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Backend-focused full-stack engineer & final-year B.Tech CSIT student. Building async code execution pipelines, real-time engines, and bulletproof APIs built for high scale.

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🛡️ SOA Ideathon Winner ⚡ High Concurrency </> Node.js, C++ & Java
JUDGE0
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#include <iostream> #include <vector> #include <string> // Rohit Kumar | B.Tech CSIT @ ITER Bhubaneswar (Batch '27) class RohitEngineer { public: std::vector<std::string> coursework = { "Data Structures & Algorithms (100+ LeetCode)", "System Design & Distributed Systems", "DBMS & Operating Systems", "Computer Networks" }; std::vector<std::string> stack = {"C++", "Java", "JavaScript", "Python", "Docker", "MongoDB"}; void printAchievements() { std::cout << "Winner: SOA Ideathon | SIH 2024 Finalist\n"; std::cout << "Engine: Judge0 Async Pipeline & 3-Tier Rate Limiter\n"; } }; int main() { RohitEngineer dev; dev.printAchievements(); return 0; }
Status: Accepted (0.012s, 4.2 MB) Output (Stdout)
1Winner: SOA Ideathon | SIH 2024 Finalist
2Engine: Judge0 Async Pipeline & 3-Tier Rate Limiter
3Coursework: DSA (100+ LeetCode), System Design, DBMS, OS, Networks
4Languages & Stack: C++, Java, JavaScript, Python, Docker, MongoDB

ROHIT KUMAR IS DEFINED BY

SOA IDEATHON (SIH '25)
LEETCODE (100+)
OUTLIER (AI TRAINER)
CHEGG INC.
USERTESTING

Projects

Production-focused backend & full-stack systems built around async execution, WebSockets, and secure RBAC.

Code Quest (Nexus)

Gamified Coding Platform (Team Project)
  • Designed secure XP/level system with exploit prevention and Judge0 async execution pipeline with polling.
  • Engineered clan chat, real-time leaderboards, and rate-limited submission endpoints.
  • Owned backend architecture, state synchronization, and execution queues.
Backend Engineer · Jan 2026 – Present
Stack: Node.js, Express, MongoDB, Socket.io, Judge0 API
codequest-nexus.png
Code Quest (Nexus) – Gamified Coding Platform Screenshot

TeamTrack

Task Management System (Solo Project)
  • Implemented RBAC (Admin/Member) with clean REST APIs for task and group management workflows.
  • Built real-time task status updates and team chat with secure JWT + bcrypt authentication.
  • Dual-mode auth support with httpOnly cookie and Bearer header token validation.
Full-Stack Engineer · Apr 2026 – Present
Stack: Node.js, Express, MongoDB, React, Socket.io, JWT
teamtrack.png
TeamTrack – Role-Based Task Management Platform Screenshot

Jharkhand Tourism Website (Team Project)

Full-Stack Web App (Team Project)
  • Developed responsive frontend and integrated RESTful APIs for dynamic tourism content delivery.
  • Selected as the winning project in SOA Ideathon (Smart India Hackathon SIH 2025 track).
  • Optimized assets and page speed for seamless user interaction across mobile and desktop.
Full-Stack Developer · Sep 2025 – Oct 2025
Stack: React, TailwindCSS, Node.js, Express
jharkhand-tourism.png · SOA Ideathon Winner
Jharkhand Tourism Website – SOA Ideathon SIH 2025 Winner Screenshot

Freelance Experience

Engineering roles & code evaluation benchmarks shaping core backend discipline and code quality.

Code-Quest-Nexus

Founding Backend Engineer

Dec 2025 - May 2026 · Bhubaneswar
  • Architected a gamified competitive coding platform for concurrent user battles.
  • Built Judge0 async code execution queues and real-time Socket.io 1v1 engine.
  • Implemented MongoDB atomic 3-tier sliding window rate limiter to protect endpoints.
TeamTrack

Backend Engineer

April 2026 - May 2026 · 2 months
  • Developed RBAC task management platform using JWT httpOnly cookie auth.
  • Conducted independent security audit and patched invitation auth bypass.
  • Integrated Zod edge schema validation and real-time team chat channels.
Outlier

LLM Reasoning Evaluator

Aug 2024 - Jul 2025 · 1 year
  • Evaluated 50+ LLM reasoning outputs across STEM, DSA, and RLHF alignment benchmarks.
  • Specialized in coding correctness, edge-case testing, and performance validation.
  • Maintained top-tier quality ratings across a year-long production engagement.

FAQ

Achievements, background, and engineering focus.

What are your key achievements?

Winner of the SOA Ideathon, internal hackathon winner on the road to Smart India Hackathon (SIH 2024), and 100+ Data Structures & Algorithms problems solved on LeetCode.

What certifications do you hold?

Full Stack Web Development Certification & Data Structures and Algorithms Mastery Certification.

What is your current technical focus?

Deepening distributed system design patterns, high-concurrency event loops, microservice security, and DSA algorithms that remain performant under heavy traffic load.

What technologies do you use daily?

Node.js, Express.js, MongoDB, Socket.io, React.js, JWT, Zod, Docker, C++, Java, and Git.

About

Education & background context.

Rohit Kumar presenting at SOA IdeaThon – Road to Smart India Hackathon 2025
Achievement Highlight

SOA IdeaThon Winner

Road to Smart India Hackathon 2025 · Bhubaneswar

SIH 2025 Track

Education

  • Siksha 'O' Anusandhan University (ITER), Bhubaneswar
    B.Tech CSIT · Batch 2027 · 4th Year Student
  • Holy Cross School, Bokaro Steel City
    Intermediate (Class XII) · Completed March 2022
  • Holy Cross School, Bokaro Steel City
    Matriculation (Class X) · Completed April 2020

Currently Looking For

  • Backend Engineer / Full-Stack Engineer Internship Roles.
  • Building high-scale SaaS products with global teams.
  • Open for remote or hybrid opportunities.

Contact

Get in touch for internships, backend engineering roles, or SaaS collaborations.