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ajitdev01/README.md

Typing SVG


๐Ÿ‘จโ€๐Ÿ’ป Who Am I?

const ajitDev = {
  name        : "Ajit Kumar",
  alias       : "ajitdev01",
  location    : "Katihar, Bihar, India ๐Ÿ‡ฎ๐Ÿ‡ณ",
  education   : "BCA โ€” Cloud & Security (2025โ€“2027)",
  portfolio   : "https://ajitdev.com",
  institute   : "Brainzima Innovation Institute, Katihar โ€” https://brainzima.com",

  currentFocus: [
    "Production-grade Full Stack Engineering (MERN + Next.js)",
    "DevSecOps โ€” 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     : "ajitk23192@gmail.com",
};

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 โ€” security is a foundation, not an afterthought.


๐ŸŽฏ 2027 Professional Snapshot

โœ… 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)

โœ… 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

โ˜๏ธ 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)

๐Ÿณ 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

๐Ÿ› ๏ธ Full Technology Stack

๐Ÿ’ป Languages

C C++ Java Python JavaScript TypeScript PHP

๐ŸŽจ Frontend

HTML5 CSS3 React Next.js Tailwind CSS Material UI Bootstrap

โš™๏ธ Backend

Node.js Express.js REST API JWT OAuth2

๐Ÿ—„๏ธ Databases

MongoDB MySQL PostgreSQL Redis

โ˜๏ธ Cloud & Infrastructure

AWS Terraform Docker Kubernetes Linux

๐Ÿ”„ CI/CD & DevOps

GitHub Actions Jenkins GitLab CI Git

๐Ÿ“Š Monitoring & Observability

Prometheus Grafana Loki

๐Ÿ” Security Tools

SonarQube Trivy OWASP ZAP Snyk

๐Ÿ“Š Data Science (Learning)

NumPy Pandas Matplotlib

๐Ÿ› ๏ธ Dev Tools

VS Code IntelliJ IDEA Postman Jupyter


๐Ÿ—๏ธ Production Projects

๐Ÿ›’ 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

๐Ÿ” 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

โœ… 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

๐Ÿ’ฌ 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

๐Ÿ“‚ Repository Structure

๐Ÿ“ฆ ajitdev01/
โ”‚
โ”œโ”€โ”€ ๐Ÿ—๏ธ  production/
โ”‚   โ”œโ”€โ”€ ecommerce-cloud-native/      โ† Next.js + K8s + AWS
โ”‚   โ””โ”€โ”€ devsecops-pipeline/          โ† GH Actions + Trivy + Terraform
โ”‚
โ”œโ”€โ”€ ๐ŸŒ  full-stack/
โ”‚   โ”œโ”€โ”€ task-manager-mern/
โ”‚   โ”œโ”€โ”€ realtime-chat/
โ”‚   โ”œโ”€โ”€ user-dashboard/
โ”‚   โ””โ”€โ”€ nextjs-ad/                   โ† Next.js learning repo
โ”‚
โ”œโ”€โ”€ ๐Ÿ”  security/
โ”‚   โ”œโ”€โ”€ secure-auth-system/
โ”‚   โ”œโ”€โ”€ input-validation-demo/
โ”‚   โ”œโ”€โ”€ api-security-practice/
โ”‚   โ””โ”€โ”€ owasp-top10-labs/
โ”‚
โ”œโ”€โ”€ โ˜๏ธ   cloud-devops/
โ”‚   โ”œโ”€โ”€ terraform-aws-infra/
โ”‚   โ”œโ”€โ”€ kubernetes-manifests/
โ”‚   โ””โ”€โ”€ docker-compose-stacks/
โ”‚
โ””โ”€โ”€ ๐Ÿ“š  learning/
    โ”œโ”€โ”€ dsa-leetcode/                 โ† 400+ problems
    โ”œโ”€โ”€ system-design-notes/
    โ””โ”€โ”€ data-science-notebooks/

๐ŸŒ 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 โ€” not just code samples.

๐ŸŽ“ CollegeSure

Education Guidance Platform

๐ŸŒ 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 ยท Transparency ยท Personalization ยท Quality Guidance

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

A digital platform of Brainzima Innovation Institute, since 2020.

