Backend systems
PHP and Laravel development in India.
I’m Raju Kumar Raja, a PHP and Laravel developer based in New Delhi, India. I work remotely with businesses across India on backend systems and custom web applications.
My work includes Laravel and CodeIgniter application development, secure authentication, role-based dashboards and improvements to existing products. Explore the project case studies for the workflows and integrations behind my experience.
- Laravel and PHP application development, CRUD modules and reusable service logic.
- Role-based dashboards and workflows designed around user responsibilities.
- CRM and LMS modules for client, sales, support and learning workflows.
01 / A CLOSER LOOK
Business rules behind the interface
A backend connects a user action to the rules that determine what is allowed and what should be saved. For a CRM record, that might include the required fields, the permitted status changes and the organisation that owns the record. For a learning application it may include enrolment, access and the relationship between a lesson and recorded progress.
Separating request handling from reusable application logic makes those decisions easier to understand and review. Validation should explain why input cannot be accepted, while authorisation decides whether the current user may perform the action at all. A practical backend discussion therefore starts with examples of the business process and the existing data model, rather than choosing a framework before the workflow is understood.
02 / A CLOSER LOOK
Identity, roles and record access
Authentication establishes who is making a request. Authorisation decides which actions and records that identity can access. A hidden button does not replace a server-side permission check: a protected operation must still check the user when a request reaches the application. Record ownership also matters when several teams or clients use the same system.
A role matrix can make the expected behaviour explicit. It should describe who may view, create, update, export or delete each kind of record, including exceptions such as an assigned owner or administrator. Session expiry and sign-out should have understandable outcomes. A review should include a permitted request and a denied request, so the boundary is demonstrated instead of inferred from the interface.
03 / A CLOSER LOOK
Validation that helps a person recover
Validation translates the requirements of an action into checks on the data being submitted. It covers required fields, permitted formats, allowed choices and relationships that must exist. Browser checks can provide immediate guidance, but server-side validation remains necessary because requests may arrive through another client or an edited form.
An error response should identify the affected input and provide a useful correction without exposing internal details. The interface should preserve appropriate entered values so that a person can fix one mistake without repeating the entire task. Success feedback should appear only after the intended operation has completed. Thinking through missing, duplicate and unexpected input is part of defining the workflow, not a separate cosmetic step after the screen is built.
04 / A CLOSER LOOK
Connect clients through a clear API contract
An API contract describes the request a client may send and the response it can rely on. That includes input names, validation rules, authentication, pagination and the difference between a successful operation and a rejected one. Consistency helps a web interface, a mobile application and an external integration handle the same business rules without guessing.
Changes to an established API need to consider existing consumers. Removing a field, changing its meaning or altering an error shape can affect a client that was not part of the latest development session. Examples and compatibility notes make the contract easier to review. The portfolio documents REST API work and integrations; the exact endpoints and access requirements of a live product should be confirmed through its own authorised documentation.
05 / A CLOSER LOOK
Model the relationships before adding screens
A relational model should reflect the relationship between the records people work with. A client may have several projects, a project may contain tasks and an invoice may refer to a service or a customer. Explicit relationships help the application answer questions consistently and reduce the need to copy the same information into unrelated places.
The model also needs rules for change. What happens to linked history when a record is archived? Can two users create the same external reference? Which fields represent the current state and which preserve an event that already occurred? These decisions influence validation, reporting and deletion behaviour. A diagram is useful when it clarifies those questions; a list of tables alone does not explain the business process.
06 / A CLOSER LOOK
Review the complete journey
A screen can appear correct while the underlying workflow is incomplete. A useful review follows a record from its first creation through validation, persistence, reload, later edits and any linked action. It also checks what happens when a field is missing, an external service fails or a user attempts an action that their role does not permit.
The depth of testing should match the consequence of a mistake. An informational layout needs readable content and working navigation; a payment or permission change needs closer checks around state and access. Review notes should make the expected result visible, explain the conditions used and distinguish a verified outcome from a limitation that still needs attention. This is a review approach, not a claim that every historical project has identical test coverage.
07 / A CLOSER LOOK
Deployment connects code to an operating site
A successful build is one part of a release. The deployed application also depends on domain routing, HTTPS, environment configuration and any database or external service it uses. A release review should check the published URL and the important journeys, rather than relying only on a local screen or a compilation result.
Configuration values and secrets should remain separate from public content and source examples. A change needs a reviewable version and a way to understand what was published if a regression is reported later. The portfolio documents practical hosting, domain and deployment experience. The details of an individual client’s hosting account, backup arrangement or support agreement must be confirmed directly rather than inferred from this general capability description.
08 / A CLOSER LOOK
Make the next step understandable
A useful delivery includes enough context for the next person to operate the result. That can mean a short explanation of a workflow, where configuration belongs, how a record is managed or which external service is responsible for a particular result. Documentation should describe the application as it is delivered, including anything that remains outside the agreed scope.
Ongoing work may include content changes, bug fixes, performance reviews or new requirements after real use. Those are easier to discuss when the original boundaries and known limitations are recorded. Source access, hosting responsibilities, credentials and support arrangements should be agreed directly for the engagement; the presence of a public project link does not imply permission to access its private administration area.