Software Development Engineer | Former SDE Intern at Zeta | ICPC Regionalist & LeetCode Guardian
I am a Computer Science & Engineering graduate from the Institute of Engineering and Technology, Lucknow (9.32 CGPA). I specialize in engineering highly secure distributed fintech platforms, applying advanced system concurrency control mechanisms, and solving complex algorithmic challenges at scale.
- 💼 Recent Milestone: Wrapped up a high-impact SDE Internship at Zeta (Directi), engineering distributed backend platforms, managing complex microservice endpoint upgrades, and rolling out modern enterprise authentication structures with zero regression.
- 👨🏫 Mentorship & Impact: Former DSA Educator at TLE Eliminators, designing technical training materials and instructing 50+ students in mathematics and algorithmic optimization.
- 🧩 Scale: Successfully cracked 1,500+ algorithmic challenges across modern competitive software engineering platforms.
| Platform | Title / Rank | Max Rating / Highlights | Profile Link |
|---|---|---|---|
| LeetCode | Guardian 👑 | Rating 2145 (Top 1.23% Globally) | Global Rank 115 (BiWeekly 137) | Profile |
| Codeforces | Expert 🔴 | Rating 1733 | Rank 531 / 32,000+ (Round 175 Div. 2) | Profile |
| CodeChef | 5-Star ⭐⭐⭐⭐⭐ | Rating 2053 | Global Rank 17 (Starters 162) | Profile |
| ICPC | 3x Regionalist 🏁 | AIR 43 (Kanpur '25) | AIR 59 (Chennai '24) | AIR 74 (Amritapuri '25) | ICPC Hub |
| Meta Hacker Cup | Round 2 Qualifier 🎯 | AIR 53 (Global Rank 729 out of 20,000+) | Certificate |
🚀 Core Languages & Query Environments
⚙️ Backend Engineering & Distributed Storage
🎨 Frontend UI, Containerization & Platforms
- Distributed Systems & Architecture: Multithreading, Thread Concurrency Controls, System Design Models, Strategy Patterns, Microservices Architecture, SOLID principles.
- Core Computing Principles: Relational Databases (DBMS), Computer Networks (TCP/IP Protocols), Unix Systems Engineering, Object-Oriented Design patterns, Information Retrieval systems.
Fintech-Grade Full-Stack Banking Simulation Engine
- Engineered an enterprise authorization matrix implementing JWT (HTTP-only cookies), Google OAuth2, BCrypt security layers, and account lock mitigation policies.
- Modeled an extensible calculation pipeline leveraging the structural Strategy Design Pattern alongside containerized Docker deployments.
- Stack: Java, Spring Boot, Spring Security, PostgreSQL, Vue.js 3, Vuex, Docker.
Reactive Async Microservice & Manifest V3 Chrome Integration
- Developed a completely reactive, non-blocking Spring WebFlux backend integrated directly into Google Gemini AI networks.
- Constructed a DOM-aware browser client extension applying Mutation Observers to inject seamless in-context workflows, reducing manual action by 40%.
- Stack: Java 21, Spring Boot, Spring WebFlux, React, Gemini AI, Material UI, Chrome Extensions API.
Designed & Maintained by Arpit Chaurasia