Headline

Building the web platform for OLX India’s 35M users · Principal Engineer, Frontend Infrastructure | PWA · React · Node.js

About

In the last year: 50% infra cost reduction, 80% fewer platform errors, and 45% LCP improvement — while DAU grew 20%. I architect the web platform for OLX India's 35M-user marketplace — the frontend infrastructure, PWA layer, CDN strategy, and delivery systems that serve 12M web users on India's largest classifieds platform. Over 7+ years at OLX, I've led work that moved real numbers across four areas: Performance → 45–50% LCP improvement on Desktop Home; 20–25% on key Mobile journeys → 30–50% INP improvement on interaction-heavy pages → ~30% reduction in load times across Home, Listing, and Item pages → CLS stabilised to near-zero across all major flows Reliability → 80–99% reduction in 5xx errors across high-traffic APIs → ~19–36% reduction in 4xx errors; eliminated >99% of undefined endpoint calls → ~50K unwanted bot/parasite-SEO requests blocked daily, protecting crawl quality Infrastructure & Cost → ~50% monthly infra cost reduction at the same traffic scale → 80% pod count reduction via CPU scaling + Akamai offload → CDN cache hit ratio improved from ~30% to ~55–60% → 80% reduction in observability ingestion costs → 35% reduction in CI pipeline time; 40–50% faster local test runs via Vitest migration Developer Experience & Governance → Enforced performance budgets and Web Vitals checks in CI → Standardised Dev and RC workflows with quality gates → Redux Toolkit migration, reducing state management complexity and regression risk Beyond shipping, I run internal workshops on clean code and frontend architecture for junior engineers, and I spoke at the Naspers Global Tech Conference in Amsterdam (2019) on modularising a frontend monolith using Web Components. Stack: React, Node.js, TypeScript, PWA, Akamai, AWS, BFF architecture, CI/CD. Open to conversations on frontend infrastructure, performance engineering, and platform leadership.

Location

Greater Delhi Area

AI stack

codex

cursor

claudecode

Work experience

Principal Engineer at OLX India, Apr 2026 - Present · 5 mos, Leading frontend infrastructure strategy for OLX India's web platform — PWA architecture, CDN delivery, BFF patterns, and performance engineering across a 35M-user marketplace. - Driving lightweight SSR implementation for bot traffic to improve crawl efficiency & reduce bandwidth costs - Optimising Listing page LCP (mobile) toward <2.5s threshold, targeting improved SEO outcomes - Advancing INP reduction via JavaScript optimisation on high-traffic, interaction-heavy pages - Scaling Akamai cache hit ratio beyond 60% to unlock further infra cost savings - Setting technical direction for BFF architecture adoption across web and Android platforms

Technical Architect | Chapter Lead ( Web ) at OLX India, Apr 2024 - May 2026 · 2 yrs 2 mos, Owned the web platform chapter — frontend infrastructure, performance engineering, and delivery systems for OLX India's PWA serving 11M web users across India's largest classifieds platform. Performance & Core Web Vitals → 45–50% LCP improvement on Desktop Home; 20–25% on key Mobile journeys → 30–50% INP improvement on interaction-heavy pages; CLS stabilised to near-zero → ~30% reduction in load times across Home, Listing, and Item pages → Delivered ~92% of committed Core Web Vitals roadmap across two annual cycles Reliability & Security → 80–99% reduction in 5xx errors across high-traffic APIs → ~50K abusive bot and parasite-SEO requests blocked daily, protecting crawl quality and reducing origin load → Eliminated >99% of undefined endpoint calls; reduced 4xx errors by 19–36% Infrastructure & Cost → ~50% monthly infra cost reduction at the same traffic scale (~150K rpm) → 80% pod count reduction via CPU scaling and Akamai offload → CDN cache hit ratio improved from ~30% to ~55–60% → 80% reduction in observability ingestion costs; 35% faster CI pipelines SEO & Organic Growth → Led technical SEO initiative driving 160% increase in daily organic clicks and 50% rise in impressions over 14 months → 99.5% reduction in 404 errors via expired listing redirects and zero-inventory page suppression Developer Experience & Governance → Enforced performance budgets and Web Vitals checks in CI pipeline → Standardised Dev and RC release workflows with quality gates → Redux Toolkit migration reducing state complexity; Vitest migration cutting local test time 40–50% → Ran internal clean code and frontend architecture workshops for junior engineers and interns

Lead Engineer (SE3) at OLX, Apr 2021 - Apr 2024 · 3 yrs 1 mo, Gurugram, Haryana, India, Led frontend architecture and development of OLX's Super App for car dealers — a complex, high-traffic product built on React and Server-Driven UI (SDUI). → Designed and owned end-to-end architecture for the car dealer Super App, enabling dynamic UI composition via Server-Driven UI patterns → Built and scaled the advertisement platform using React, Node.js, and DynamoDB → Mentored a cross-functional team of engineers, driving code quality and architectural consistency → Contributed to global monetisation platform across multiple OLX markets

Senior Software Engineer ( SE2 ) at OLX, Oct 2019 - Apr 2021 · 1 yr 7 mos, Gurugram, Haryana, India, → Developed the car dealer Super App using React and Server-Driven UI, enabling real-time dynamic interfaces for high-volume dealer workflows → Built and maintained the advertisement platform (React, Node.js, DynamoDB) supporting OLX India's core monetisation surface → Delivered UI components across the global monetisation team, contributing to products across multiple OLX markets

Web Developer (SE1) at OLX, May 2018 - Oct 2019 · 1 yr 6 mos, Gurugram, Haryana, India, - Enabling Microfrontends via Web Components in the PWA. - Working on the development of PWA for olx markets using React - Redux. - Worked on the development of the B2C tools and Monetization admin platform using VueJs and React-Redux.

Frontend Developer at FabHotels, Dec 2017 - May 2018 · 6 mos, Gurugram, Haryana, India, - Responsible for developing new features for the mobile website of FabHotels. - Initiate and set up the CI/CD pipeline for seamless deployment of the mobile web application.

Software Engineer at HomeLane, Jun 2015 - Dec 2017 · 2 yrs 7 mos, Bengaluru, Karnataka, India, Currently involved in the development of company's website using React-Redux framework. Single handedly developed entire responsive microsite for an ongoing project : http://tranquility.homelane.com/ using React-Redux framework. Involved in the development of internal CRM tool ,used as a one stop solution for the interaction and management of clients handled by the company ,using MEAN stack. Wrote REST API in NodeJs for different functionalities like sending escalation mails and notifications,uploading the documents to AWS and data synchronization across platforms. Single source of contact for resolving the issues faced by users,while using the product. Helped in increasing the customer base by streamlining the flow of client interaction,while doing their home interiors.

Education

B.Tech, Computer Science, University School of Information, Communication & Technology (USICT)

Class XII, Science, Delhi public school