Hi, I'm Harsh Singh

I build full-stack systems that {scale} — from ad-tech platforms to playful web experiments.

AI-powered tools, tight UX, and production-grade infra—shipping products people actually use.

5+

Years shipping production software

3

Live side projects on the web

37%

MoM lift on flagship campaign work

Experience

Where I've shipped

  1. Fullstack Engineer-2

    Criteo · Gurgaon, India

    Apr 2025 – Present

    • Led a client-facing campaign management platform: UI workflows for advertisers to configure projects and trigger automated budget optimization.
    • Built a scalable Angular and TypeScript configuration system for complex advertiser state and multi-project navigation.
    • Owned self-hosted n8n on AWS: EKS, Kubernetes configs, DNS, and ACM certificates.
    • Shipped event-driven notifications and reporting with NestJS and Nodemailer for stakeholder alerts and execution logs.
    • Technical lead for Agentic Factory (Dust, Glean, n8n); led Helm-based migration from v1 to v2 on Kubernetes.
    • Contributed to 37% MoM improvement in campaign performance and 3× better budget pacing via UI-driven scheduler orchestration.
  2. Fullstack Engineer-1

    Criteo · Gurgaon, India

    Jan 2023 – Apr 2025

    • Developed and scaled Retail Media JS (RMJS) for high-performance ad placements across 100+ production sites for 5+ major clients.
    • Built Gerrit–Slack monitoring with Node.js and TypeScript for repository changes and automated PR notifications.
    • Enhanced MyWeekly reporting with resilient APIs and Angular/NestJS frontends for 50+ concurrent internal teams.
  3. Application Development Analyst

    Accenture · Hyderabad, India

    Aug 2021 – Jan 2023

    • Delivered features for Intel Web Order Management (WOM): responsive B2B e-commerce UI with Angular and SAP Hybris.
    • Raised Google Lighthouse score from 30% to 100% via accessibility work and advanced Kendo Grids for data visualization.
    • Resolved 300+ UI and functional defects (~12% of project issue volume) while meeting enterprise quality standards.

Services

How I can help

  • 1

    Full-stack platforms

    End-to-end features across Angular, React, Next.js, and NestJS—clear state modeling, resilient APIs, and UI that stays fast under load.

  • 2

    Cloud & reliability

    AWS, Kubernetes, Helm, and observability-minded delivery so services stay deployable, measurable, and easy to operate.

  • 3

    AI-assisted products

    Practical LLM workflows (OpenAI, LangChain, n8n) with guardrails—tools that feel helpful, not gimmicky.

About me

I'm Harsh — a software {engineer} who cares about outcomes.

I focus on end-to-end ownership: advertiser-facing workflows, resilient services, and production infrastructure on AWS and Kubernetes. Outside of work, I like shipping small, sharp web apps—tools that mix UX, audio or game data, and modern AI APIs.

Skills

  • TypeScript

    Strong typed applications, shared API types, and reliable cross-stack development.

  • React / Next.js

    Modern web interfaces, performance-first pages, and component-driven UX.

  • Angular

    Enterprise UI patterns, scalable modules, and structured application architecture.

  • Node / NestJS

    Backend services, API orchestration, and event-driven workflows.

  • AWS & Kubernetes

    Cloud deployments, infrastructure automation, and production-ready reliability.

Stack & tools

Languages & frameworks

  • Node.js
  • NestJS
  • TypeScript
  • JavaScript
  • Angular
  • React
  • Next.js
  • HTML5
  • CSS3

Infrastructure & tools

  • AWS (EKS, Route53, ACM)
  • Docker
  • Kubernetes
  • Helm
  • CI/CD
  • Prometheus
  • Git

Data & automation

  • MariaDB
  • MySQL
  • n8n
  • LangChain
  • OpenAI API
  • AI-assisted development (Copilot, Cursor, Claude)

Education

B.Tech in Computer Science and Engineering

Shri Shankaracharya Group of Institutions

Bhilai, India · Jun 2021 · GPA: 8.97 / 10

Contact

Let's build something sharp together.

© 2026 Harsh Singh. All rights reserved.