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Marshmellow31/README.md
Harshil Patel Banner

Typing SVG

I engineer responsive, secure digital products bridging intuitive user interfaces with resilient architecture.


Portfolio LinkedIn Email Profile Views


Location Education Status


🧑‍💻 About Me

I am a Computer Science & Engineering undergraduate at IIIT Vadodara (2024–2028) with a focus on end-to-end web product engineering, cloud backends, and algorithmic problem-solving.

  • 🚀 Full-Stack Engineering: Specializing in React, Next.js, and Svelte ecosystems, building high-performance SPAs/PWAs with real-time synchronization, strict schema validation, and offline-first resilience.
  • 🛡️ Applied AI & Research: Integrating multimodal LLMs (Gemini Vision OCR) into real-world tools, and conducting simulation-driven Counter-UAS research on GNSS spoofing detection and collision-conscious drone clearance.
  • 🧩 Algorithmic Foundations: Practicing data structures and algorithms in C++, focusing on systematic pattern recognition, complexity bounds, and clean implementation.

🌟 Featured Projects

🏆 Podium

Multi-tenant challenge & contest management platform with configurable forms, role-based access control, multi-criteria judging workflows, live leaderboards, automated certificate generation, audit trails, and offline-ready PWA support.

TS React Firebase Zod Vitest

View Code →  |  Live Demo →

Group expense management PWA featuring automated receipt bill scanning powered by Gemini Vision OCR, itemized splitting, real-time shared ledger sync, debt graph simplification, and native one-tap UPI settlement links.

React Gemini Redux Firebase UPI

View Code →  |  Live Demo →

⏱️ Ascend

Gamified productivity & habit tracker built with Svelte 5. Features RPG-style level & XP progression, Pomodoro focus sessions, long-horizon GitHub-style activity heatmaps, keyboard-driven navigation, and offline PWA capability.

Svelte Vite Firebase PWA

View Code →  |  Live Demo →

Official corporate showcase portal for a premier regional real estate developer. Delivered modern responsive project showcases, interactive galleries, downloadable brochure delivery, and micro-interactions.

Next.js TS Tailwind Motion

View Code →  |  Live Site →

A hands-on implementation suite covering core machine learning pipelines from fundamental principles: exploratory data analysis, data cleansing, mathematical preprocessing, model training, and performance metrics across interactive Jupyter notebooks.

Python scikit-learn pandas Jupyter

View Code →


💼 Experience & Client Work

  • Web Development Intern · Bhumi Developers / BD Buildcon (May 2026 – July 2026)
    • Engineered and launched the official Bhumi Developers web portal and BD Buildcon industrial platform.
    • Implemented responsive portfolio galleries, downloadable content pipelines, employee-facing workflows, and optimized assets for mobile speed.
  • Freelance Product Engineering (2025 – Present)
    • Designed and shipped tailored commercial web experiences for clients including PickleRage, Mann Beauty Studio, Hare Krishna Restaurant, and Taste of Punjab.
    • Focused on booking systems, administrative data portals, real-time customer journeys, and SEO architecture.

🛰️ Research Focus: Counter-UAS

Conducting simulation-backed research on defensive algorithms for autonomous aerial swarms:

  • RAC-SRPL: Randomized authenticated anchor audits designed to detect formation-preserving GNSS spoofing attacks and tightly bound absolute swarm displacement.
  • VERGE-CUAS: Uncertainty-aware, collision-conscious trajectory planning and clearance for partially responsive drone swarms inside restricted perimeters.
  • Methodology: Strict computational verification through seeded Monte Carlo simulations (including an extensive 7,100-trial experimental study), maintaining clear demarcation between simulation boundaries and hardware validation claims.

🛠️ Tech Stack & Tooling

Languages

Languages

Frontend & Frameworks

Frontend

Backend, Cloud & Databases

Backend & Cloud

Tools, DevOps & Testing

Tools

Specialized Architecture & Libraries: TanStack Query · Zod Validation · Vitest · Framer Motion · Gemini Vision Multimodal · Firestore Security Rules · PWA Offline Caching · Three.js


⚡ Problem Solving & Engineering Velocity

LeetCode Profile (Harshil3105)

LeetCode Stats
Commit Streak & Velocity

GitHub Streak

Competitive Programming Handles

LeetCode GeeksforGeeks HackerRank CodeChef


Contribution Graph Journey

Contribution Snake

🎓 Education & Activities

  • B.Tech, Computer Science & Engineering — Indian Institute of Information Technology Vadodara (2024 – 2028)
  • Technical Committee Member — IIITV-ICD (June 2025 – May 2026)
  • Campus Ambassador — Techfest, IIT Bombay (July – December 2025)
  • Artificial Intelligence Workshops — Techfest, IIT Bombay (2025) and Techfest × GUVI-HCL (2024)

Let's connect & build something impactful.

Portfolio LinkedIn Email

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  1. PayMatrix PayMatrix Public

    JavaScript

  2. Smart-AC-Dashboard Smart-AC-Dashboard Public

    C++

  3. Portfolio-Website Portfolio-Website Public

    JavaScript

  4. meetkapadia1710-tech/PickleRage_Booking meetkapadia1710-tech/PickleRage_Booking Public

    TypeScript 1

  5. bhumi-developers bhumi-developers Public

    TypeScript 1

  6. Podium Podium Public

    TypeScript