Prem Kumar S.
Platform engineer who obsesses over product structure and high-level design. I think distribution-first, automate aggressively, and ship things that work at scale -- from SSR infrastructure serving half a million requests a day to marketing pixel integrations that secured $10K in ad credits.
About
I'm a platform engineer passionate about building scalable web infrastructure. My work focuses on the intersection of performance engineering, server-side rendering, and developer experience — creating systems that power millions of user sessions daily without breaking a sweat.
Currently at Quince, I led the migration of an entire storefront off-CDN to enable per-user personalization at scale. I've coordinated autoscaling across 2,000+ SSR pods and 1,200+ BFF pods during peak sale events, keeping latencies under 70ms at p95 while serving half a million SSR requests per day.
Before Quince, I built real-time communication platforms at Zillit for clients like BBC and Netflix, modernized fintech applications at Antino Labs, and created health-tech platforms at Treatment Traveller.
Education
B.E. in Computer Science, Loyola Institute of Technology, Chennai
Focus
Storefront Platforms, SSR at Scale, Performance Engineering, Martech
Writing
Active blogger & content moderator at dev.to
Experience
Bengaluru, India
SDE-3 (Platform Engineer) · Quince (91Social)
- Migrated the entire website off-CDN to enable per-user personalization at scale, unlocking server-driven rendering without compromising performance.
- Shifted Statsig experiments from client-side to server-side evaluation, enabling deterministic UI decisions and reducing client load.
- Scaled SSR and BFF services to handle BFCM peak traffic (4–5× normal load), serving ~500K SSR req/day and 3.8M+ BFF req/day.
- Coordinated autoscaling across 2,000+ SSR pods and 1,200+ BFF pods, keeping p95 latency <70ms (SSR) and <50ms (BFF).
- Led CAPI & Marketing Pixel integrations (Meta, Reddit, Snapchat) via WebGTM + Server-GTM; secured $10K in ad credits.
- Owned on-call & incident response during peak sale hours with OpsGenie, Datadog, ArgoCD, Retool & Contentful.
Delhi, India
SDE-II · Zillit
- Modernised the web app from beta, architecting the frontend with Vite, React, Redux, Dexie, leading a small dev team.
- Delivered secure auth, a Google-style calendar, and real-time C&C module (chat, calls, video) via WebSockets with encrypted media sharing.
- Built E2E encryption, service-worker notifications, and Firebase FCM background alerts.
- Helped scale the platform for global clients including BBC, Netflix, Prime, and Film Finance.
Gurugram, India
React JS Developer · Antino Labs
- Migrated LIC Mutual Fund (Kfintech) from .NET to React/Node.js with modern UI design.
- Created a single page handling 15 separate business modules using reusable components and Redux state management.
- Implemented SHA256 encryption for all user data in the fintech application.
Noida, India
Frontend Web Developer · Treatment Traveller
- Created Hosplan using React.js to help users search and find hospitals and doctors in India.
- Built direct appointment booking functionality with doctors through the application.
Skills & Tools
Languages & Frameworks
State & Data
Infrastructure & DevOps
Observability & Analytics
CMS & Tools
Marketing & GTM
Get In Touch
I'm always open to discussing new opportunities, interesting projects, or just chatting about scalable systems and web performance.
Say Hello