Bibhu Prasad De

3+ Years | MERN · NestJS · Next.js · Kotlin · Swift · Flutter · DevOps

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Featured build

Live on Play Store & App Store

About Me

Building production-grade products end to end

Results-driven Full Stack and Mobile Engineer with 3+ years of end-to-end ownership across web, mobile, and infrastructure. Delivered 50+ production applications including 6 live apps on the Google Play Store and Apple App Store with real user bases.

Proficient across the full delivery lifecycle: NestJS/Express/Laravel backends, React/Next.js admin frontends, and React Native/Kotlin/Swift/Flutter mobile apps, with containerised deployments via Docker, Nginx, and CI/CD pipelines.

50+

Projects Delivered

Years Experience

Live Apps

Tech Stacks

Skills

Technologies I work with daily

Backend, frontend, mobile, databases, real-time systems, DevOps, and payments.

Backend

NestJSNode.jsExpress.jsTypeScriptLaravelREST APIs

Frontend

React.jsNext.jsReduxTailwind CSS

Mobile

React NativeKotlinJetpack ComposeSwiftFlutter

Databases

MongoDBPostgreSQLMySQLRedis

Real-time

Socket.IOWebRTCAgora RTCFirebase

DevOps

DockerNginxGitHub ActionsAWS Lightsail

Payments

PhonePeRazorpayApple IAP

Experience

Professional journey

3+ years delivering web, mobile, and infrastructure solutions.

Full Stack and Mobile Developer (Manager)

Knowledge Nation Law Centre

Delhi · Dec 2023 – Present

Present

Architected and maintain a monorepo of 4 live web platforms and 4 mobile apps on a unified Node.js/Express API.
Reduced API latency by ~85% on high-traffic endpoints using Redis caching (800ms → 15ms).
Shipped Knowledge Nation and First IAS apps on Google Play and Apple App Store with Bunny Stream, Firebase FCM, and Google OAuth.
Deployed via Docker with GitHub Actions CI/CD for zero-downtime releases.

Node.jsExpressNext.jsMongoDBRedisKotlinSwiftDocker

Full Stack and Mobile Developer (Freelance)

Indian Software Services Pvt. Ltd.

Delhi · Jun 2025 – May 2026

Led HeyyPal end-to-end across NestJS API, Next.js admin, Kotlin Android, and Swift iOS.
Built and published ChatAura with Agora real-time party rooms and Razorpay wallet flows.
Delivered Verble with 70+ frontend pages, 200+ backend modules, and Docker VPS deployment.

NestJSPostgreSQLNext.jsKotlinSwiftAgoraDocker

Frontend Developer

Shivila Technologies Pvt. Ltd.

Kolkata, WB · Jun 2023 – Nov 2023

Built responsive React + Redux web applications for e-commerce, matrimonial, rental, and admin dashboards.
Integrated third-party REST APIs with pixel-perfect UIs using Tailwind CSS and Bootstrap.

ReactReduxTailwind CSSBootstrap

Projects