Available for opportunities

Hey there, I'm

Himanshu Singla

Software Engineer — Frontend @ Trampoline (FableRoom)

Frontend Software Engineer with 3.5+ years building production-grade web and mobile applications at fast-growing startups. Specialises in the React / Next.js ecosystem with a consistent track record of measurable impact across performance, SEO, payments, and lead generation. Comfortable across the full stack (Node.js, Express, MongoDB) and experienced shipping features end-to-end from design to deployment.

Let's Work Together Resume

[email protected]

3.5+

Years of Experience

50k+

Monthly Users Impacted

$70k+

Monthly Transactions

Experience

My professional journey so far

▸Migrated e-commerce storefront to lead-gen platform for 50k+ monthly users — drove +35% leads, +10% MoM revenue, and −18% bounce rate within 6 weeks of launch.
▸Resolved Core Web Vitals failures (LCP 3.1s to 1.6s, CLS 0.22 to 0.04, INP under 100ms) via image CDN, lazy-loading, critical CSS inlining, and route-based code-splitting — mobile Lighthouse 54 to 91.
▸Architected Sanity CMS blog pipeline with ISR, real-time webhooks, and dynamic XML sitemaps — organic traffic +45% in 3 months; publish cycle cut from 2 days to 4 hours.
▸Integrated Stripe (idempotent retries, mobile-optimised checkout) — cart abandonment −30%, processing $70k+/month with zero reconciliation errors.
▸Built ERP/QC dashboards (AG Grid + Recharts + PDF/Excel export) for 100+ ops staff — replaced 3 Excel workflows, saving approx. 8 hrs/week per team.
▸Delivered React Native (Expo) field-inspector app (offline sync, barcode scanning) — report turnaround −60%.
▸Integrating Gemini API for inline PDP product recommendations (targeting +8% AOV); wired GTM + GA4 + Klaviyo — +20% ROI on paid campaigns.

Chaudhary Devi Lal University

Bachelor of Computer Applications (BCA)

2018 – 2021Sirsa, Haryana

Achievements

▸350+ DSA problems (LeetCode | GFG)
▸2nd place · company hackathon
▸Employee of the Month ×2 (Crio.do)

Technical Skills

Technologies I use to bring ideas to life

Languages

TypeScript

JavaScript (ES6+)

HTML5

CSS3

Frameworks & UI

React

Next.js (App Router / RSC)

Redux Toolkit

Tailwind CSS

shadcn/ui

MUI

React Native (Expo)

Data & APIs

REST

React Query

Webhooks

WebSockets

JWT

Node.js

Express.js

MongoDB

MySQL

SQLite

AI & Integrations

OpenAI API

LangChain

Stripe

Shopify

Sanity CMS

Directus

Recharts

AG Grid

Testing

Jest

React Testing Library

Lighthouse CI

DevOps & Tools

Git

GitHub Actions (CI/CD)

Vercel

Docker

Vite

Webpack

Expo EAS

Performance & DX

Core Web Vitals (LCP / CLS / INP)

SEO

WCAG 2.1 Accessibility

PWAs

A/B Testing (GTM / GA4)

Projects

A selection of things I've built

Seymour Events

Implemented WCAG 2.1 real-time captioning across 70+ languages and an HLS.js sign-language stream for 500+ concurrent viewers; inclusive design contribution merged into production.

ReactViteTailwindWebSocketsNode.js

Live Code

QGenius

Built OpenAI API-driven platform with dynamic DSA question generation and adaptive difficulty; 2k+ users, 4.7/5 rating.

ReactNode.jsExpress.jsOpenAI API

Live Code Demo

QKart Express

Full-stack e-commerce platform with end-to-end authentication, shopping cart, and checkout flow built in React.js with a mobile-responsive UI and REST API integration.

React.jsNode.jsExpress.jsMUIREST APIs