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👨‍💻 Who Am I?

const ajitDev = {
  name        : "Ajit Kumar",
  alias       : "ajitdev01",
  location    : "Katihar, Bihar, India 🇮🇳",
  education   : "BCA — Cloud & Security (2025–2027)",
  portfolio   : "https://ajitdev.com",
  institute   : "Brainzima Innovation Institute, Katihar — https://brainzima.com",

  currentFocus: [
    "Production-grade Full Stack Engineering (MERN + Next.js)",
    "DevSecOps — CI/CD Pipelines, Docker, Kubernetes",
    "Cloud Infrastructure on AWS",
    "Security-first application design (OWASP, RBAC, Zero Trust)",
    "Advanced DSA & System Design",
  ],

  philosophy  : "Build Fast. Build Secure. Build Scalable.",
  goal2028    : "SDE-1 | Full Stack Developer | DevOps Engineer | Cloud Engineer",
  contact     : "[email protected]",
};

I build production-grade applications using MERN, LAMP, Next.js, REST APIs, CI/CD pipelines, Dockerized environments, and modern cloud infrastructure. My development philosophy is simple — security is a foundation, not an afterthought.


🎯 2027 Professional Snapshot

✅ Software Engineering Core

  • Data Structures & Algorithms (500+ LeetCode)
  • Object-Oriented Programming (OOP)
  • Low Level Design (LLD) & High Level Design (HLD)
  • System Design Fundamentals
  • Design Patterns (SOLID, GOF)
  • Database Design & Query Optimization
  • API Architecture (REST, WebSocket)

✅ Full Stack Development

  • Frontend: HTML5, CSS3, JS, TS, React.js, Next.js, Tailwind
  • Backend: Node.js, Express.js, PHP, Laravel, REST APIs
  • Auth: JWT, OAuth2, RBAC, Secure Sessions
  • Databases: MongoDB, MySQL, PostgreSQL, Redis
  • Tools: Postman, Git, GitHub, VS Code, IntelliJ

☁️ Cloud Engineering (AWS)

  • IAM, EC2, S3, VPC, Route53
  • ELB, Auto Scaling, RDS, ECR, ECS
  • CloudWatch, CloudTrail (Monitoring & Audit)
  • Terraform, AWS CLI, CloudFormation
  • Infrastructure as Code (IaC)

🐳 DevOps Engineering

  • Containers: Docker, Docker Compose, Multi-stage Builds
  • Orchestration: Kubernetes, Helm, Ingress, ConfigMaps, Secrets
  • CI/CD: GitHub Actions, Jenkins, GitLab CI/CD
  • Monitoring: Prometheus, Grafana, Loki
  • IaC: Terraform, AWS CloudFormation

🛠️ Full Technology Stack

💻 Languages

C C++ Java Python JavaScript TypeScript PHP

🎨 Frontend

HTML5 CSS3 React Next.js Tailwind CSS Material UI Bootstrap

⚙️ Backend

Node.js Express.js REST API JWT OAuth2

🗄️ Databases

MongoDB MySQL PostgreSQL Redis

☁️ Cloud & Infrastructure

AWS Terraform Docker Kubernetes Linux

🔄 CI/CD & DevOps

GitHub Actions Jenkins GitLab CI Git

📊 Monitoring & Observability

Prometheus Grafana Loki

🔐 Security Tools

SonarQube Trivy OWASP ZAP Snyk

📊 Data Science (Learning)

NumPy Pandas Matplotlib

🛠️ Dev Tools

VS Code IntelliJ IDEA Postman Jupyter


🏗️ Production Projects

🛒 Cloud-Native E-Commerce Platform

Full production-grade microservices app

Next.js Node.js MongoDB Redis Kubernetes AWS

  • Microservices architecture with Docker + K8s
  • CI/CD auto-deployment via GitHub Actions
  • Redis caching layer for performance
  • Prometheus + Grafana monitoring dashboard
  • Secure JWT + RBAC authentication
  • Deployed on AWS EC2 with Auto Scaling

🔐 DevSecOps CI/CD Pipeline

End-to-end secure deployment pipeline

GitHub Actions Docker Terraform SonarQube Trivy

  • SAST scanning with SonarQube
  • Container image scanning with Trivy
  • Infrastructure provisioning via Terraform
  • Kubernetes deployment with Helm charts
  • Secrets managed securely (no hardcoded creds)
  • Full audit trail with CloudTrail + CloudWatch