๐Ÿ’ป Rexvel Web Solutions

Digital Solutions & Web Development

๐ŸŒ Visit Website

An organization offering custom web applications, enterprise software solutions, and digital transformation services โ€” 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 ยท 24/7 Enterprise Support

๐Ÿซ Brainzima Innovation Institute

Technology Education & Skill Hub

๐ŸŒ 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 ยท 11+ Centers

๐Ÿค– Bifindr.com

Digital Tools & AI Discovery

๐ŸŒ 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 ยท Global Active Discovery

๐Ÿ“ Trybook.in

Exam Preparation & Testing Technology

๐ŸŒ 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 ยท Statewide Aspirant Reach

๐ŸŒ AJIT DEV

Developer Portfolio

๐ŸŒ Visit Portfolio

My personal developer authority site โ€” 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

๐ŸŒ Real-World Development Exposure

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

Requirements
     โ†“
Planning
     โ†“
Development
     โ†“
Testing
     โ†“
Optimization
     โ†“
Deployment
     โ†“
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

๐Ÿงฉ 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 โ€” not ownership, founder status, or full-time employment.


๐Ÿ“Š GitHub Statistics

Profile Overview
Streak
๐Ÿ”ฅ Contribution Streak
Languages
๐Ÿ“Š Most Used Languages
Productive Hours
๐Ÿ• Productive Hours (IST)
LeetCode
๐Ÿงฉ LeetCode โ€” 400+ Problems Solved

Contribution Graph


๐Ÿ—บ๏ธ Learning Roadmap (2024โ€“2028)

2024 โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” 2028
โ”‚                                                                           โ”‚
โ”œโ”€ [โœ…] MERN Stack Mastery              โ”œโ”€ [๐Ÿ“‹] Kubernetes Advanced (2026)  โ”‚
โ”œโ”€ [โœ…] Security-First Development      โ”œโ”€ [๐Ÿ“‹] AWS Solutions Architect     โ”‚
โ”œโ”€ [โœ…] Git, Linux, Docker Basics       โ”œโ”€ [๐Ÿ“‹] Microservices at Scale      โ”‚
โ”œโ”€ [โœ…] JWT, RBAC, OAuth2               โ”œโ”€ [๐Ÿ“‹] Open-Source Contributions   โ”‚
โ”‚                                       โ”‚                                   โ”‚
โ”œโ”€ [๐Ÿ”„] AWS Cloud Practitioner (2025)  โ”œโ”€ [๐Ÿ“‹] Threat Modeling (2027)      โ”‚
โ”œโ”€ [๐Ÿ”„] CI/CD with GitHub Actions      โ”œโ”€ [๐Ÿ“‹] Security Auditing           โ”‚
โ”œโ”€ [๐Ÿ”„] Terraform & IaC                โ”œโ”€ [๐Ÿ“‹] Capstone Project + Audit    โ”‚
โ”œโ”€ [๐Ÿ”„] Next.js App Router Mastery     โ”œโ”€ [๐Ÿ“‹] SDE-1 / DevOps Role (2028) โ”‚
โ”‚                                                                           โ”‚
โ””โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€ โšก Code. Deploy. Secure. Scale. โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”˜
Phase Year Focus Status
Foundation 2024โ€“2025 MERN, Security Basics, Docker, Git โœ… Done
Cloud & DevOps 2025โ€“2026 AWS, Terraform, K8s, CI/CD, Monitoring ๐Ÿ”„ In Progress
Specialization 2026โ€“2027 DevSecOps, Threat Modeling, Microservices ๐Ÿ“‹ Planned
Career Launch 2027โ€“2028 Production Projects, Portfolio, Job Search ๐Ÿ“‹ Planned

๐Ÿงฉ Problem Solving โ€” DSA Mastery

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

๐Ÿ† 400+ LeetCode problems solved ยท Growing daily


๐ŸŽ“ Bachelor of Computer Applications (BCA)

Specialization: Cloud & Security

Duration: 2025 โ€“ 2027

Status: ๐ŸŸข Currently Enrolled

๐Ÿ“š Areas of Study

  • โ˜๏ธ Cloud Computing & Cloud Security
  • ๐Ÿ” Network Security & Cryptography
  • ๐Ÿ’ป Data Structures & Algorithms
  • โš™๏ธ Software Engineering
  • ๐Ÿ—„๏ธ Database Management Systems
  • ๐Ÿง Operating Systems & Linux Administration
  • ๐ŸŒ Computer Networks
  • ๐ŸŒ Web Technologies
  • ๐Ÿ›ก๏ธ Secure Computing & Threat Modeling
  • ๐Ÿ“ Relational Database Design & Normalization

