15+ Years Experience

Engineering High-Speed Backends &
Cross-Platform Mobile Apps

Specialized in building high-availability backends with PHP & CodeIgniter 4, tuning complex MySQL databases, and engineering cross-platform apps with React Native.

Run Instant DB Audit View Work Showcase

15+

Years Field Experience

200+

Enterprise Projects

10M+

Queries Optimized/Sec

99.99%

System Reliability Score

// Proven Track Record

Enterprise Domains & Global Clients

Engineered scalable architectures, optimized core databases, and delivered mobile platforms across critical industries.

FinTech & Gateway

High-Throughput APIs

Enterprise E-Com

WooCommerce Scale

Logistics & Fleet

React Native Apps

SaaS Platforms

MySQL DB Tuning

Interactive Diagnostic Tool

Is Your Database & Backend Bottlenecking Growth?

Select the issues your application is experiencing right now to calculate your System Risk Index & receive an architectural solution roadmap.

Queries Taking > 2 Seconds

Missing indexes, unoptimized JOINs, or high table scans.

Database CPU / RAM Spikes (90%+)

High concurrent load causing server lockups or crashes.

Slow Mobile App API Responses

Heavy payload sizes, uncached REST endpoints, slow SQL execution.

WooCommerce / Checkout Lag

Large wp_postmeta table bloat or missing Redis object cache.

Ajay Gupta

Full-Stack & Database Architect

Over 15 years engineered high-scale backend systems, eliminated MySQL performance bottlenecks, and delivered mobile apps for global enterprise clients.

Core Focus: Database Tuning & Scalability

Primary Stack: PHP, CI4, React Native, MySQL

Location: India / Global Remote

About Me

Bridging Full-Stack Execution with Deep Database Mastery

With over 15 years in software engineering, I specialize in building complete digital systems from scratch as well as troubleshooting heavy backend issues. My core strength lies in combining frontend/mobile delivery with deep database engineering.

Whether it is engineering mobile applications in React Native, building REST APIs in CodeIgniter 4, or tuning heavy MySQL databases executing millions of records, I ensure your application runs fast, secure, and reliable.

Full-Stack Development

End-to-end development covering web backends, APIs, and mobile interfaces.

Database Optimization

Fixing slow queries, schema redesign, index layouts, and memory caching.

Technical Core Competencies

Proven technical mastery designed to support high performance and rapid execution.

MySQL Database Architecture

Heavy query optimization, indexing strategies, database replication, clustering, and high-frequency schema tuning.

PHP & CodeIgniter 4 Systems

Custom CodeIgniter engines, REST APIs, microservices architecture, and legacy code refactoring pipelines.

React Native Mobile Engineering

Cross-platform iOS and Android mobile apps optimized for native performance, push messaging, and offline sync.

Enterprise WordPress & WooCommerce

Custom plugin development, complex WooCommerce scaling, headless CMS integrations, and speed optimization.

Cloud & DevOps Integration

Cloudflare Edge Workers, serverless functions, automated deployment pipelines, and global CDN caching.

Cybersecurity & Code Auditing

Vulnerability assessments, SQLi/XSS mitigation, data encryption compliance, and architectural security reviews.

Visual Portfolio

Featured Work Showcase

Real production screenshots, admin dashboards, and mobile app interfaces.

api.payment-gateway.io

Enterprise FinTech

High-Frequency Payment Gateway

Designed an API engine capable of handling 50,000+ daily transactions with 99.99% uptime using PHP CodeIgniter 4 and optimized MySQL schemas.

PHP CI4 MySQL Tuning

Logistics Driver App

Cross-Platform Mobile

Real-Time Logistics Driver App

Engineered a React Native mobile application for fleet drivers with real-time GPS tracking, offline data persistence, and automated sync.

React Native Redux REST API

store.enterprise-brand.com

High Scale E-Commerce

Custom WooCommerce Platform

Scaled an enterprise WooCommerce store with 100,000+ products, reducing server load time from 4.2 seconds to 800 milliseconds.

WordPress Redis MySQL

// Proven Track Record