Experienced PHP Developer for Custom Backend and Web Application Development

We are seeking an experienced PHP Developer to build and maintain a secure, reliable and scalable backend system for our web application. The ideal candidate should have strong experience with modern PHP standards, clean coding practices and practical knowledge of backend application architecture. You will work closely with our team to convert feature plans into efficient backend logic and dynamic web functionality.

The work includes building core backend modules, creating clean routing logic, integrating third party APIs, managing database operations, optimizing performance and ensuring the application runs smoothly under real user load. You should be comfortable handling authentication systems, form validations, error handling and session based logic.

We value developers who understand how to structure PHP code for long term maintainability. You should be able to break features into clear components, avoid unnecessary complexity and deliver solutions that are easy to test and extend. If you have experience building real world PHP applications and want to be part of a serious, results driven project, this will be an excellent fit.

✅ KEY RESPONSIBILITIES

Build backend modules using PHP latest stable version

Develop dynamic features and server side logic

Create clean routing structures and request handling

Integrate MySQL or PostgreSQL with optimized queries

Implement authentication, user roles and permissions

Build reusable functions, services and utility classes

Handle form processing, validation and sanitization

Integrate external APIs such as email, payment or analytics

Optimize performance and reduce server load

Implement security measures to prevent vulnerabilities

Debug issues using logs and server side tools

Prepare backend for deployment and production use

Write documentation for logic and API endpoints

Communicate clearly with frontend team

Deliver weekly progress updates

✅ REQUIRED SKILLS

Strong PHP development experience

Understanding of OOP principles

Knowledge of MVC architecture

Experience with MySQL or PostgreSQL

Ability to write clean and reusable backend code

API integration experience

Understanding of session management and cookies

Familiarity with modern PHP tools and standards

Basic understanding of HTML and CSS

Experience with Git version control

Strong problem solving skills

Knowledge of PHP security best practices

Familiarity with Composer

Ability to optimize SQL queries

Portfolio of PHP based projects

✅ TOOLS AND TECHNOLOGIES

PHP eight or higher

MySQL or PostgreSQL

Composer

Apache or Nginx

GitHub or GitLab

Postman for API testing

cPanel or SSH access

PHP extensions such as cURL and PDO

✅ DETAILED TECHNICAL BREAKDOWN

Core Competency

The PHP codebase must follow a clean structure with organized folders, modular functions and reusable components. You should avoid duplicated logic and maintain consistent naming conventions.

Technical Workflow

Analyze requirements and break tasks into backend modules

Design database schema and relationships

Build controllers and services for business logic

Create validation and sanitization layers

Integrate APIs for external services

Test all endpoints using realistic payloads

Deploy code with proper environment setup

Best Practices

Use prepared statements for all queries

Escape and sanitize user inputs

Avoid mixing business logic with templates

Separate core logic into service classes

Use descriptive error messages for debugging

Simple Code Example

function getUserData($id) {

    $query = $this->db->prepare("SELECT * FROM users WHERE id = :id");

    $query->execute(["id" => $id]);

    return $query->fetch();

}

✅ SERVICE TYPES AND SPECIALIZATIONS

Custom backend development

Dynamic web application logic

API integrations

Database architecture

Authentication system development

Bug fixing and optimization

Third party plugin or module development

Long term backend maintenance

✅ DELIVERABLES

Fully functional PHP backend

Clean database design

API endpoints for frontend or mobile apps

Authentication and session management

Performance optimized code

Documentation for endpoints and services

Error logging and debugging setup

Two revision cycles

Support for two to four weeks after delivery

✅ BUDGET OPTIONS

Hourly rate: 25 to 70 dollars

Project based price: 1200 to 15000 dollars

Monthly retainer: 1200 to 5000 dollars

✅ TIMELINE

Planning and architecture setup: 4 to 6 days

Backend development: 1 to 3 weeks

Database optimization: 4 to 7 days

Testing and debugging: 3 to 6 days

Deployment and final polish: 2 to 4 days

Timeline varies based on feature count.

✅ SUCCESS METRICS AND KPIs

Low server response time

Secure handling of all user data

Clean and consistent backend structure

No major production errors

Stable performance under real user load

Positive feedback from frontend and QA teams

✅ CALL TO ACTION

If you are an experienced PHP Developer capable of building stable, scalable and secure backend systems, submit your proposal with previous work samples, your development approach, timeline and expected pricing.

We respond to qualified proposals within twenty four hours.