✅ Task Management System

Full-stack MERN app with security focus

React Express.js MongoDB

  • CRUD with role-based access control
  • JWT authentication with token refresh
  • Input sanitization (XSS / injection prevention)
  • RESTful API with rate limiting
  • Clean responsive UI with Tailwind CSS

💬 Real-Time Chat Application

WebSocket-based messaging platform

React Socket.io Node.js

  • Real-time bidirectional messaging
  • Private rooms & group channels
  • Authenticated connections (JWT via WebSocket)
  • Message persistence with MongoDB
  • Online/offline presence tracking

📂 Repository Structure

📦 ajitdev01/
│
├── 🏗️  production/
│   ├── ecommerce-cloud-native/      ← Next.js + K8s + AWS
│   └── devsecops-pipeline/          ← GH Actions + Trivy + Terraform
│
├── 🌐  full-stack/
│   ├── task-manager-mern/
│   ├── realtime-chat/
│   ├── user-dashboard/
│   └── nextjs-ad/                   ← Next.js learning repo
│
├── 🔐  security/
│   ├── secure-auth-system/
│   ├── input-validation-demo/
│   ├── api-security-practice/
│   └── owasp-top10-labs/
│
├── ☁️   cloud-devops/
│   ├── terraform-aws-infra/
│   ├── kubernetes-manifests/
│   └── docker-compose-stacks/
│
└── 📚  learning/
    ├── dsa-leetcode/                 ← 400+ problems
    ├── system-design-notes/
    └── data-science-notebooks/

🌐 Live Projects & Portfolio

Beyond personal repositories, my learning connects to real digital products through training and project exposure across the Brainzima ecosystem. These are live, working platforms — not just code samples.

🎓 CollegeSure

Education Guidance Platform

🌐 Visit Live Platform

An education-focused digital platform built to help students navigate college and course decisions through transparent, personalized guidance.

  • Honest admissions guidance
  • Personalized college & course recommendations
  • Eligibility, location & fee considerations
  • Personalized counselling & admission assistance
  • End-to-end student support

Core Principles: Student First · Transparency · Personalization · Quality Guidance

1,000+ Courses · 500+ Colleges · 15,000+ Students Guided · 24/7 Support

A digital platform of Brainzima Innovation Institute, since 2020.

💻 Rexvel Web Solutions

Digital Solutions & Web Development

🌐 Visit Website

An organization offering custom web applications, enterprise software solutions, and digital transformation services — my source of real-world project exposure.

  • Website development lifecycle
  • Project structuring & requirement understanding
  • Design-to-development implementation
  • Git/version-control workflows & debugging
  • Responsive development & performance optimization
  • Production/deployment concepts

100+ Web Solutions · 24/7 Enterprise Support

🏫 Brainzima Innovation Institute

Technology Education & Skill Hub

🌐 Visit Website

An ISO-certified computer and coding institute providing technology education, industry-relevant technical skills, and student skill development.

  • Technology & IT education
  • Programming and web development training
  • Practical, industry-oriented workflows

1,200+ Students Trained · 11+ Centers

🤖 Bifindr.com

Digital Tools & AI Discovery

🌐 Explore Platform

A curated digital platform for discovering AI software, productivity tools, and smart online utilities.

  • Digital tools discovery
  • AI software discovery
  • Productivity & utility curation

500+ Tools Indexed · Global Active Discovery

📝 Trybook.in

Exam Preparation & Testing Technology

🌐 Visit Platform

An online testing platform supporting competitive exam preparation through mock tests and practice assessments.

  • Competitive exam preparation
  • Mock tests & student practice assessments
  • Online testing technology

250+ Mock Assessments · Statewide Aspirant Reach

🌐 AJIT DEV

Developer Portfolio

🌐 Visit Portfolio

My personal developer authority site — where full-stack, cloud, and security-focused projects, along with my technical learning journey, are showcased.

