PHP Developer Nextcloud / OSS [gn]

LUMASERV GmbH; Koblenz; On-site; EUR 50,000 - 70,000; Full time

Job summary

A technology solutions provider in Rheinland-Pfalz is seeking a PHP Backend Engineer to develop and maintain customer projects serving millions of users. The role involves building scalable backend solutions using Laravel, contributing to open source products, and working closely with teams to ensure high-quality code. Ideal candidates should have extensive PHP backend experience, knowledge of web security, and familiarity with database technologies. This position offers a dynamic environment for technical growth.

Qualifications

• Extensive professional experience in PHP backend development on enterprise level.
• Advanced experience with Git and Git flows.
• Strong understanding of web security principles and common vulnerabilities.

Responsibilities

• Develop and maintain customer projects using Laravel.
• Contribute to large open source products.
• Design and develop REST APIs using domain-driven design.
• Perform regular code reviews and monitor application performance.

Skills

PHP backend development

Schema design

Git and Git flows

Automated testing (PHPUnit, Pest)

Project management tools

Web security principles

Local development setups (Docker)

Tools

Laravel

MySQL

MariaDB

Redis

Doctrine/DBAL

Job description

Summary

As a PHP Backend Engineer at LUMASERV, you'll play a key role in developing and maintaining customer projects that serve millions of users daily. You will publicly contribute to large open source products that we’re working with and you'll work closely with our product managers, developers, and architects to build robust, scalable backend solutions using modern PHP frameworks, particularly Laravel.

If you appreciate clean code, domain-driven design, and the elegance that Laravel brings to application development, this position offers you the opportunity to shape the technical direction of projects while writing high-quality code every day.

Qualifications

• Extensive professional experience in PHP backend development on enterprise level
• Experience with schema design and and software modelling
• Advanced experience with Git and Git flows
• Proficiency in writing automated tests (PHPUnit, Pest)
• Experience with project management tools (e.g. Linear or Notion)
• Strong understanding of web security principles and common vulnerabilities
• Strong experience with local development setups based on Docker

Description

• You have first experience with open source products including Nextcloud or Laravel
• You're experienced in using Git and contributing to public repositories
• You design and develop REST APIs (sometimes GraphQL) using domain-driven design that integrate seamlessly with frontend applications and external systems
• You will contribute ideas and concepts for new features to bring open source products to their next level
• You perform regular code reviews and help establish best practices within the team
• You monitor application performance and gain insights using state-of-the-art APM tools (application performance monitoring)
• You challenge and improve coding standards with your colleagues
• You work with scalable databases (MySQL, MariaDB, Redis) to design efficient data models and queries
• You have experience with Doctrine/DBAL
• You participate in technical planning sessions and contribute to architectural decisions with your team

Desired qualifications

• Experience with domain-driven design and software architecture
• Experience with asynchronous processing
• Contributions to open-source projects or active participation in the developer community
• Familiar with application performance monitoring