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nishuR31/README.md
Nishan Rajak profile header

Backend Developer · Full-Stack Builder · Student · DevOps

Dynamic engineering tagline

Profile Views Commit Activity Contribution Snake Open Source


About

Nishan Rajak

I'm a student developer from India focused on backend engineering, scalable application architecture, APIs, databases, realtime systems, DevOps, and full-stack product development.

I prefer building systems from first principles so I understand the internals rather than treating frameworks as black boxes.

  • Currently improving: JavaScript, TypeScript, backend architecture, performance, and production engineering
  • Backend: Node.js, Fastify, Express.js, REST APIs, WebSockets, webhooks
  • Data: PostgreSQL, MongoDB, MySQL, Redis, Prisma, Mongoose
  • Systems: BullMQ, queues, caching, authentication/OAuth, CLI tooling
  • Frontend: React, HTML, CSS, Tailwind CSS, JSX, TSX
  • Mobile / Edge: Flutter, Dart, React Native, ESP32 and sensor-based systems
  • DevOps: Docker, Kubernetes, GitHub Actions, Vercel, Render, Cloudflare
  • Programming background: C, C++, Java, Python, Rust
  • Development environment: Ubuntu, Kali Linux, Termux
  • Problem solving: DSA, LeetCode, algorithms, complexity analysis
  • Projects: GitHub repositories
  • Contact: [email protected]



Portfolio



LeetCode

Engineering Focus

Backend
APIs · Services
Fastify · Node.js
Data
SQL · NoSQL
Redis · PostgreSQL
Systems
Queues · Realtime
BullMQ · WebSockets
DevOps
Containers · CI/CD
Docker · GitHub Actions
Edge
IoT · Hardware
ESP32 · Flutter

Tech Stack

Languages

JavaScript TypeScript Python C C++ Java Rust

Frontend

React HTML5 CSS3 Tailwind CSS JSX TSX Lucide

Backend & APIs

Node.js Fastify Express.js Bun REST API WebSockets Webhooks Mongoose

Databases, ORM & Caching

PostgreSQL MongoDB MySQL Redis Prisma BullMQ

DevOps, Cloud & Tooling

Docker Kubernetes GitHub Actions Git GitHub Postman Vercel Render Cloudflare NPM Prettier ESLint Jest

Mobile, IoT & Edge

Flutter Dart React Native Expo ESP32 Arduino

AI, Data & Exploration

ML/Data RAG GraphRAG FAISS ChromaDB

OS & Development Environment

Ubuntu Kali Linux Termux Vim VS Code


Featured Engineering Work

ghControl

ghControl repository preview

GitHub-focused developer tooling exploring API integration, data management, caching and background processing.

Stack: Next.js · GitHub API · MongoDB · Redis · BullMQ

Repository

FoodLoop

FoodLoop project preview

Smart food monitoring and spoilage-management prototype combining IoT sensing, backend APIs and a web dashboard.

Stack: ESP32 · Sensors · Backend API · Web Dashboard

Live Dashboard

BoardVault

BoardVault repository preview

Flutter-based embedded-development knowledge app for SBCs and MCUs, backed by a web service and database layer.

Stack: Flutter · Dart · Fastify · Prisma · PostgreSQL

Repository

Ranchi Synapsters

Ranchi Synapsters repository preview

Full-stack commerce project covering product flows, backend services and payment integration.

Stack: React/Vite · Node.js · PostgreSQL · Graph

Repository

Dev Digest

Dev Digest repository preview

Maths study platform covering lessons and youtube videos of Dr.Samir Kumar.

Stack: React/Vite · Node.js

Repository

Nubloq

Nubloq repository preview

Blogging and publishing project from the broader developer-tooling and product portfolio.

Focus: Web · Backend · Database

Repository

Valor

Valor repository preview

Gym management project for gym owners.

Focus: Web · Backend · Database · Management

Repository

Shivanshirestaurantranchi

Shivansi Restaurant repository preview

Restaurant management project for owner.

Focus: Web · Backend · Database · Management

Repository

NASMR

NASMR repository preview

Project for civic engagement and reporting platform.

Focus: Web · Backend · Database · Management

Repository

Nmoh

Nmoh repository preview

Project for personal project commamd engagement and reporting platform.

Focus: Web · Backend · Database · Management

Repository

Github Recap

githubRecap repository preview

Project for my github recap engagement and reporting platform.

Focus: Web · Backend · Database · Management

Repository

Memory Web

Memory web repository preview

Project for tuger graph rag hackathon platform.

Focus: Web · Backend · Database · Management

Repository


More Projects

TuneGTR

Digital guitar tuner focused on DSP, pitch detection, YIN-based recognition and tuning analysis.

Repository

Devclip Hub

Developer-oriented project exploring useful development resources and tooling.

Repository

Ionicity

Web project trying ionic capacitor application and experimentation.

Repository

Lunarity

Web application / product experiment from the project portfolio.

Repository

Pretties

CLI/tooling project exploring developer productivity and command-line workflows.

Repository

Beat

Music beat wquilizer.

Repository

View all repositories →


LeetCode · DSA

GitHub Analytics


Contribution Activity


Portfolio & Developer Hub

Portfolio

Personal portfolio

Projects · Skills · Background

Team Hub

Team Hub

Team projects · Tools · Builds

Blog

Nubloq blog

Writing · Experiments · Development


GitHub Trophies


Community & Repository Signals

Followers Stars Repositories Last Commit


Connect

Email LinkedIn GitHub LeetCode Portfolio Nubloq


License & Policies

This profile repository is licensed under Apache 2.0 and includes repository security and contribution policies.

License Security Policy Code of Conduct


Contributors


Footer wave Backend systems · Full-stack engineering · DevOps · IoT · DSA · Open source

Pinned Loading

  1. gitignore gitignore Public

    Scripts to install gitignores...

    JavaScript

  2. hbday hbday Public

    A mail cron job that sends birthday wishes to the buddies

    JavaScript 1

  3. Nmoh Nmoh Public

    JavaScript 1

  4. githubRecap githubRecap Public

    My github recap

    TypeScript