  • Full Stack Development projects
  • Cloud & DevOps experiments
  • Security-focused engineering
  • Ongoing technical learning log

🌍 Real-World Development Exposure

Working alongside these platforms and training environments has given me exposure to the broader software/product lifecycle — not just isolated coding exercises:

Requirements
     ↓
Planning
     ↓
Development
     ↓
Testing
     ↓
Optimization
     ↓
Deployment
     ↓
Maintenance

This exposure includes:

  • Real website development, not just tutorial projects
  • Client-oriented requirement understanding
  • Responsive UI implementation
  • Backend/API integration
  • Debugging & issue resolution
  • Performance optimization
  • Git/version-control workflows & code review concepts
  • Deployment and production-oriented thinking

🧩 Brainzima Ecosystem

My practical exposure comes from interacting with a broader education + technology + digital product ecosystem:

Initiative Focus
Brainzima Innovation Institute Technology Education
Rexvel Web Solutions Digital Solutions & Web Development
CollegeSure Education & Admissions Guidance
Bifindr.com AI & Digital Tools Discovery
Trybook.in Exam Preparation & Testing

Note: These reflect training, project exposure, and ecosystem involvement — not ownership, founder status, or full-time employment.


📊 GitHub Statistics

Profile Overview
Streak
🔥 Contribution Streak
Languages
📊 Most Used Languages
Productive Hours
🕐 Productive Hours (IST)
LeetCode
🧩 LeetCode — 400+ Problems Solved

💚 GitHub Contribution Activity

Ajit Dev GitHub Contribution Activity

Consistency • Contribution • Growth

Building every day. Learning every day. Growing every day.


🗺️ Learning Roadmap (2024–2028)

2024 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 2028
│                                                                           │
├─ [✅] MERN Stack Mastery              ├─ [📋] Kubernetes Advanced (2026)  │
├─ [✅] Security-First Development      ├─ [📋] AWS Solutions Architect     │
├─ [✅] Git, Linux, Docker Basics       ├─ [📋] Microservices at Scale      │
├─ [✅] JWT, RBAC, OAuth2               ├─ [📋] Open-Source Contributions   │
│                                       │                                   │
├─ [🔄] AWS Cloud Practitioner (2025)  ├─ [📋] Threat Modeling (2027)      │
├─ [🔄] CI/CD with GitHub Actions      ├─ [📋] Security Auditing           │
├─ [🔄] Terraform & IaC                ├─ [📋] Capstone Project + Audit    │
├─ [🔄] Next.js App Router Mastery     ├─ [📋] SDE-1 / DevOps Role (2028) │
│                                                                           │
└───────────────────────────── ⚡ Code. Deploy. Secure. Scale. ────────────┘
Phase Year Focus Status
Foundation 2024–2025 MERN, Security Basics, Docker, Git ✅ Done
Cloud & DevOps 2025–2026 AWS, Terraform, K8s, CI/CD, Monitoring 🔄 In Progress
Specialization 2026–2027 DevSecOps, Threat Modeling, Microservices 📋 Planned
Career Launch 2027–2028 Production Projects, Portfolio, Job Search 📋 Planned

🧩 Problem Solving — DSA Mastery

Category Topics Covered Level
Arrays & Strings Sliding Window, Two Pointers, Kadane's ⭐⭐⭐⭐⭐
Linked Lists Reversal, Cycles, Merge ⭐⭐⭐⭐⭐
Trees & BST DFS, BFS, LCA, Diameter ⭐⭐⭐⭐⭐
Graphs BFS, DFS, Dijkstra, Topological Sort ⭐⭐⭐⭐☆
Dynamic Programming Memoization, Tabulation, Knapsack ⭐⭐⭐⭐☆
Greedy Algorithms Intervals, Scheduling, Huffman ⭐⭐⭐⭐☆
Binary Search Rotated Arrays, Search Space Reduction ⭐⭐⭐⭐⭐
Heaps & Priority Queues K-largest, Merge, Median Stream ⭐⭐⭐☆☆
Backtracking Permutations, N-Queens, Subsets ⭐⭐⭐☆☆

🏆 400+ LeetCode problems solved · Growing daily


🎓 Bachelor of Computer Applications (BCA)

