Senior Back-End PHP Developer

Worked as a Senior Back-End PHP Developer in an outsourced engagement for Freterium. Delivered PSR-compliant Symfony features and scalable back-end services aligned with business requirements, clean-code practices, and current technical standards.

Used Claude Code and LLM-assisted reviews, refactoring, and test generation to accelerate delivery and improve consistency. Optimized legacy PHP modules, reducing page latency by 20%; refactored database queries and indexes to reduce API response times by 25%; and expanded automated unit testing to improve regression safety by 30%.

Resolved production defects within SLA with a 95% first-time fix rate and collaborated with front-end teams on REST endpoint integration, reducing integration rework by 20%. Mentored junior developers through reviews and pair programming, contributing to a 25% improvement in team quality metrics.

Worked part time as a Senior Back-End PHP Developer in an outsourced engagement for MindLogix. Built scalable back-end services and converted business needs into clean, maintainable PHP implementations.

Optimized legacy PHP components, reducing latency by 18% while improving test coverage. Implemented automated tests for REST endpoints, improving regression detection by 30%.

Mentored junior developers through code reviews and pair programming, helping improve code quality and delivery standards.

Worked as a Mid-Level Back-End PHP Developer in an outsourced engagement for Actindo AG. Architected Laravel and Symfony applications with an emphasis on scalability, performance, clean code, and maintainability.

Led a team of five developers to deliver features within sprint deadlines. Designed REST APIs for third-party integrations, reducing integration errors by 35%, and modernized legacy PHP code to PHP 7/8, reducing runtime issues by 25%.

Strengthened application security through CSRF protection, input validation, and encryption, reducing vulnerabilities by 40%. Standardized local environments using Docker, reducing setup time from hours to 20 minutes, and coached junior developers through reviews and pairing.

Developed and maintained Symfony 2.7 applications, delivering new features that improved user workflows and reduced defect reports by 20%. Built interactive JavaScript UI components and performed website maintenance to improve performance and reduce recurring issues.

Integrated Shopify, Zapier, Tin Can, PayPal, Stripe, Moyasar, and SSO providers including Facebook, Google, Okta, and Microsoft. These integrations reduced synchronization failures by 30%, increased successful transactions by 12%, and improved login conversion by 10%.

Designed MySQL schemas, enhanced test coverage, optimized queries, and improved query performance by 25%. Monitored AWS EC2, S3, and server resources to reduce incidents, performed code reviews, and documented development processes and architecture.

Bachelor's Degree in Computer Science, completed in Cairo, Egypt.

Completed the Open Source Track program.