Hi, I'm Manju J

Lead Full Stack Engineer (Mobile-First)

TL;DR? Self Proclamations:

Lead Full Stack Engineer

Mobile-First Architect (iOS, Android, Web)

CI/CD & Release Engineering Lead

AI Experience Builder

WHAT I DO

I'm a Lead Full Stack Engineer with 10+ years of experience building scalable, high-performance mobile and web applications at enterprise and consumer scale. Frontend-heavy engineer with deep expertise in React Native, iOS (Swift), React, and modern JavaScript frameworks, complemented by backend experience in Node.js and GraphQL layers.

I've delivered large-scale mobile-first platforms serving millions of users across retail, loyalty, social discovery, healthcare, and consumer applications. My work includes building production-grade iOS and Android apps, designing microfrontend architectures, and integrating AI-powered experiences into modern web applications using Next.js, Modern.js, and Module Federation.

As a technical leader, I own end-to-end release cycles, CI/CD automation (Azure Pipelines, Fastlane), code quality enforcement, and cross-functional collaboration. I'm passionate about clean architecture, developer experience, performance optimization, and delivering reliable products at scale.

CHECK OUT MY PROFILE

TECHNOLOGIES & TOOLS

Mobile & Cross-Platform

React Native

iOS (Swift)

Android

Responsive Design

Frontend & Web

React

Next.js

Modern.js

TypeScript

JavaScript (ES6+)

Backend & APIs

Node.js

GraphQL

REST APIs

Redux

Zustand

Context API

DevOps & Engineering

Azure Pipelines

CI/CD

Fastlane

Git

Firebase

Jest

WHAT I LOVE

🎨

Clean UI/UX

Building beautiful, intuitive interfaces with attention to detail and smooth animations.

🤖

AI & LLMs

Creating intelligent applications with RAG, streaming responses, and conversational interfaces.

📱

Mobile-First

Crafting responsive, performant mobile experiences with React Native and modern web technologies.

🏗️

Architecture

Designing scalable systems with microfrontends, module federation, and clean code principles.

⚡

Performance

Optimizing applications for speed, efficiency, and exceptional user experience.

WHAT I'VE DONE

Lead Mobile & Web Engineer

Cross-Platform Full Stack Development

10+ Years

Led development of large-scale mobile-first applications serving millions of users across iOS (Swift), Android, and Web (React Native, React, Next.js). Owned end-to-end product delivery including architecture design, implementation, code reviews, and production releases. Built retail, loyalty, social discovery, and healthcare platforms with high performance and stability requirements.

React NativeiOS (Swift)AndroidReactNext.jsTypeScript

Backend & API Development

Full Stack Engineering

Node.js • GraphQL • REST

Designed and implemented backend services and GraphQL layers for mobile and web applications. Built scalable REST APIs, managed state architecture (Redux, Zustand, Context API), and integrated third-party services. Delivered seamless client-server communication for production apps.

Node.jsGraphQLREST APIsReduxZustand

CI/CD & Release Engineering

DevOps Leadership & Automation

Azure • Fastlane • Firebase

Owned CI/CD pipelines, release automation, and production stability across multiple platforms. Implemented Azure Pipelines workflows, Fastlane automation for iOS/Android, Firebase integrations (Analytics, Crashlytics, Remote Config), and code quality enforcement. Delivered reliable, repeatable release processes at scale.

Azure PipelinesFastlaneFirebaseGitJestPerformance Optimization

Modern Web Architecture

Microfrontends & AI Integration

Modern.js • Module Federation

Architected and built modern web applications using microfrontend patterns, module federation, and AI-powered features. Implemented design systems, reusable component libraries, and intelligent chat interfaces with streaming responses and RAG patterns. Delivered clean, maintainable, and scalable frontend systems.

Modern.jsNext.jsModule FederationAzure OpenAIRAG

AI/LLM Integration Engineer

Intelligent Application Development

LLMs • AI Integrations

Building intelligent chat interfaces with streaming responses, RAG implementation, and citation systems. Developing modern UIs with auto-scroll, feedback mechanisms, and real-time updates. Integrating backend LLM services with Azure OpenAI and creating seamless AI-powered experiences.

Modern.jsAzure OpenAILLMsRAGStreaming UI

WHAT I'VE BUILT

Govinda Mobile App (TTD)

Led development of official devotional and service app serving millions of pilgrims. Built with React Native, handling complex booking flows for darshan, offerings, and accommodation. Owned end-to-end delivery, state management architecture (MobX), and production releases for Android platform.

React NativeMobXAndroid AppPilgrim Services

IQVIA Sales View Mobile App

Built enterprise-grade mobile app for pharma sales teams across iOS and Android. Implemented complex data visualizations, real-time analytics dashboards, and competitive intelligence features using React Native and NativeBase. Delivered production app with performance optimization and secure data handling.

React NativeNativeBaseChartsEnterprise App

GIST iOS App

Architected and developed social commerce platform with React Native for iOS. Implemented complex state management with dynamic reducers, Firebase real-time features (Authentication, Firestore, Analytics), and scalable feed architecture. Built discover feeds, anonymous posting, and template systems with smooth UX.

React NativeFirebaseDynamic ReducersSocial Commerce

GetGo Mobile & Web App (Giant Eagle)

Led mobile (React Native) and web (Next.js) development for multi-million user retail loyalty platform. Owned CI/CD automation with Azure Pipelines, implemented Firebase integrations (Analytics, Crashlytics, Remote Config), and delivered production releases across iOS, Android, and Web. Solved complex state management and performance challenges at scale.

React NativeNext.jsFirebaseAzure PipelinesRetail

(more coming soon)

GET IN TOUCH!

Whether you have an idea for a project or just want to chat, feel free to shoot me an email!

Say Hello

Beam me up, Scotty!