Specialization: Cloud & Security

Duration: 2025 – 2027

Status: 🟢 Currently Enrolled

📚 Areas of Study

  • ☁️ Cloud Computing & Cloud Security
  • 🔐 Network Security & Cryptography
  • 💻 Data Structures & Algorithms
  • ⚙️ Software Engineering
  • 🗄️ Database Management Systems
  • 🐧 Operating Systems & Linux Administration
  • 🌐 Computer Networks
  • 🌍 Web Technologies
  • 🛡️ Secure Computing & Threat Modeling
  • 📐 Relational Database Design & Normalization

🏫 Brainzima Innovation Institute

Anathalaya Road, Katihar, Bihar — 854105

🏆 Institute Highlights

  • 🏅 ISO Certified Computer & Coding Institute
  • 👨‍🎓 1200+ Students Trained
  • ⭐ 5.0/5 Google Rating
  • 💼 100% Placement Assistance
  • 🧑‍💻 Web Development, Python, ADCA & DCA
  • 📞 +91-7979864304

🎯 Professional Training

Practical exposure to software development, programming fundamentals, web technologies, project implementation, and industry-oriented technical workflows.

Proud to be trained at Katihar's #1 tech institute.

🌐 Rexvel

Real-World Project Exposure

🚀 Professional Development Workflow

  • 🔀 Version control & Git workflows
  • 🌿 Team branching models
  • 🔍 Pull request & code review concepts
  • 🤝 Collaborative development practices

🛠️ Development Exposure

  • 📋 Client requirement understanding
  • 🎨 Design & implementation alignment
  • 🏗️ Project structuring & setup
  • ⚙️ Build & development workflows
  • 🐛 Debugging & issue resolution
  • 📱 Responsive & cross-browser development
  • ⚡ Performance optimization

🚀 Production Exposure

  • 🌐 Production deployment concepts
  • 🖥️ Server environment awareness
  • 🔄 Continuous deployment concepts
  • 📦 Release & delivery workflows

🎓 Amity Online

Bachelor of Computer Applications (BCA)

Specialization: Cloud & Security

Duration: 2025 – 2027

Status: 🟢 Currently Enrolled

📚 Academic Highlights

  • ☁️ Cloud & Security Specialization Coursework
  • 💻 Practical Software Development
  • 🛡️ Secure Computing & Threat Modeling
  • 🗄️ Relational Database Design & Normalization
  • 🐧 Linux OS Administration Fundamentals

🔐 Key Areas of Study

  • ☁️ Cloud Computing
  • 🔐 Cloud Security
  • 💻 Data Structures & Algorithms
  • ⚙️ Software Engineering
  • 🗄️ Database Management Systems
  • 🐧 Operating Systems
  • 🌐 Computer Networks
  • 🔒 Network Security
  • 🔑 Cryptography
  • 🌍 Web Technologies

📖 Experience Types at a Glance

To make it easy for recruiters to tell what's what:

Label What It Means
🎓 Academic BCA — Cloud & Security (Amity Online)
🧑‍💻 Practical Training Brainzima Innovation Institute
🌐 Real-World Project Exposure Rexvel, CollegeSure & related live platforms
🏗️ Portfolio Projects My own development projects (production-grade builds above)
📚 Current Learning AWS, Kubernetes, Terraform, DevSecOps, System Design

💼 Open for Opportunities

I'm actively seeking roles where I can apply and grow as:

Role Skills I Bring
SDE-1 / Software Engineer MERN, Next.js, TypeScript, System Design, DSA
Full Stack Developer MERN, LAMP, REST APIs, Responsive UI, Database Design
DevOps Engineer Docker, K8s, Terraform, CI/CD, AWS, Monitoring
Cloud Engineer AWS (EC2, S3, IAM, VPC, ECS), IaC, Auto Scaling

Format: Remote · Hybrid · Onsite  |  Type: Full-time · Internship


🤝 Connect With Me


⚡ Philosophy

"Security isn't a feature to be added later — it's the foundation everything is built upon."

🏁 Motto

Code. Deploy. Secure. Scale. Repeat.

Building systems that survive real-world traffic, failures, and attacks.


Thanks for visiting — Let's build something secure together. 🔐

⭐ From Ajit Kumar · Student Developer · Security Enthusiast · Katihar, Bihar 🇮🇳


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Passionate Full Stack Developer, Cloud Security enthusiast, and Data Science learner building modern, scalable, secure web apps and projects.

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