I am a Software Engineer focused on full-stack web and cross-platform mobile application development, with a growing specialization in Application Security and Product Security.

I design and build software across the full product lifecycle — from UI/UX and mobile applications to APIs, backend services, databases, cloud infrastructure, and security controls.

My primary development stack is React Native + Expo + TypeScript for mobile and React + Next.js + TypeScript for web, supported by backend technologies including Laravel, Node.js/TypeScript, Spring Boot, PHP, Python, PostgreSQL, MySQL, MongoDB, and Redis.

I work on both product engineering and security-driven software development, with an emphasis on maintainable architecture, secure implementation, scalable systems, and practical user experiences.

Software Engineering • Mobile • Full Stack • Security • System Design

• 📱 Cross-platform mobile application development
• 🌐 Full-stack web application development
• ⚙️ REST API and backend engineering
• 🗄️ Database architecture and optimization
• 🏗️ System and application architecture
• 🔐 Authentication, authorization, and secure API design
• 🛡️ Application Security and Product Security
• ☁️ Cloud infrastructure and application deployment
• 🎬 Media streaming and content delivery systems
• 💳 Digital commerce and payment integrations
• 🤖 AI-powered applications and automation
• 🧩 White-label and multi-application platforms
• 🎨 UI/UX implementation and design systems

Production Content Platform • Multi-Application Architecture • Digital Commerce

StoryStream is a production-oriented digital content platform supporting novels, comics, and video content, developed as part of a larger white-label application ecosystem.

The platform is designed to support multiple independent branded applications while sharing common backend and infrastructure capabilities.

31 Independent Mobile Applications
              │
              ▼
      Shared Backend Codebase
              │
              ▼
       Shared Admin Platform
              │
        ┌─────┴─────┐
        ▼           ▼
    OSS / CDN   Shared Services
        │
        ▼
31 Independent Databases

UniApp Vue 3 Laravel 13 PHP 8.4 PostgreSQL 16 Redis Nginx Alibaba Cloud ECS Alibaba OSS CDN HLS Vite

• 📚 Novel, comic, and video content management
• 🎬 HLS-based video delivery
• 💰 Coins and subscription systems
• 💳 Google Play Billing
• 📱 Android application distribution
• 🌍 Multi-brand application architecture
• 🗃️ Independent database per application
• ☁️ Alibaba Cloud infrastructure
• 📦 Object storage and CDN delivery
• 🔐 Authentication and authorization
• 🛠️ Centralized administration
• 🌐 Internationalization
• 🎨 Brand-specific application configuration
• 📊 Synthetic-user generation
• 📈 Content engagement simulation
• 🔄 Background processing and scheduled workflows
• 🔒 Backend-side validation and security controls

This project involves production application engineering, digital commerce, cloud infrastructure, mobile distribution, content systems, media delivery, and large-scale application architecture.

Enterprise Application • Workflow Management • Secure Backend Engineering

IRB_Smart is a clinical research and ethics management platform designed to manage research applications, ethics review, researcher workflows, meetings, decisions, attachments, and pre-review processes.

Next.js 15 TypeScript Tailwind CSS v4 Shadcn UI Recharts Spring Boot Java PostgreSQL Flyway JWT

• 🧑‍🔬 Researcher application management
• 📋 Amendment workflows
• 🔄 Annual continuing-review workflows
• 🔎 AI-assisted pre-review
• ⚙️ Rule-engine based validation
• 📎 Required field and attachment validation
• 📊 Application scoring
• 📝 Decision letters
• 🗓️ Researcher meetings
• 📑 Agenda and application relationships
• 🔐 JWT authentication
• 🗄️ PostgreSQL architecture
• 🔄 Flyway database migrations
• 🧩 Modular Spring Boot architecture
• 🏗️ REST API design
• 🛡️ Secure enterprise workflow implementation

The pre-review system uses a deterministic rule engine to validate application completeness, required information, and required attachments rather than relying solely on generative AI.

React Native • Expo • TypeScript • Mobile Product

DayOne is a cross-platform productivity application combining task management, reminders, health activities, progress tracking, gamification, and global productivity insights.

Non-Disclosure Information

• ✅ Task management
• 📅 Scheduling
• 🔁 Recurring tasks
• 🔔 Reminders
• 📈 Productivity analytics
• 🔥 Streak tracking
• 🏆 Global leaderboard
• 🪙 Gamification
• 💧 Water-intake tracking
• 🍎 Daily health activities
• 🌍 Internationalization
• 🌙 Automatic theme detection
• 📱 Mobile-first UX

• Non-Disclosure Information

Non-Disclosure Information

Mobile Application • Real-Time Communication • Digital Payments

A planned mobile product combining real-time communication with digital payment functionality.

• Non-Disclosure Information

Non-Disclosure Information

AI Application • Full-Stack Web

A TypeScript-based web application integrating AI-powered video generation workflows.

