Full-Stack .NET & React Developer

Hi, I'm Sani Kumar

And I’m a

Aspiring full-stack developer merging backend logic with frontend finesse. I build clean, high-performance web applications that solve real problems and look great doing it.

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Portrait of developer Sani Kumar

2+

Years of
Learning

12+

Projects
Completed

...

GitHub
Stars Earned

Sani working on a laptop in a developer setup

About Me

Full-Stack Developer

I believe in the power of clean code and intuitive design. For me, development isn't just about making things work; it's about building solutions that are scalable, maintainable, and a pleasure to use.

My mission is to grow as a developer and contribute to meaningful projects. I focus on C#, .NET, React, and SQL, and I enjoy working in teams that ship impactful, real-world applications.

Let's Talk

My GitHub Activity

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Public Repositories

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Followers

My Latest Repositories

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My Skills

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React .NET JavaScript C# SQL Server HTML5 CSS3 Git Figma MongoDB Docker REST APIs

Frontend

  • React.js
  • JavaScript (ES6+)
  • HTML5
  • CSS3
  • Ethers.js (Web3)

Backend

  • C#
  • .NET Core & .NET 8
  • RESTful APIs
  • Solidity (Web3)
  • Node.js (Basic)

Databases

  • SQL Server
  • MongoDB

Tools & Other

  • Git & GitHub
  • Docker (Basic)
  • Figma
  • Hardhat (Web3)
.NET 8 React C# SQL Server Docker MongoDB GitHub

My Services

Backend Development

Robust, scalable, and secure server-side logic built with modern frameworks.

C# & .NET Core RESTful APIs SQL Server

Web Development

Modern, responsive, and blazing-fast websites that look great on any device.

React.js JavaScript HTML5/CSS3

UI / UX Design

User-centric designs that are both beautiful and intuitive to use.

Figma Prototyping Accessibility

Latest Projects

Full-Stack E-Commerce Project UI screenshot

Full-Stack E-Commerce

React & .NET

Cloud-Native Inventory API dashboard

Cloud-Native Inventory API

Backend (.NET 8)

AI Sentiment Analyzer chart visualization

AI Sentiment Analyzer

React & AI

Web3 NFT minting dApp interface

NFT Minting dApp

React & Web3

.NET Blog Engine API demo

.NET Blog Engine API

Backend (.NET 8)

React Movie Finder application results page

React Movie Finder

React & API

Selected Case Studies

Cloud-Native Inventory API

.NET 8 • Docker • SQL Server

Designed and built a scalable inventory API that runs in containers, supports thousands of items, and is ready for production workloads.

  • Implemented clean REST architecture with versioned endpoints.
  • Optimized queries and indexes for fast inventory lookups.
  • Containerized the API and database for repeatable deployments.

React Weather App

React • OpenWeather API

Built a responsive weather dashboard that surfaces real-time conditions and forecasts using a third-party API.

  • Debounced API calls to keep the UI fast and API usage low.
  • Implemented error states and loading skeletons.
  • Optimized bundle size and lazy-loaded icon sets.

My Journey

July 2025

Software Developer Intern

Countrees AI Technologies

Developed and maintained backend systems using C# and .NET, focusing on API development and database management.

Jan 2025 - June 2025

Software Developer Intern

Techoctanet Services Pvt Ltd

Implemented Advanced Data Structures & Algorithms. Built responsive front-ends using HTML, CSS, JS.

2023 - 2025

Master of Computer Application

Noida Institute of Engineering

Specialized in advanced software development, cloud computing, and backend systems architecture.

2019 - 2023

Bachelor of Computer Application

Babasaheb Bhimrao Ambedkar Bihar University

Built a strong foundation in programming, databases, and software development principles.

2019

Intermediate - Science

Bihar School Examination Board

Focused on Science and Mathematics, building analytical and problem-solving skills.

How I Work

01

Discover

Understand the problem, constraints, and success metrics.

02

Design

Draft flows, architecture, and UI with feedback loops.

03

Build

Implement clean, tested code across backend APIs and frontend interfaces.

04

Ship & Iterate

Deploy, observe, and iterate based on real usage and data.

Client Testimonials

Profile photo of John Doe

John Doe

Project Manager

“Sani delivered a clean, responsive website right on schedule and communicated clearly throughout the project.”

Profile photo of Jane Smith

Jane Smith

UX Designer

“His frontend skills are excellent. Sani writes clean code and has a strong eye for detail and accessibility.”

Profile photo of Mike Johnson

Mike Johnson

Startup Founder

“Sani helped build our landing page. The site is fast, looks great on mobile, and improved our engagement.”

Quick Answers

Are you open to internships or full-time roles?

Yes, I am actively looking for full-time opportunities and impactful internships in backend or full-stack roles.

What technologies do you prefer?

On the backend, C# and .NET 8 with SQL Server. On the frontend, React, TypeScript, and modern CSS layouts.

Do you take freelance work?

Yes, for well-scoped projects where I can own the backend, API design, and UI implementation.

Let's Talk

Available for Work

I'm currently seeking new opportunities and creative projects. Let's build something amazing together.

Hire Me