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Prakhar Kumar

@prakharkumar2

Software Engineer at a stealth startup building a creator platform with secure payouts, verification, and media moderation.

India

Message

At a stealth startup, I build full-stack features for a pre-launch creator platform. I designed a same-origin BFF architecture using httpOnly session cookies, replacing client-trusted bearer tokens on sensitive routes.

I work on money-integrity paths including fulfillment, wallet credits, refunds, chargebacks, and payouts, with webhook idempotency and safe concurrent updates. I also implemented KYC, age-verification, and creator-onboarding flows with server-held verification state.

For the platform’s content and media pipeline, I built presigned S3 uploads, signed playback URLs, and fail-closed moderation using AWS Rekognition. I instrumented server-side analytics with PostHog and consent-aware identity tracking.

Previously, I architected and shipped 80+ REST API endpoints at Sttribe, including a tribe-management system and an OTT cost-splitting engine. I’ve also built a barber-shop booking app and projects for document analysis and AI chat.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Stealth Startup

Jul 2025 - Present (1 year 4 months)

Built full-stack features on a pre-launch creator platform using Next.js, React, and TypeScript, with a Node.js/Express/Prisma/PostgreSQL backend deployed via Terraform-managed AWS ECS. Designed a same-origin BFF architecture with httpOnly session cookies, implemented money-integrity paths, KYC/age-verification flows, and a content/media pipeline with presigned S3 uploads and AWS Rekognition moder

Next.js React TypeScript NodeJS Express Prisma PostgreSQL Terraform AWS ECS S3 Amazon Rekognition PostHog Webhooks KYC BFF Architecture

Backend Engineer

Sttribe

Dec 2023 - Jan 2025 (1 year 1 month)

Architected and shipped 80+ REST API endpoints across 8,000+ lines of backend code using Firebase Functions and Firestore, with Google Sign-In and Phone OTP auth. Developed a full tribe management system, OTT cost-splitting engine, integrated Razorpay and Cyrus Recharge API, and built real-time tribe chat with Firestore and an admin analytics portal.

Cloud Functions For Firebase Firestore REST APIs Google Sign In Phone OTP Authentication Razorpay Cyrus Recharge API Real time Chat Analytics

Freelance Developer

CuttingINC

Oct 2022 - Jan 2023 (3 months)

Built a full-featured barber shop discovery and booking app from scratch using React Native and TypeScript, with Google Maps-based geolocation search and live slot availability. Developed conflict-free appointment scheduling logic, integrated Stripe and Razorpay for advance booking payments, and designed a Node.js/Express/MongoDB backend with JWT auth and role-based access control.