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Anand User

@ananduser9

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Frontend engineer at Upstox who improved trading-platform interaction latency from 400ms to 120ms.

India

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At Upstox, I architected a generic widget system for 15+ real-time trading widgets on the redesigned Upstox Pro homepage. I also resolved tab-switch delays, bringing interaction latency from 400ms to 120ms.

At Lifesight, I owned frontend platform strategy for an eight-engineer team and led a migration from CRA and Webpack to Vite and Rollup, cutting build times by 60%. I also introduced virtualized tables and lazy-loaded charts for large datasets.

At Swiggy, I owned feature delivery on the multi-tenant web platform for Checkout and Instamart, which served 1–1.5M daily orders. Earlier, at QBurst Technologies, I built reusable React component libraries and RESTful APIs with Node.js and Express.

Experience

Work history, roles, and key accomplishments

Current

Software Dev Engineer II – Frontend (FTC)

Current

Upstox

Jan 2026 - Present (9 months)

Architected a generic widget system powering 15+ real-time trading widgets on the redesigned Upstox Pro homepage. Resolved tab-switch INP delays, reducing interaction latency from 400ms to 120ms and improving Core Web Vitals platform-wide.

React TypeScript Core Web Vitals INP Optimization Code Splitting Claude Code Figma Code Connect

Software Engineer – Frontend

Lifesight

Jan 2024 - Oct 2025 (1 year 9 months)

Owned frontend platform strategy for an 8-engineer team, covering performance, component architecture, error monitoring, and design system. Led migration from CRA + Webpack to Vite + Rollup, cutting build times by 60% and improving deploy velocity.

React TypeScript Vite Rollup Webpack View Transitions API Virtualization Playwright Testing Library Feature Flagging

Software Engineer – Frontend

Swiggy

Mar 2022 - Jan 2024 (1 year 10 months)

Owned feature delivery on Swiggy's multi-tenant web platform (Checkout, Instamart) serving 1–1.5M daily orders, lifting AOV by Rs.1.5 in A/B tests. Authored technical design docs and rebuilt Instamart's order-tracking UI as responsive React components.

React TypeScript A B Testing Technical Design Responsive Design

Fullstack Software Engineer

QBurst Technologies

Aug 2019 - Mar 2022 (2 years 7 months)

Built reusable React component libraries adopted across client web applications, cutting development time and ensuring design consistency. Built RESTful APIs in Node.js/Express with authentication middleware and data validation.

React NodeJS Express REST APIs Authentication Data Validation