Application & business logic
Backend features that handle the agreed workflow, validate incoming data, and apply the rules behind the interface.

The backend handles what happens after someone clicks: validating input, checking access, applying business rules, and returning the right information.
Discuss backend developmentI develop backend features using PHP, Laravel, CodeIgniter, Node.js, and MySQL, choosing the approach around the application and its existing stack. The goal is a maintainable system that supports the actual workflow rather than just a collection of endpoints.
Planning the backend means understanding the records the application manages, the people allowed to use them, and the rules that keep the workflow consistent. Database relationships, input validation, permissions, API responses, and failure handling are considered together. For an existing application, I first review its dependencies and deployment process so changes fit the codebase. For a new system, the initial scope can focus on the essential data and business logic before further features are added.
The final deliverables are agreed around your project. Here are the areas this service can cover.
Backend features that handle the agreed workflow, validate incoming data, and apply the rules behind the interface.
Data models, relationships, and query behaviour for the records the application needs, with agreed access permissions.
REST endpoints and backend connections for approved clients or external services, with useful responses and failure handling.
We define the data, user roles, workflow rules, integration boundaries, and the behaviours the system must support.
I develop the agreed models, application features, endpoints, and validation in stages that can be reviewed and tested.
We check permissions, invalid data, important failure paths, and deployment requirements alongside the successful workflow.
Yes. The starting point is the interface’s data requirements, authentication needs, and expected API responses. Those define the backend scope and integration contract.
Yes, after reviewing the framework version, dependencies, database, and deployment setup. Any compatibility issues are identified before changes are planned.
Both are part of my backend toolkit. The existing application, hosting environment, and requirements determine which is appropriate for a project.
Access rules and input validation are defined around the agreed user roles and workflow. They are checked on the backend rather than relying only on what the interface displays.