Harsh Sandhu

Product Engineer

Product Engineer with 5+ years of experience building SaaS platforms, internal tools, and customer-facing products across education, healthcare, and enterprise domains. Strong in React, Next.js, TypeScript, Node.js, and AWS, with a track record of shipping scalable features, improving performance, and working across frontend, backend, and product decisions.

Skills

Frontend
React, Next.js, TypeScript, React Native, Expo, Tailwind CSS, Material UI
Backend
Node.js, Express, GraphQL, REST APIs, Python, Rust
Cloud & Data
AWS Lambda, AppSync, DynamoDB, S3, Cognito, PostgreSQL, MongoDB
Tools
Docker, GitHub Actions, Playwright, Jest, Cypress, LaunchDarkly, PostHog, Git

Experience

React Expert

Aug 2024 – Present

Magic EdTech · Noida, India (Hybrid)

  • Full-stack development (React, TypeScript, AWS AppSync, DynamoDB) for Spear Education, serving 50k+ dental professionals.
  • Implemented PostHog analytics and LaunchDarkly for A/B testing and controlled feature rollouts.
  • Optimized frontend performance, reducing initial page load time by 35% through code splitting and lazy loading.
  • Built customer ordering and internal dashboard for a restaurant platform managing 1,000+ weekly orders.
  • React
  • TypeScript
  • AWS AppSync
  • DynamoDB
  • PostHog
  • LaunchDarkly

Sr. Frontend Engineer

Nov 2022 – Apr 2024

Dhan AI · Remote

  • Built inventory and staff management workflows for an enterprise SaaS platform used by Ziply Fiber.
  • Developed Node.js/Express APIs handling 10,000+ daily requests with average response times under 200ms.
  • Delivered real-time tracking, reporting, and role-based access, reducing stock discrepancies by 60%.
  • Integrated third-party procurement APIs, cutting manual processing time by 45%.
  • React
  • Node.js
  • Express
  • TypeScript

Frontend Developer

Feb 2022 – Dec 2022

Pragyaware Informatics Pvt. Ltd. · Hybrid

  • Developed responsive React applications and reusable UI components.
  • Collaborated with design and backend teams to build accessible, user-friendly interfaces.
  • Optimized frontend performance via lazy loading, reducing load times by 40%.
  • React
  • JavaScript
  • CSS

Projects

TinkerSim

2024

Interactive electronics learning and simulation platform focused on visual circuit building and future microcontroller workflows, including Arduino-style compilation.

  • Next.js
  • Rust

MoodSync

2024

Mood-adaptive audio web app featuring dynamic sound generation, real-time controls, and personalized presets.

  • Next.js
  • Web Audio API

Draw

2023

Collaborative whiteboard app with real-time canvas interactions, shape editing, and export support.

  • React
  • Canvas API

Education

B.Tech in Artificial Intelligence

2019 – 2022

CT University · Punjab, India

Diploma in Computer Science

2016 – 2019

GNE · Punjab, India

Last updated: March 2026