الزبير خان

ERP System & Financial Ledger Application Development

Built and maintained a scalable ERP system with a complex double-entry financial ledger using React.js, Node.js, Prisma ORM, and MySQL, with AI-assisted development via OpenAI Codex.
Key Contributions:

Developed secure role-based authentication with session handling, password encryption, and separate admin/user access controls.
Engineered a real-time double-entry ledger engine handling automated due, commission, winning, and balance calculations.
Built customer management modules supporting daily transactional workflows and persistent financial records.
Designed responsive dashboards and Excel-like data entry interfaces optimized for speed and accuracy.
Built scalable REST APIs with Node.js and Prisma ORM on a normalized MySQL database with migrations and backup strategies.
Created modular React.js components with real-time state management and auto-save functionality.
Developed reporting systems covering daily summaries, date-range filters, and customer-wise financial tracking.
Managed Git workflows with proper branching, rollback handling, and CI/CD pipelines for automated build validation and deployment.
Deployed on cloud hosting with SaaS-ready, multi-tenancy-friendly architecture and configurable user preferences.

Developed and managed a complete ecommerce jewelry website for gold, diamond, and silver products

Handled full website development using PHP, HTML, CSS, JavaScript, and MySQL

Integrated secure online payment systems including Authorize.net payment gateway

Managed product listings, pricing, inventory updates, and order processing

Implemented SEO strategies to improve organic search visibility and website traffic

Designed and optimized responsive UI/UX for mobile and desktop users

Created custom checkout systems and automated email invoice functionality using PHPMailer

Managed website hosting, domain, server maintenance, and performance optimization

Handled social media marketing, digital promotions, and customer engagement

Monitored analytics, conversion rates, and customer behavior to improve sales performance

Coordinated branding, product presentation, and online marketing campaigns

Provided ongoing technical support, updates, and security maintenance for the website

Creating website from scratch as per client requirement.
- Developing Website Design & Functionality using PHP, CSS, HTML, JAVASCRIPT.
- Developing Website Database using MySQL Database and CREATE, SELECT, UPDATE, DELETE
Records with MySQL Queries.
- Developing Website Admin Dashboard for Client.
- Developing Full Stack PHP Website.
- Designing user interface using Bootstrap CSS, JAVASCRIPT
- Handling the official company page on social media platforms like Facebook, Instagram, LinkedIn, and Twitter
- Creating Content to publish on social media

Developing & Managing Website Design & Functionality using PHP, CSS, HTML, JAVASCRIPT

Developing & Managing Website Database using MySql Database and CREATE, SELECT, UPDATE, DELETE Records with MySql Queries.

Developing & Managing Website Admin Dashboard for Client.

Developing & Managing Account Creation & Login on Website.

Designing user interfaces using CSS, JAVASCRIPT, JQuery

Creating REST API with PHP to SELECT & UPDATE Records

Managing Advertisement & Marketing Campaigns on Google & Facebook

Creating Web Pages for small & medium enterprises

Website SEO for Google Search Ranking, Website Performance & Load Time.

Server Upgrades & Management

Graphic Design for Ads Campaigns using Adobe Photoshop

Building Website Functionality for Better User Interface

Implementing Google AdSense Ads across Website

Managing Network

Hardware and Software Support

Troubleshooting

Installation and up-gradation

• Managed file servers, data backup, IT hardware/software support.
• Windows Server installation, upgrades, migration, networking support and mail client configuration.

Data Entry Job