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# Opening: Backend Developer

- **Company:** MrWork
- **Location:** Rotterdam, Netherlands
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** PHP (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Business Logic, Software Quality, Databases, Database Design, Information Systems Security Architecture Professional, Software Engineering, SQL Databases, Symfony, Database Optimization, Reliability of Systems, Technical Debt, Backend, Build Management, Code Testing, Data Management, Api Design
- **Published:** October 28, 2026
- **Apply:** https://www.werk.nl/nl/vacatures/71967138

## About the Role

Independently deliver backend features end-to-end, from technical design to deployment - Code Quality & Maintainability
Write clean, well-structured and well-tested code, and help raise the bar for the rest of the team Required Experience / Skills

 - AI Mindset
Interest in how AI can speed up and improve the way we build software - Backend Expertise
At least 3-5 years of experience with PHP and the Symfony framework - Database Design
Solid experience with SQL and database optimization (preferably RDS) - Engineering Practices
Strong focus on clean, maintainable and well-structured code, comfortable working in a mature codebase with established processes - Ownership Ment...

## Description

You are responsible for the technical backbone of MrWork's platform, with a strong focus on scalable backend systems, robust data management and a stable, secure architecture.
As a Backend Developer, you ensure the stability and continuity of our PHP/Symfony environment. You design and build complex business logic, help reduce technical debt, and improve system reliability across the platform. Key Responsibilities - Backend & API Development
Design and build complex business logic and high-performance APIs using Symfony - Database & Architecture Ownership
Manage, optimize and scale our RDS SQL architecture while ensuring stability and security across systems - Full-Cycle Delivery