Experienced PHP Developer Needed for Web Application & Backend Development

We are seeking an experienced PHP Developer to build, optimize, and maintain backend functionalities for a modern, scalable web application. The ideal candidate must have strong knowledge of PHP 8+, MVC patterns, API development, database optimization, and integration with front-end systems.

Your role will include developing backend modules, creating REST API endpoints, handling business logic, integrating external services, writing secure PHP code, and ensuring high performance across all components. You’ll collaborate closely with designers, front-end developers, and the product team to translate requirements into efficient backend processes.

This project involves building custom features, managing authentication, optimizing database queries, debugging complex backend issues, and ensuring smooth deployment. A deep understanding of PHP’s built-in functions, OOP principles, error handling, sessions, security best practices, and code optimization is essential.

You should be comfortable working with MySQL or PostgreSQL databases, designing tables, writing optimized queries, and implementing caching strategies. The project also includes creating APIs that communicate with frontend interfaces built on React, Vue, or pure JavaScript.

This position requires clear communication, strong analytical abilities, and the ability to work independently while delivering high-quality code within defined milestones. If you enjoy solving backend challenges, working with clean code principles, and building production-ready systems, you’ll be a great fit.

✅ Responsibilities (15 points)

Develop backend modules using PHP 8+

Create REST API endpoints with proper validation

Write OOP-based clean, maintainable PHP code

Integrate external APIs (payment, SMS, email, CRM, etc.)

Build authentication and authorization systems

Design and optimize MySQL/PostgreSQL databases

Implement server-side form validation and sanitization

Ensure high performance and optimized queries

Debug backend issues using logs and error tracking tools

Implement secure coding practices following OWASP

Collaborate with frontend developers for API integration

Configure sessions, cookies, and secure storage

Build reusable classes, helpers, and services

Write unit tests (PHPUnit) where applicable

Prepare backend documentation for future maintenance

✅ Required Skills (15 points)

Strong experience with PHP 7.4+ / 8+

Advanced understanding of OOP and MVC

Experience with MySQL/PostgreSQL

REST API creation and integration

Familiarity with frameworks (Laravel optional but preferred)

Understanding of sessions, cookies, authentication

Experience with Composer and PHP packages

Knowledge of security best practices (XSS, CSRF, SQLi)

Strong debugging skills

Experience integrating 3rd-party APIs

Familiarity with Git/GitHub

Comfortable working with JSON-based data

Understanding of caching (Redis/Memcached optional)

Comfortable with server-side optimization

Knowledge of basic DevOps (Apache/Nginx configuration)

✅ Tools & Technologies

PHP 8.x

MySQL / PostgreSQL

Composer

Postman / Swagger

Git / GitHub

Apache / Nginx

PHPUnit

Linux-based hosting

cPanel / SSH

✅ Deliverables

Fully functional PHP backend modules

Secure REST API endpoints

Optimized database schema

Authentication + authorization system

API documentation (Swagger/Postman)

Deployment-ready backend package

Error-handling & logging setup

Clean, commented code

1–2 revision cycles

✅ Budget

Hourly: $30–70/hr

Project: $2,000 – $15,000

Monthly Retainer (optional): $2,500 – $7,000

✅ Timeline

Total Duration: 6–12 weeks

Week 1–2: Architecture + DB design

Week 3–6: Development + API modules

Week 7–10: Optimization + testing

Week 11–12: Deployment + documentation

✅ Success Metrics

API response time < 150ms

99% uptime after deployment

Zero critical security vulnerabilities

Clean logs with minimal errors

90+ performance score

Fully documented codebase

All endpoints tested and functional