Senior PHP Backend Developer at inttrust

Setup: Hybrid
Location: Athens, Attica
Type: Full-time
Level: Senior
Posted: May 27, 2026

Description

InTTrust is looking for a Senior PHP Backend Developer with strong Symfony expertise to join their team. The role involves designing, developing, and maintaining high-quality backend services and APIs using Symfony, collaborating with cross-functional teams, and ensuring application performance and reliability. The developer will work directly onsite at client premises within the energy sector.

Required Skills

Symfony
Doctrine ORM 2
MySQL
Object-Oriented Programming (OOP)
RESTful APIs
PHPUnit
Git
CI/CD pipelines
Docker

Additional Information

Required Previous Experiences: at least two production projects with Symfony
Proven experience with Doctrine ORM 2
Hands-on experience with Symfony Messenger for asynchronous message handling.
Experience designing and implementing webhook handling.
Proven experience with MySQL — schema design, migrations, indexing, and basic query optimization.
Strong understanding of Object-Oriented Programming (OOP) principles and common design patterns.
Experience in designing and consuming RESTful APIs.
Testing discipline with PHPUnit or Pest (Feature + Unit tests).
Proficiency with Git and conventional commits.
Familiarity with CI/CD pipelines.
Working knowledge of Docker.
A minimum of 4 years of experience developing and maintaining backend services with PHP.
Preferred Qualifications: Experience with cloud services (GCP preferred; AWS or Azure also welcome).
Static analysis tooling (PHPStan level 5+) and code style tooling (Pint, Rector).