Developing backend and frontend applications. Worked on Codeigniter, Laravel, Core PHP, Javascript, Ajax, JQuery, JSON, payment gateway integration, APIs, AWS, Docker, Git, Angular (basic), Adonis js (API), Xero Integration, Zoho Integration, DocuSign, Google Drive API integration. Designed and developed scalable RESTful APIs to support high-traffic web and mobile applications. Led backend architecture design and decision-making, ensuring performance, maintainability, and security. Mentored junior developers, conducted code reviews, and established best practices for clean, efficient code. Integrated third-party services and APIs, including payment gateways, authentication services, and analytics tools. Implemented CI/CD pipelines using tools like Jenkins, Docker, GitHub Actions, or GitLab for seamless deployment workflows. Collaborated cross-functionally with frontend developers, DevOps, product managers, and QA teams to deliver robust features. Ensured application security and data protection by applying industry-standard security protocols (e.g., OAuth2, JWT). Conducted system performance tests and troubleshooting, ensuring uptime and reliability under load.