analysing 1,098 Reddit posts using BERTopic and Hugging Face Transformers. Achieved NPMI coherence score of 0.55 across 10 discourse themes. Collaborated with Migrant Voice & Open Rights Group.
PythonBERTopic Hugging FacePRAW StreamlitGoEmotions DistilRoBERTaPandas
  • Applied BERTopic for topic modeling and two Transformer-based emotion detection models for comparative sentiment analysis
  • Achieved NPMI coherence of 0.55 identifying 10 distinct discourse themes
  • Built interactive Streamlit dashboard linking topics to UK legislation via fuzzy semantic matching
  • Collaborated with Migrant Voice and Open Rights Group on research findings
GitHub →
🌍
Live · AI · Full Stack
WanderPlan
AI travel planner powered by Groq Llama 3.3 70B with interactive maps, PWA support, calendar export, voice narration and cost estimates for 40+ countries. $0/month infra.
ReactNode.js PostgreSQLGroq LLM VitePWA
Live ↗ GitHub
click for details →
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Live · Full Stack · Auth
FinFlow
Personal finance tracker with React + Node.js/Express REST API. JWT auth, bcrypt, normalised 4-table SQLite schema, budget tracking with live progress indicators. CI/CD via GitHub.
React.jsNode.js ExpressSQLite JWTRailway
Live ↗ GitHub
click for details →
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Full Stack · Next.js · Payments
Ecommerce Web App
Full-stack ecommerce with product browsing, cart, PayPal payment integration and admin dashboard for product, category and user management. JWT auth and order history.
Next.jsNode.js MongoDBMongoose JWTPayPal API
GitHub
click for details →
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AI · Computer Vision · NLP
Emotion Recognition AI Chatbot
Conversational AI detecting emotion via webcam using OpenCV face recognition, responding via TF-IDF topic extraction and speech recognition. MSBTE final year project.
PythonOpenCV TFLearnTF-IDF
GitHub
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Something with LangChain
Generative AI · In Progress
04 — Experience

Where I've Worked

Backend development on a real system managing live student data, building APIs used in day-to-day operations.
SachiTech
Oct 2023 – Jun 2024
Backend Developer Intern · Nashik, India · Remote
  • Worked on the backend of a Student Management System managing 50+ students across batches, courses and fee cycles.
  • Built RESTful API endpoints using Python and FastAPI for student registration, batch assignment, enrollment and fee tracking.
  • Designed PostgreSQL database schema across 5 tables with foreign key constraints and normalised relationships.
  • Integrated Pydantic-based request validation across all routes to enforce data integrity and return structured error responses.
  • Tested endpoints with Postman throughout development and coordinated with frontend team on request/response formats.
05 — Contact

Let's Work Together

Open to full-stack, Python backend and AI/ML roles — India and internationally. Feel free to reach out directly.
✉ 
Competitive Programming
LeetCode Codeforces CodeChef HackerRank HackerEarth
kartavya@portfolio ~ %
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