Full stack .NET, cloud, desktop, automation, and product systems

I build real business software across web, desktop, cloud, devices, and operations.

I am Raj Narayan Gupta, a developer with 5+ years of experience shipping systems with .NET, microservices, WPF, WinForms, React, MERN, MAUI, React Native, Python automation, RabbitMQ, BullMQ, SignalR, DevOps, and cloud infrastructure.

Explore my work Open package docs

Public repos: 30
Experience: 5+ yrs
Latest pkg: 2.1.7

Bus OBU live tracking over TCP/IP
ATM kiosk device orchestration
RFID inventory with offline recovery
Microservices + DevOps + cloud delivery

Systems mindset

From hardware devices to high-scale web apps

I work close to the business problem: payment integrations, CRM/ERP workflows, live tracking, kiosks, dashboards, migrations, Linux/VPS management, Microsoft 365, and production performance tuning.

Desktop

WPF + WinForms

Cloud

AWS + Azure

Featured systems

Business-heavy engineering, not just demo apps

View all work

Live mobility

Bus tracking system

OBU-based TCP/IP tracking, live map movement, fleet visibility, and video visualization for operations teams.

Device software

ATM kiosk system

Genmega bill acceptor, cash dispenser, receipt printer, card readers, camera recording, and secure workflows.

Offline-first

RFID inventory

RFID-based inventory management with offline support, crash recovery, sync flows, and resilient desktop operations.

.NET architecture

Microservices, DI, design patterns, API design, performance, SignalR, RabbitMQ, and scalable backends.

DevOps and cloud

AWS SES, ECS, ECR, ALB, EC2, S3, Route 53, VPC, bastion, RDS migrations, GitHub Actions, Jenkins, and Azure App Services.

Frontend and apps

React, MERN stack, MAUI, React Native, WPF, WinForms, CRM, ERP, dashboards, and integration-heavy UI.

Operations

Linux, VPS management, MinIO, Microsoft 365, automation, migrations, monitoring, and production support.

Origin and interests

Curiosity has always been my real classroom.

I love songs, science fiction, stories, history, computers, and the feeling of building something that did not exist yesterday.

The kid who kept breaking things to understand them

A lot of my learning did not happen only through classrooms. While others followed the usual path, I gave most of my time to computers, explored operating systems, tested ideas, and slowly learned how software and devices work from the inside.

Failed experiments became fuel

Many early experiments did not work perfectly, but each one pushed me into a new question, a new tool, and a new direction.

Three childhood dreams

Scientist, astronaut, or software engineer. Tech became the place where all three dreams could still live: discovery, imagination, and building useful systems.

Today

I am fully dedicated to technology because it is what I love most. My hobby is creating innovative things, and when I build, I put in 100%.