๐Ÿซ Brainzima Innovation Institute

Anathalaya Road, Katihar, Bihar โ€” 854105

๐Ÿ† Institute Highlights

  • ๐Ÿ… ISO Certified Computer & Coding Institute
  • ๐Ÿ‘จโ€๐ŸŽ“ 1200+ Students Trained
  • โญ 5.0/5 Google Rating
  • ๐Ÿ’ผ 100% Placement Assistance
  • ๐Ÿง‘โ€๐Ÿ’ป Web Development, Python, ADCA & DCA
  • ๐Ÿ“ž +91-7979864304

๐ŸŽฏ 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.

๐ŸŒ Rexvel

Real-World Project Exposure

๐Ÿš€ Professional Development Workflow

  • ๐Ÿ”€ Version control & Git workflows
  • ๐ŸŒฟ Team branching models
  • ๐Ÿ” Pull request & code review concepts
  • ๐Ÿค Collaborative development practices

๐Ÿ› ๏ธ Development Exposure

  • ๐Ÿ“‹ Client requirement understanding
  • ๐ŸŽจ Design & implementation alignment
  • ๐Ÿ—๏ธ Project structuring & setup
  • โš™๏ธ Build & development workflows
  • ๐Ÿ› Debugging & issue resolution
  • ๐Ÿ“ฑ Responsive & cross-browser development
  • โšก Performance optimization

๐Ÿš€ Production Exposure

  • ๐ŸŒ Production deployment concepts
  • ๐Ÿ–ฅ๏ธ Server environment awareness
  • ๐Ÿ”„ Continuous deployment concepts
  • ๐Ÿ“ฆ Release & delivery workflows

๐ŸŽ“ Amity Online

Bachelor of Computer Applications (BCA)

Specialization: Cloud & Security

Duration: 2025 โ€“ 2027

Status: ๐ŸŸข Currently Enrolled

๐Ÿ“š Academic Highlights

  • โ˜๏ธ Cloud & Security Specialization Coursework
  • ๐Ÿ’ป Practical Software Development
  • ๐Ÿ›ก๏ธ Secure Computing & Threat Modeling
  • ๐Ÿ—„๏ธ Relational Database Design & Normalization
  • ๐Ÿง Linux OS Administration Fundamentals

๐Ÿ” Key Areas of Study

  • โ˜๏ธ Cloud Computing
  • ๐Ÿ” Cloud Security
  • ๐Ÿ’ป Data Structures & Algorithms
  • โš™๏ธ Software Engineering
  • ๐Ÿ—„๏ธ Database Management Systems
  • ๐Ÿง Operating Systems
  • ๐ŸŒ Computer Networks
  • ๐Ÿ”’ Network Security
  • ๐Ÿ”‘ Cryptography
  • ๐ŸŒ Web Technologies

๐Ÿ“– Experience Types at a Glance

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

Label What It Means
๐ŸŽ“ Academic BCA โ€” Cloud & Security (Amity Online)
๐Ÿง‘โ€๐Ÿ’ป Practical Training Brainzima Innovation Institute
๐ŸŒ Real-World Project Exposure Rexvel, CollegeSure & related live platforms
๐Ÿ—๏ธ Portfolio Projects My own development projects (production-grade builds above)
๐Ÿ“š Current Learning AWS, Kubernetes, Terraform, DevSecOps, System Design

๐Ÿ’ผ 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 ยท Hybrid ยท Onsite ย |ย  Type: Full-time ยท Internship


๐Ÿค Connect With Me


โšก Philosophy

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

๐Ÿ Motto

Code. Deploy. Secure. Scale. Repeat.

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


Thanks for visiting โ€” Let's build something secure together. ๐Ÿ”

โญ From Ajit Kumar ยท Student Developer ยท Security Enthusiast ยท Katihar, Bihar ๐Ÿ‡ฎ๐Ÿ‡ณ


Made with โค๏ธ in India Maintained Last Updated

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