Abhay Upadhyay

Project SEKAI CTF · World #3 2025Codeforces Specialist

Software developer & product thinker crafting AI agents, web and Android apps — designed for real users, hardened by a security researcher's instinct.

Part engineer, part translator: I turn architecture diagrams into **business outcomes** — and meetings into shipped code.

Experience

Freelance Frontend Developer

KSS Trading Platform

Client Commission · Remote

June 2026

Engineered and deployed a responsive commercial landing page using Next.js and React, managing end-to-end hosting and delivery via Vercel.
Translated client business requirements into a production-ready UI, implementing custom asset integration and responsive HTML/CSS layouts under a strict deadline.

Achievements

Ranked #3 Worldwide on CTFtime
Project SEKAI on CTFtime
Core Player — Project SEKAI · 2025
CTF & Security
#3 in the world on CTFtime in 2025 as a core player of Project SEKAI, a top-tier competitive CTF team. Specialized in Web Exploitation, Pwn, and static binary analysis with Ghidra.
1st Place — HackSecure Hackathon
Winning Entry on Devfolio
Sponsored by MeitY & ISEA
Hackathon
Won 1st place ($100 prize) at HackSecure with Packet Pulse, a real-time on-device network defense tool built for performance and minimal battery overhead. Sponsored by MeitY & ISEA — Government of India agencies.
Crowned Specialist
Specialist — Codeforces
Competitive Programming
Active competitive programmer holding the Specialist rank — cyan on the official rating ladder — sharpening the algorithmic core behind everything I build.

Skills

s-block · Languages— Highly reactive — nothing runs without them.

d-block · AI & Backend Systems— Transition metals — catalyze every task.

p-block · Web & Frameworks— Building blocks of every interface.

f-block · Security & Analysis— Radioactive — handle with care.

…… discovering new skills

C++

C++ — s-block · Languages — Highly reactive — nothing runs without them.

Python

Python — s-block · Languages — Highly reactive — nothing runs without them.

310

TypeScript

TypeScript — s-block · Languages — Highly reactive — nothing runs without them.

410

JavaScript

JavaScript — s-block · Languages — Highly reactive — nothing runs without them.

Kotlin

Kotlin — s-block · Languages — Highly reactive — nothing runs without them.

SQL

SQL — s-block · Languages — Highly reactive — nothing runs without them.

GO — s-block · Languages — Highly reactive — nothing runs without them.

LLM APIs

LLM APIs — d-block · AI & Backend Systems — Transition metals — catalyze every task.

220

Model Context Protocol

Model Context Protocol — d-block · AI & Backend Systems — Transition metals — catalyze every task.

320

Vector Databases (RAG)

Vector Databases (RAG) — d-block · AI & Backend Systems — Transition metals — catalyze every task.

FastAPI

FastAPI — d-block · AI & Backend Systems — Transition metals — catalyze every task.

REST APIs

REST APIs — d-block · AI & Backend Systems — Transition metals — catalyze every task.

AWS

AWS — d-block · AI & Backend Systems — Transition metals — catalyze every task.

Next.js

Next.js — p-block · Web & Frameworks — Building blocks of every interface.

React

React — p-block · Web & Frameworks — Building blocks of every interface.

Vite

Vite — p-block · Web & Frameworks — Building blocks of every interface.

420

Browser Extension APIs

Browser Extension APIs — p-block · Web & Frameworks — Building blocks of every interface.

Devvit SDK

Devvit SDK — p-block · Web & Frameworks — Building blocks of every interface.

610

HTML5/CSS3

HTML5/CSS3 — p-block · Web & Frameworks — Building blocks of every interface.

723

Jetpack Compose(Android)

Jetpack Compose(Android) — p-block · Web & Frameworks — Building blocks of every interface.

…

115

Web Exploitation

Web Exploitation — f-block · Security & Analysis — Radioactive — handle with care.

223

Pwn (Binary Exploitation)

Pwn (Binary Exploitation) — f-block · Security & Analysis — Radioactive — handle with care.

Ghidra

Ghidra — f-block · Security & Analysis — Radioactive — handle with care.

Burp Suite

Burp Suite — f-block · Security & Analysis — Radioactive — handle with care.

OWASP ZAP

OWASP ZAP — f-block · Security & Analysis — Radioactive — handle with care.

610

Metasploit

Metasploit — f-block · Security & Analysis — Radioactive — handle with care.

717

Traffic Inspection

Traffic Inspection — f-block · Security & Analysis — Radioactive — handle with care.

…

Projects

AI Browser
Autonomous AI Browser Agent
GitHub
Turns natural-language tasks into real browser workflows — 40% faster execution.
An automation agent that translates natural-language tasks into actionable workflows by checking local system state via Model Context Protocol (MCP) tool calls.
Android Network Threat Engine
Packet Pulse
GitHub
1st place at the MeitY & ISEA HackSecure hackathon — on-device network transparency.
An on-device packet capture engine for Android using Kotlin and VpnService to passively intercept, route, and parse TCP/UDP traffic metadata in real time.
Devvit Asynchronous Multiplayer Engine
Void Labyrinth
Live Subreddit
An infinite multiplayer maze — 60 FPS with O(1) chunk generation.
An asynchronous multiplayer engine with an infinitely scaling procedural map layer — O(1) spatial hashing for seamless chunk generation and memory-efficient terrain rendering.

About Me

$ cat origin_story.md

I got into code the hard way. In high school, I tried training an AI agent on a PC that had no business doing it — I pushed it until the hardware gave out. Fixing it was the real first lesson.

A year later, as a college freshman, I built AI Browser — an autonomous agent born from a real frustration: the web drowns you in information, and nobody should need twenty tabs to get one thing done.

Education

Aug 2025 — 2029

National Institute of Technology, Hamirpur

B.Tech — Mathematics and Scientific Computing

CGPA: 8.78

Aug 2025 — 2029

Contact

Let's build something worth shipping.

I'm open to internships, freelance work, and interesting collaborations — especially anything involving AI agents, web, Android, or security. My inbox is always open.

Say Hello Schedule a Call

shadowasura07@gmail.com

Abhay Upadhyay

Experience

Freelance Frontend Developer

Achievements

Ranked #3 Worldwide on CTFtime

1st Place — HackSecure Hackathon

Crowned Specialist