Next.js React TypeScript Supabase AI APIs

• AI-assisted content generation
• Media generation workflows
• API integration
• Authentication
• Backend services
• Responsive UI
• Modern web architecture

A Python + CustomTkinter desktop application designed for retail management.

• User authentication
• Shopping cart management
• Dynamic dashboards
• MySQL backend
• Secure database operations
• Modular UI architecture
• Retail workflows

Python CustomTkinter MySQL

A PHP + MySQL web application implementing digital commerce functionality.

• Customer registration
• Authentication
• Product/video browsing
• Shopping cart
• Order processing
• Relational database design
• Query optimization

PHP MySQL HTML CSS JavaScript

A collection of JavaScript and Python implementations for academic and practical problem solving.

• Algorithms
• Data structures
• Greedy algorithms
• Optimization problems
• Computational thinking
• Logic-based workflows

JavaScript Python

React Native Expo TypeScript JavaScript UniApp

• Cross-platform mobile development
• Native platform integration
• Reusable component architecture
• Navigation
• State management
• REST API integration
• Push notifications
• Local storage and caching
• Internationalization
• Performance optimization
• Android/iOS application packaging

React Next.js TypeScript JavaScript Vue 3 UniApp Tailwind CSS Element Plus Shadcn UI Vite

• Component-driven architecture
• Responsive design
• Design systems
• Server/client rendering
• API integration
• State management
• Form handling
• Data visualization
• Internationalization
• Reusable UI systems
• Mobile-first interfaces

Laravel PHP Node.js TypeScript Spring Boot Java Python

• REST API development
• Authentication
• Authorization
• JWT
• Refresh tokens
• OTP systems
• Business logic
• Workflow engines
• Background jobs
• Queues
• API validation
• Secure backend architecture

PostgreSQL MySQL MongoDB Redis

• Database modeling
• Schema design
• Relational architecture
• Indexing
• Query optimization
• Database migrations
• Data integrity
• Transactions
• Caching
• Database-per-application architecture

Linux Ubuntu Nginx Alibaba Cloud ECS Alibaba OSS CDN Cloudflare Git GitHub

• Linux server administration
• Nginx configuration
• Reverse proxy configuration
• SSL/TLS
• DNS configuration
• CDN configuration
• Object storage
• Media delivery
• Application deployment
• Production environment management
• Cloud infrastructure
• Domain and certificate configuration

• Secure authentication
• Authorization and access control
• JWT security
• Refresh-token security
• OTP flows
• Input validation
• SQL injection prevention
• API security
• Encryption
• Secure database operations
• Secure file handling
• Defensive programming

• Security-by-design
• Threat modeling
• Secure SDLC
• Vulnerability prevention
• Security testing
• Dependency security
• Supply-chain security
• Security architecture
• Secure deployment practices

Python TensorFlow scikit-learn Pandas NumPy SciPy Matplotlib Plotly Streamlit

• Machine learning
• Fraud detection
• Data analysis
• Data visualization
• AI application integration
• Automation
• Intelligent workflows
• Security analytics

Git GitHub Postman Figma Canva HBuilderX Vite npm Yarn NVM

• Git / GitHub
• Postman
• REST API testing
• Package management
• Environment configuration
• Version management
• API debugging
• Mobile development tooling

I am particularly interested in designing systems around:

• Modular monoliths
• RESTful APIs
• Distributed systems
• White-label platforms
• Multi-application ecosystems
• Database-per-application architectures
• Background jobs
• Queue-based processing
• Redis caching
• CDN-based content delivery
• Object storage
• Media streaming
• Authentication services
• Digital commerce systems
• Enterprise workflows
• Secure system architecture

My current development path is:

Mobile Engineering
       │
       ▼
Full-Stack Development
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       ▼
Backend Engineering
       │
       ▼
System Design
       │
       ▼
Cloud & Infrastructure
       │
       ▼
Application Security
       │
       ▼
Product Security

I am building toward the ability to independently engineer complete products across:

Frontend → Mobile → API → Backend → Database → Infrastructure → Security

• Full-Stack Software Engineering
• React Native / Mobile Engineering
• React / Next.js
• Backend Engineering
• System Design
• Application Security
• Product Security

• AI-powered applications
• Security automation
• Cloud infrastructure
• Data-driven systems
• Digital commerce
• Media/content platforms
• Enterprise workflow systems

                 GOOD SOFTWARE
                      │
       ┌──────────────┼──────────────┐
       ▼              ▼              ▼
   Architecture      UX          Security
       │              │              │
       └──────────────┼──────────────┘
                      ▼
                 Reliability
                      │
                      ▼
                  Scalability
                      │
                      ▼
               Production Quality

I believe software should be:

Maintainable • Secure • Scalable • Reliable • Performant • User-Centered

Security should be considered during architecture and development — not added only after the product is built.

📧 Email: abdulkarimumar86@gmail.com

Build with purpose. Engineer with discipline. Secure by design.