profileimage.
available for work
// hello, world

Hi, I'm Sagar Joshi Full Stack Developer

I build scalable web applications with Node.js, Express & NestJS. Passionate about clean architecture, robust APIs, and turning ideas into real products.

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// about me
Who I am
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I’m a full-stack developer focused on backend engineering and scalable systems. I build real-world applications — from REST APIs to complete products with efficient databases and clean user interfaces.

I enjoy working across the stack, with a strong emphasis on system design, performance, and reliability. Recently, I’ve been exploring AI-driven applications and building projects that solve practical problems.

Outside of coding, I enjoy exploring mountain trails and reading about system design.

Node.js REST API NestJS Express JavaScript HTML / CSS Databases
// skills
Tech stack
⚙️

Backend

Node.js NestJS Express Middleware REST APIs TypeScript Authentication
🗄️

Databases

PostgreSQL MongoDB CosmosDB Aggregate pipelines Redis MySQL
🌐

Frontend

HTML CSS JavaScript
🛠️

Tools

Git Docker Linux Postman Burpsuite
// projects
Things I've built
🚀 GitHub ↗

Project One

A full-stack app with NestJS backend, JWT auth, and PostgreSQL. Built for real-time data processing.

NestJS PostgreSQL JWT
🛠️ GitHub ↗

Project Two

REST API service built with Express.js. Features rate limiting, caching with Redis, and full docs.

Express Redis Node.js
📦 GitHub ↗

Project Three

CLI tool for automating deployment workflows. Written in JavaScript with shell integrations.

JavaScript CLI Shell
🔐 GitHub ↗

Project Four

Auth microservice with OAuth2, refresh tokens, and role-based access control using NestJS.

NestJS OAuth2 RBAC
// experience
Work history
2025 — present

Backend Developer

Tata Consultancy services

Built and maintained REST APIs, optimized database queries, and worked on microservices architecture using NestJS and PostgreSQL.

2024 — 2025

Developer

Corp8.ai

Developed Express.js services, handled frontend integrations, and collaborated on full-stack features for production apps.

// blog
Latest posts
// contact
Let's work together

Have a project in mind, a role to fill, or just want to say hi? I'm always open to interesting conversations.