hadysalam

Led full-stack development across web, mobile, and internal SaaS products (Project Management, Task Management, HR systems, Employee Portal). Developed responsive and dynamic websites using React, Next.js, Mantine, Material UI and pure Tailwind. Built and maintained in-house solutions: PM systems, HR portals and other internal tooling; ensured cross-device support (web & mobile). Implemented and utilized Azure, Power Platform, and Vercel for scalable deployments and automation. Developed and maintained cross-platform mobile applications using React Native & Expo. Used Electron to build PC inventory management software with dashboards for monitoring and controlling warehouse inventory counting processes. Created and consumed RESTful APIs applying microservices and clean architecture principles using Next.js and Node.js. Integrated Microsoft Dynamics Business Central, Microsoft CRM, and other third-party APIs for ERP/CRM synchronization and automation. Optimized web applications for speed, scalability, and security; implemented caching strategies and CDN integration. Integrated payment gateways for secure online transactions, ensuring PCI compliance and optimized checkout flows. Deployed Android and iOS apps to Google Play Store and Apple App Store, ensuring store guideline compliance. Conducted code reviews, provided mentorship, and ran developer onboarding to ensure best practices. Standardized TypeScript adoption for improved code quality and maintainability across large codebases. Implemented comprehensive testing with Jest for critical modules and maintained test coverage targets. Conducted performance profiling and optimization using Lighthouse and build tooling (Webpack). Implemented advanced authentication and authorization mechanisms including OAuth2 and JWT. Authored detailed technical documentation, architecture diagrams, and development guidelines. Managed hosting, domain configurations, DNS, and SSL/TLS certificate deployments. Designed and implemented database schemas using PostgreSQL; optimized queries and indexes for large datasets. Managed database backups, restores, and disaster recovery procedures. Ensured data integrity and consistency through transaction management and ACID-compliant patterns.

Developed responsive web pages and SPAs using Angular, React, Next.js, HTML, CSS, JavaScript, TypeScript, Bootstrap, jQuery, Tailwind. Created and consumed RESTful APIs applying microservices and clean architecture using Laravel, Node.js, Express. Integrated third-party APIs, back-end services, payment gateways and cloud platforms. Optimized web applications for speed, scalability, and security; performed audits and implemented remediation. Used Git and GitHub for source control and pull-request driven development. Configured, customized and developed WordPress themes and plugins using PHP and MySQL for custom features. Developed and maintained cross-platform mobile applications with React Native and Ionic. Deployed Android and iOS apps to stores and managed release pipelines. Implemented CI/CD pipelines and automated deployments. Conducted code reviews, enforced coding standards, and mentored junior developers. Integrated real-time features using WebSockets and Firebase for chat/notifications. Developed PWAs and improved offline resiliency and performance. Implemented state management using Redux and React Context API. Ensured testing coverage with Jest and performance profiling via Lighthouse/Webpack. Implemented authentication and authorization (OAuth2/JWT). Authored documentation and established development best practices. Managed AWS hosting and infrastructure, including environment setup and monitoring. Designed and managed database schemas in PostgreSQL; optimized queries, indexes, backups and recovery plans. Ensured transactional consistency and data integrity.

Delivered responsive frontends and SPAs using Angular, React, Next.js, HTML, CSS, JavaScript, TypeScript, Bootstrap, jQuery, Tailwind. Built backend APIs and services using Laravel, Node.js, Express applying microservices and clean architecture where applicable. Integrated third-party APIs, payment processors and cloud platforms to extend product capabilities. Improved application speed, scalability, and security through profiling and architectural changes. Used Git/GitHub for collaboration and version control. Developed custom WordPress themes and plugins using PHP/MySQL for complex client needs. Built and maintained cross-platform mobile apps with React Native and Ionic; managed store submissions. Implemented CI/CD automation and streamlined release workflows. Led code reviews and team mentoring; enforced code quality and testing processes. Integrated real-time functionality via WebSockets and Firebase services. Built PWAs to increase reach and offline functionality. Implemented state management solutions (Redux, Context API). Ensured test coverage with Jest and improved performance via Lighthouse/Webpack. Implemented OAuth2/JWT based authentication and secure authorization flows. Created technical documentation and onboarding guides. Managed AWS hosting environments, DNS, and deployments. Designed relational schemas in PostgreSQL; optimized for performance and reliability. Managed backup and disaster recovery processes.