08/26/2026 updated

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Senior PHP Backend Developer

Istanbul, Turkey
Worldwide
Associate Degree, Electronics Technology
Istanbul, Turkey
Worldwide
Associate Degree, Electronics Technology

Profile attachments

Mert_Toker_Senior_PHP_Backend_Developer_English.pdf

PHPCodeIgniterE-CommerceElasticsearchPython (Programming Language)LaravelPostgreSQLMySQLModel View Controller (MVC)Performance EngineeringRedisNext.jsSoapUISymfonyTypeScriptGitFastAPIBackend ProgrammingRestful ApiApi ManagementDocker
PHP & Laravel Backend Development
Over 13 years of professional experience in end-to-end backend development using PHP and Laravel, including OOP, MVC, SOLID principles, legacy modernization, and production support for large-scale e-commerce and B2B/C2C marketplace applications.

REST & SOAP API Integration
Extensive expertise in designing and implementing REST and SOAP integration layers for suppliers, marketplaces, payment providers, and shipping services, with management of JSON/XML data flows.

Database Design & Performance Optimization
Strong proficiency in MySQL, PostgreSQL, MariaDB, Redis, Elasticsearch, and ClickHouse, including data modeling, query optimization, and improving performance and reliability in production workflows.

Infrastructure & DevOps
Hands-on experience with Docker, AWS, Git, GitHub, CI/CD pipelines, RabbitMQ, and NATS JetStream for managing release and production support processes.

Python & FastAPI
Active development of Python/FastAPI-based event-driven services, including real-time market data processing, WebSocket layers, and service-oriented architectures.

TypeScript & Next.js
Development of modern frontend and full-stack applications using TypeScript, Next.js, React, and Prisma, with strict type checking and automated build/test validation workflows.

Testing & Quality Assurance
Utilization of Vitest, Playwright, and ESLint for automated testing, end-to-end smoke tests, and maintaining code quality in production-ready applications.

OpenCart & E-commerce Platforms
Deep experience with OpenCart-based e-commerce platforms, including product, order, customer, inventory, payment, shipping, and custom workflow modules.

Legacy Modernization
Refactoring and migrating legacy PHP/OpenCart and Delphi desktop codebases into maintainable, scalable modern architectures using Laravel and cloud-based solutions.

Experience

Professional experience10+ years
Freelancer since2010

Languages

EnglishFluent

Project history

Personal Project - Polinet Insurance Policy & Financial Management Platform

Private Repository (GitHub)
Enterprise insurance agency operations platform designed to migrate an existing Delphi desktop application to a Laravel-based web architecture. Includes legacy modernization, business-rule parity, agency ID-based data scoping, and compatibility with the existing Polinet schema. Technologies: PHP, Laravel, MySQL/MariaDB, Blade, JavaScript, Bootstrap, Vite.

Personal Project - Bi Dunya Taki Custom E-commerce Platform

Private Repository (GitHub)
Custom e-commerce application for silver jewelry sales with modular domain boundaries and production-ready architecture. Includes CI pipeline, Playwright E2E smoke tests, and provider/adapter approach for payments. Technologies: Next.js, React, TypeScript, PostgreSQL, Prisma, Better Auth, Tailwind CSS, Docker, Vitest, Playwright.

Personal Project - TradeForge Real-time Event-driven Market Analysis & Risk Platform

Private Repository (GitHub)
Service-oriented platform processing Binance Futures market streams in real time, managing signal analysis, risk controls, and secure testnet execution. Includes durable messaging, idempotency, risk gates, and reconciliation workflows. Technologies: Python, FastAPI, NATS JetStream, Redis, InfluxDB, Docker Compose, WebSocket.

PHP Backend Developer / Software Development Specialist

Istanbul Soft Bilisim ve Danismanlik Ltd. Sti.
Led end-to-end technical design, development, and production maintenance of product/catalog, order, customer, inventory, and integration modules for PHP/OpenCart-based e-commerce and B2B/C2C marketplace applications. Designed REST/SOAP integration layers for suppliers, marketplaces, payment providers, and shipping services. Developed data models and queries in MySQL and PostgreSQL; improved performance using Redis and ClickHouse. Refactored legacy PHP/OpenCart code and managed Git-based release and production support processes in Docker/AWS environments.

PHP Backend Developer / Software Development Specialist

Pusula Plus Insan Kaynaklari ve Bilisim Ltd. Sti.
Developed PHP backend modules, admin-panel features, API integrations, and database functionality for consulting projects. Analyzed production issues, implemented sustainable fixes, and delivered releases within short delivery timelines.

PHP Backend Developer / Software Development Specialist

Savran Pirlanta ve Saat A.S.
Developed and maintained PHP-based e-commerce and business applications supporting retail and import/export operations. Built product/catalog, order, admin-panel, and database-backed operational workflows for online sales processes.

PHP Backend Developer

Soten Grup Teknoloji A.S.
Developed custom PHP web applications, integration modules, admin panels, and reporting workflows. Performed development and production maintenance for REST/SOAP services, JSON/XML data exchange, and database structures.

PHP Backend Developer

Area Teknoloji Sistemleri Dagitim Pazarlama ve Sanayi Dis Tic. Ltd. Sti.
Developed PHP modules for B2B/B2C web systems and product/catalog management; handled backend maintenance, database operations, and feature development.

PHP Developer

Mobit Bilisim Elektronik Kont. Sist. Dis Tic. A.S.
Developed PHP/MySQL-based web applications, admin panels, and content/data flows; contributed to database design, query optimization, and backend issue resolution.

PHP Developer

Interactive Bilisim Teknolojileri Ltd. Sti.
Contributed to the development of PHP/MySQL-based websites, CMS platforms, and backend modules; supported frontend development with HTML, CSS, and JavaScript.

Portfolio


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