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API Integration & Backend Development

$60/hr Starting at $2K

Modern applications rely on seamless communication between systems, platforms, and external services. API integration and backend development play a critical role in enabling businesses to automate processes, exchange data efficiently, and deliver richer user experiences. With strong experience in backend logic, server-side development, and integrating diverse APIs, I provide a complete service that connects your application with the tools and technologies you depend on.


I begin by analyzing your system’s structure, operational goals, and data requirements. Whether you need to integrate payment gateways, authentication services, cloud storage, shipping systems, CRM tools, social media APIs, or any custom service, I ensure that the communication between systems is secure, smooth, and properly documented. I handle both RESTful and custom API formats, ensuring accurate data flow and reliable error handling.


On the backend, I build clean, scalable, and well-structured logic using PHP and related technologies. This includes implementing controllers, database interactions, validation layers, user authentication, role management, data processing workflows, and integration modules that keep your system running efficiently. I ensure that every component follows best practices in architecture, performance, and security.


In addition, I provide troubleshooting for broken or unstable integrations, fix API communication errors, optimize slow endpoints, and refactor outdated backend code for better maintainability. I also generate thorough documentation to help your internal team understand how the integrations work, what endpoints are available, and how the backend components interact.


Whether you are developing a new application, upgrading an existing system, or connecting multiple platforms together, I deliver backend solutions that are fast, dependable, and tailored to your operational needs. This service ensures that your systems communicate effectively, your data stays consistent, and your digital operations run smoothly without interruption.

About

$60/hr Ongoing

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Modern applications rely on seamless communication between systems, platforms, and external services. API integration and backend development play a critical role in enabling businesses to automate processes, exchange data efficiently, and deliver richer user experiences. With strong experience in backend logic, server-side development, and integrating diverse APIs, I provide a complete service that connects your application with the tools and technologies you depend on.


I begin by analyzing your system’s structure, operational goals, and data requirements. Whether you need to integrate payment gateways, authentication services, cloud storage, shipping systems, CRM tools, social media APIs, or any custom service, I ensure that the communication between systems is secure, smooth, and properly documented. I handle both RESTful and custom API formats, ensuring accurate data flow and reliable error handling.


On the backend, I build clean, scalable, and well-structured logic using PHP and related technologies. This includes implementing controllers, database interactions, validation layers, user authentication, role management, data processing workflows, and integration modules that keep your system running efficiently. I ensure that every component follows best practices in architecture, performance, and security.


In addition, I provide troubleshooting for broken or unstable integrations, fix API communication errors, optimize slow endpoints, and refactor outdated backend code for better maintainability. I also generate thorough documentation to help your internal team understand how the integrations work, what endpoints are available, and how the backend components interact.


Whether you are developing a new application, upgrading an existing system, or connecting multiple platforms together, I deliver backend solutions that are fast, dependable, and tailored to your operational needs. This service ensures that your systems communicate effectively, your data stays consistent, and your digital operations run smoothly without interruption.

Skills & Expertise

API DevelopmentApi Integration (rest Json Xmlphp)App DevelopmentAuthentication & Authorization SystemsBack End DevelopmentData ManagementData Processing & ValidationDatabase DevelopmentDomain ManagementError Handling & DebuggingFigmaFront End DevelopmentPerformance OptimizationPHPPhp Backend DevelopmentProgrammingSoftware DevelopmentTechnical Documentation For ApisThumbnail DesignWeb DesignWeb DevelopmentWeb GraphicsWeb HostingWeb ManagementWebhooks & External Services Integration

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