Senior Backend Engineer - International & European Projects

Altia; Brussel Hoofdstad; On-site; EUR 70,000 - 90,000; Full time

Job summary

Altia in Belgium seeks a Senior Back-end Software Engineer to join our international team. You will design, implement and maintain scalable back-end services using PHP or other languages, with a focus on robust APIs and data models.

You will work on an European regulatory project, collaborating across teams, applying Docker/Kubernetes, CI/CD, and security best practices. Fluent English required; EQF level 7+ with extensive experience.

Qualifications

• EQF Level 7 or 6 with extensive experience in backend development.
• Strong English (B2) written and spoken.
• Proficiency in PHP or other backend languages; MVC frameworks and OOP.

Responsibilities

• Develop, maintain and evolve backend software components.
• Design robust REST APIs with OpenAPI/Swagger, with secure storage and logging.
• Collaborate on architecture, data modelling and database choices (SQL/NoSQL).
• Contribute to DevOps practices: Git, CI/CD, Docker, Kubernetes.

Skills

PHP

REST APIs

OOP

MVC Frameworks

Laravel

Symfony

Spring Boot

MySQL

PostgreSQL

Oracle

NoSQL

OpenAPI/Swagger

OAuth 2.0

OpenID Connect

JWT

Git

Docker

Kubernetes

CI/CD

Dynatrace

Splunk

Elastic APM

Education

EQF Level 7 degree

EQF Level 6 degree

Secondary education with access to higher education

Tools

Drupal 8+

Dynatrace

Splunk

Elastic APM

Job description

Altia in Belgium seeks a Senior Back-end Software Engineer to join our international team. You will design, implement and maintain scalable back-end services using PHP or other languages, with a focus on robust APIs and data models.

You will work on an European regulatory project, collaborating across teams, applying Docker/Kubernetes, CI/CD, and security best practices. Fluent English required; EQF level 7+ with extensive experience.