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Harsh Joshi

@harshjoshi

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Full-stack developer building scalable Node.js and cloud-native systems.

India

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What I'm looking for

I’m looking for a role where I can build scalable backend and real-time systems using Node.js and cloud-native infrastructure. I want ownership, clean engineering practices, and a team culture that values mentorship and measurable impact.

I’m a Full Stack Developer focused on building scalable backend systems, real-time applications, and cloud-native architectures. I work with Node.js, TypeScript, and PostgreSQL, and I enjoy turning complex requirements into clean REST APIs and reliable microservices with JWT authentication and WebSockets.

In recent projects, I engineered a MERN-based DSA practice platform with 20+ problems, secure submission tracking, and user progress monitoring, including a server-side code execution pipeline integrated with the Judge0 API (5+ languages), Monaco Editor, and an AI assistant for code analysis. I also built a Next.js + TypeScript link-in-bio platform with SSR-optimized performance and real-time analytics, and I created a wallet transfer system that eliminates race conditions via atomic balance updates and guarantees full data consistency under high load—then containerised it with Docker and deployed it on AWS ECS with GitHub Actions CI/CD. I’m actively engaged in mentoring full-stack development within technical communities and I hold AWS Certified SysOps Administrator – Associate (2025) and AWS Certified Cloud & AI Practitioner (2025).

Experience

Work history, roles, and key accomplishments

CodeLoom MERN DSA Platform

CodeLoom

Aug 2025 - Oct 2025 (2 months)

Engineered a MERN DSA practice platform with 20+ problems, secure submission tracking, and user progress monitoring. Built Node.js/Express REST APIs with JWT-protected routes and integrated Judge0 for multi-language server-side code execution.

REST APIs JWT MongoDB MERN Stack Judge0 API Monaco Editor

TreeBio Link-in-Bio Platform

TreeBio

Aug 2025 - Sep 2025 (1 month)

Architected a Next.js + TypeScript link-in-bio platform with SSR-optimized load times and shareable profiles. Implemented Next.js API routes with PostgreSQL (Neon) and Prisma ORM, plus real-time analytics for engagement across three event types.

Next.js TypeScript API Routes PostgreSQL Prisma Clerk Authentication Real Time Analytics Event Tracking

ZapPay Wallet Transfer Platform

ZapPay

Built a wallet transfer platform with Express, TypeScript, PostgreSQL, and Prisma ORM, using transactions for atomic balance updates. Containerised the service with Docker and deployed to AWS ECS, setting up GitHub Actions CI/CD to ensure consistency under concurrent transfers.

TypeScript PostgreSQL Prisma Transactional Balance Updates Concurrency Docker AWS ECS GitHub Actions