Senior PHP Backend Developer
We are Xelerit 🚀 a tech partner for companies in the Netherlands and Poland. We are remote-first, but also offer a modern office in Gdańsk for those who enjoy hybrid work. We create smart digital solutions that help businesses grow, adapt, and innovate. Our expertise spans software engineering, cloud, AI & ML, UI/UX and testing. Whether building scalable apps or integrating next-gen tech, we focus on real impact. At Xelerit, we value curiosity, openness, and collaboration in a culture where people enjoy what they do and grow together 🌱
We are looking for a skilled Senior PHP Backend Developer to join our client Creon and strengthen their development team
Your main responsibilities will include:
Maintaining and improving existing monolithic systems: ERP, WPS (Windows Production System), and Creon Online (an online store).
Implementing automation for repetitive tasks (e.g., call summaries, automated email responses) using 3rd-party and AI tools.
Enhancing the online shopping experience by building an advanced quotation tool for business clients.
Implementing tracking and marketing tools to further increase sales.
Refactoring and optimizing legacy code, including modularization.
Conducting security updates and replacing unsupported packages.
Reworking communication between different applications and improving data uploads.
Writing clean, scalable, and testable code.
Reviewing your team members’ code and suggesting improvements.
Contributing to improvements in application architecture and promoting best practices.
Our current stack:
Laravel 12
PHP 8.3 / 8.4
MariaDB
What we’re looking for:
✅ 5+ years of professional experience
✅ Strong communication skills and ability to understand complex requirements
✅ Ability to collaborate closely with non-technical stakeholders
✅ Excellent knowledge of PHP
✅ Solid experience with Laravel, Symfony, Zend Framework, or similar frameworks
✅ Proven expertise in code refactoring and database optimization
✅ Strong knowledge of OOP and design patterns
✅ Good knowledge of HTML5 and CSS3
✅ Fluent command of Polish and English (spoken and written)
Nice to have:
✅ Experience with DevOps and CI/CD tools
✅ Experience with ERP systems in production
✅ Familiarity with GitLab
✅ Interest in modern AI tools
✅ Familiarity with Azure
Our offer:
💲 Long-term B2B cooperation
📍 Full flexibility – work fully remotely or in hybrid mode from our office in Gdańsk
🥇 Personal development budget + private medical care (Medicover) + sports card (Medicover Sport)
🤸♂️ A relaxed atmosphere with no bureaucracy or unnecessary formalities

Xelerit
We are Xelerit 🚀 a tech partner for companies in the Netherlands and Poland. We are a hybrid company combining remote work with a modern office in Gdańsk for in-person collaboration. We create smart digital solutions th...
Senior PHP Backend Developer
Senior PHP Backend Developer