Senior Backend Engineer (PHP)

TL;DR

Senior Backend Engineer (PHP): Developing a modern Symfony backend service to integrate with existing Drupal systems with an accent on scalable architecture and system modernization. Focus on designing REST APIs, optimizing database performance, and driving technical decisions for long-term system evolution.

Location: Must be based in Serbia (Belgrade, Novi Sad, or Nis) with a hybrid or remote work model.

Company

A high-growth technology partner providing innovative product development and engineering services.

What you will do

• Design and develop REST APIs using PHP 8+ and Symfony.
• Build scalable backend services integrated with existing Drupal and MySQL systems.
• Design database structures and optimize system performance.
• Collaborate with mobile developers on API contracts and integrations.
• Contribute to architectural decisions and long-term system evolution.
• Write clean, maintainable, and well-tested code.

Requirements

• Strong experience with PHP and Symfony in production environments.
• Experience building REST APIs and backend services from scratch.
• Excellent understanding of MySQL and database design.
• Experience with testing frameworks like PHPUnit.
• Solid understanding of software architecture and clean code principles.
• Must be based in Serbia to support hybrid office operations.

Nice to have

• Drupal experience.
• AWS knowledge.
• Docker or DDEV experience.
• Experience with shared-database or microservice architectures.
• Experience building mobile-focused APIs.

Culture & Benefits

• Private health insurance.
• Flexible work model with hybrid or remote options.
• Choice of professional equipment (laptop, monitor, accessories).
• Budget for professional development including courses and conferences.
• English and German language lessons during working hours.
• Modern office in Belgrade with a stocked kitchen and game area.