Hi, I'm Gulshan Kumar 👋
Full Stack Developer · MERN Stack · Backend Engineer · DSA in C++
I build scalable web applications and love solving DSA problems. Based in Kanpur, Uttar Pradesh, India 📍. I focus on backend architecture, clean APIs, and algorithmic efficiency.
200+
DSA Solves
4+
Featured Projects
10+
Technologies
1+
Years Coding
About Me
👨💻 Who I Am
I am a backend-focused Full Stack MERN Developer specializing in secure, scalable web systems. Proficient in crafting robust REST APIs, architectural frameworks, and containerized deployment environments with a clean, high-performance visual identity.
🎓 Education
B.Tech in Computer Science & Engineering (4th Year)
Dr. Ambedkar Institute of Technology for Divyangjan, Kanpur
Deeply immersed in Data Structures & Algorithms (200+ solves), relational database modeling, systems architecture, and core software engineering methodologies.
🚀 What I'm Building
Architecting high-fidelity academic ERP platforms and complex finance dashboards like TrackerPro. Engineering secure role-based authentications, optimized MongoDB schemas, and local in-memory fallbacks for resilient systems.
Technical Skills
A recruiter-focused map of my stack, tools, and platforms
Frontend
Backend
Database & Caching
Programming
Tools & DevOps
Featured Projects
Showcasing my best work in Full Stack Development & System Architecture
Flash Chat Real-Time Secure
A full-featured, low-latency real-time chat platform built on the MERN stack. Designed with performance and security in mind, it provides seamless instant communication with sub-second latency.
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Bi-directional Socket.io communication channels -
JWT-based authentication with secure token rotations -
Dynamic user presence status & online indicators -
Optimized backend architecture for minimal latency
DR AITD College ERP REST API Role-Based
An advanced academic management ERP platform designed specifically for college systems. It structures core administrative, faculty, and student workflows into a single cohesive, secure architecture.
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Secure role-based dashboard access controls (Admin, Faculty, Student) -
Efficient relational-modeled database schemas in MongoDB -
Built-in analytics metrics tracking for grades & student reports -
Robust RESTful endpoints with unified error handling middlewares
TrackerPro Full-Stack Premium
A high-fidelity, full-stack expense tracking and financial planning dashboard. Built with a premium glassmorphic visual identity and robust backend architectures, it transforms basic expense logging into an engaging, analytical financial tool.
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Secure Access Guard & session persistence with custom glassmorphic aesthetics -
Sliding transaction selector integrated with a real-time trip planner & split calculator -
Premium Chart.js visualizations featuring adaptive color gradients & formatted tooltips -
High-fidelity CSV Blob downloads & a robust in-memory database fallback system
Personal Portfolio Modern UI Optimized
My personal digital footprint showcasing all key projects, metrics, and technical expertise. Engineered under rigid performance optimization rules targeting flawless UX.
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Responsive CSS Grid layouts designed with vanilla CSS excellence -
High Lighthouse metrics with structured semantic metadata tags -
Custom theme transitions with interactive GSAP loaders -
Highly optimized code delivery for fast client load times
Active Development & Experience
My live construction timeline, college projects, and role matching
🚀 Currently Building (Live Pipeline)
Dockerized MERN Apps
Containerizing full-stack environments utilizing multi-stage builds and Docker Compose pipelines.
AWS Deployment Pipelines
Configuring secure EC2 instances, S3 asset buckets, and automated Github Actions CI/CD pipelines.
Scalable Backend Systems
Integrating Express routing architectures with client rate limiting and memory caching layers.
DSA Speed Training
Targeting the next major milestone of 300+ problems on Leetcode and GeeksforGeeks.
System Design Studies
Analyzing High-Level Design (HLD) and Low-Level Design (LLD) architectural patterns.
Redis Integration
Configuring highly available Redis cache stores for user sessions and frequent query storage.
💼 Open to Opportunities
Actively matching roles in scaling startups, product environments, or core technical teams.
DSA & Problem Solving
My algorithmic journey and practice metrics across platforms
200+
Problems Solved
Practice Platforms
Arrays & Strings
75+ SolvedSliding window, two pointers, prefix sum, frequency mapping
Linked Lists
25+ SolvedReversal, merge sort, cycle detection, fast & slow pointers
Stack & Queue
20+ SolvedMonotonic stack, sliding window max, queue utilizing stacks
Trees & BST
20+ SolvedTraversals (In/Pre/Post/Level), LCA, diameter, views, BST operations
Graphs
15+ SolvedBFS, DFS, topological sorting, cycle detection, Dijkstra
Recursion
18+ SolvedN-Queens, backtracking subsets, permutations, tree recursions
Dynamic Prog.
12+ SolvedKnapsack, LCS, coin change, grid path, memoization & tabulation
Hashing
15+ SolvedMaps, sets, frequency count, anagram detection, custom hashers
Binary Search
10+ SolvedSearch in rotated, boundary finders, search space optimization
Let's Collaborate
Have a project in mind or want to collaborate? I'm always open to discussing new opportunities, creative ideas, or partnerships. Feel free to reach out!