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Raj-Kumar-Arora/README.md

Raj Kumar Arora

Associate Architect | Senior Full Stack Engineer

.NET | Azure | Cloud Architecture | AI Engineering | Secure Enterprise Applications

Building scalable, secure, and cloud-ready enterprise solutions with modern .NET technologies, Azure, microservices, and AI-powered engineering practices.

I am a Senior Software Engineer / Associate Architect with 20 years of experience designing and delivering enterprise applications across banking, insurance, energy and IoT domains.

Currently working with HCL Technologies Poland, delivering solutions for European enterprise clients including Achmea Netherlands and Euroclear Bank Belgium.

My expertise includes:

  • Enterprise .NET development
  • Cloud-native Azure solutions
  • Microservices architecture
  • Secure API development
  • IAM & Authentication
  • System Design & Distributed Systems

🛠 Technical Expertise

Backend

.NET 10 | ASP.NET Core | C# | Web API | Python | Node.js

Frontend

Angular | TypeScript | JavaScript | React

Cloud & DevOps

Azure | Azure Functions | App Services | API Management Docker | Kubernetes | Terraform | GitHub Actions

Architecture

Microservices | Distributed Systems HLD | LLD | SOLID | Clean Architecture Design Patterns | DDD

Security

OAuth 2.0 | OpenID Connect JWT | SAML | SSO RBAC | IAM | API Security

🚀 Featured Projects

🤖 FullStack Gen AI Application

.NET Core + Angular + OpenAI

Enterprise-style AI application demonstrating:

  • LLM integration
  • Prompt engineering
  • REST API architecture
  • Angular frontend
  • Cloud-ready design

🔐 Secure API Authentication Framework

ASP.NET Core Web API Security

Implementation of:

  • OAuth 2.0
  • JWT Authentication
  • Role Based Authorization
  • Secure API Design

🏗 Engineering Focus

I enjoy solving problems around:

✓ Designing scalable distributed systems ✓ Building secure enterprise APIs ✓ Cloud modernization ✓ Legacy application transformation ✓ AI-assisted software engineering ✓ Performance optimization

📚 Currently Exploring

  • Azure Solutions Architecture
  • Cloud Native Development
  • System Design
  • Distributed Systems
  • Generative AI Engineering

🤝 Connect

LinkedIn: Raj Kumar Arora [https://www.linkedin.com/in/RajKumarArora/]

GitHub: Raj-Kumar-Arora [https://github.com/Raj-Kumar-Arora]

Pinned Loading

  1. FullStack-Gen-AI---.NET-Core-Angular-OpenAI FullStack-Gen-AI---.NET-Core-Angular-OpenAI Public

    Conversion of unstructured data from customer inputs (Audio, Video and bot-chats) to structured data for tickets/incidents using .NET Core + Angular + Open AI

    HTML

  2. QuizBuilderApp QuizBuilderApp Public

    Full-stack Quiz Management Platform built with ASP.NET Core Web API, Angular & SQL Server featuring JWT Authentication and RESTful APIs.

    C# 1

  3. ASP.NET-Core-Web-API-Authentication-and-Authorization-with-JWT ASP.NET-Core-Web-API-Authentication-and-Authorization-with-JWT Public

    Secure ASP.NET Core Web API implementing JWT Authentication, Role-Based Authorization and modern API security best practices.

    C# 2

  4. AzureFunctionApp AzureFunctionApp Public

    Azure Functions (.NET isolated worker) example demonstrating serverless HTTP APIs, dependency injection, application logging, and cloud-native development.

    C#

  5. SQL-Top-50-LeetCode-Solutions SQL-Top-50-LeetCode-Solutions Public

    SQL Server solutions for LeetCode Top SQL 50 demonstrating database fundamentals, analytical SQL, joins, and query optimization techniques.

    1