In my line of work code and examples speak more than words in a nicely formatted elevator pitch. I have written five examples of projects I have worked on, which include technical details. I do not disclose the companies I have worked for, as that might compromise the company, the code and me.
1. User Authentication System
As one of my first projects I built a secure user authentication system using Laravel. The system allows users to register, log in, and manage sessions safely. It implements hashed passwords using Laravel’s built-in authentication features and supports email verification and password resets. Role-based access control ensures that only authorized users can access specific parts of the system. Additionally, I integrated JSON Web Tokens (JWT) for API authentication, allowing seamless mobile and web integration. The system follows best security practices, including protection against SQL injection and brute-force attacks, ensuring a secure and scalable authentication process for all users.
2. API Endpoint for Orders
At a company working with large amounts of customer orders, I developed a REST API to process those orders. The API receives order data, validates customer details, and securely stores the transaction in the database. It includes error handling for invalid inputs and ensures data integrity with transactional database queries. The API is built to be scalable, supporting thousands of concurrent requests with optimized database indexing. It also includes authentication with API keys, ensuring that only authorized applications can interact with the system. The endpoint is designed to be easily extendable, allowing future enhancements such as order tracking, automated invoicing, and third-party integrations.
3. E-commerce Payment Integration
For a medium sized e-commerce customer, I integrated a secure payment processing system using Stripe. Customers can complete transactions using credit cards, Apple Pay, or Google Pay. The backend securely communicates with Stripe’s API, handling payment intents, confirmations, and refunds. It also includes fraud detection measures like 3D Secure authentication and webhook-based transaction monitoring. The system automatically updates order statuses upon successful payment, ensuring a smooth checkout experience. To enhance customer experience, I implemented tokenized payments, allowing returning users to save payment details securely. This integration significantly improved transaction success rates while maintaining compliance with PCI DSS security standards.
4. Scheduled Database Cleanup
I developed a scheduled database cleanup script to remove outdated log records for a data collection company. Over time, large datasets can slow down queries and impact system performance. To prevent this, I created an automated task that runs daily, identifying and deleting logs older than 30 days. The script operates efficiently by utilizing indexed queries and batch processing, ensuring minimal load on the server. Additionally, a logging mechanism keeps track of deleted records for auditing purposes. This optimization improved database performance by reducing storage overhead and ensuring that only relevant data is retained for analytics and reporting.
5. Webhook for Real-Time Data Sync
For a logistics company I implemented a webhook listener to sync real-time shipment updates. Logistics companies need accurate tracking, so I designed a backend service that receives shipment status updates from third-party carriers. The webhook validates incoming data and updates the database accordingly. It handles various statuses such as “in transit,” “delivered,” or “delayed,” ensuring customers have the latest tracking information. To enhance reliability, the system includes retry mechanisms for failed updates and logs all transactions for auditing. This real-time sync capability helped FleetTrack Logistics provide customers with up-to-the-minute shipment tracking across multiple transport networks.