> Markdown version of [/jobs/ext/1430858-opening-backend-developer](https://www.wearedevelopers.com/jobs/ext/1430858-opening-backend-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # 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, Information Systems Security Architecture Professional, Microsoft Office, Software Engineering, SQL Databases, Symfony, Chatbots, Reliability of Systems, Technical Debt, Backend, Build Management, Code Testing, Data Management, Virtual Agents, Api Design - **Published:** July 25, 2026 - **Apply:** https://www.werk.nl/nl/vacatures/70499622 ## 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 framewo... ## Description Maak je werkgeversmerk zichtbaar, versterk je bereik en help je de juiste kandidaten te activeren. Brands Maak je employer brand zichtbaar. Meer instroom met slimme campagnes. Conversational AI Agent Soft conversion toolbox Slimme automatisering die tijd bespaart, processen versnelt en instroom vergroot. Talentpool heractivatie Heractiveer talent met slimme AI-flows. Recruitment AI Agent Jouw digitale collega in recruitment. Highlighted features - Onze kennisbank Alles wat je wil weten over recruitment AI tech Plan een demo MrWorkMrWork - Screen kandidaten en volg leads 24/7 op, zodat recruiters tijd besparen. - Onze kennisbank Alles wat je wil weten over recruitment marketing automation Plan een demo Contact Backend Developer (PHP Symfony) Fulltime | Medior / Senior Office-based 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 ## Related Videos - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Profiling Symfony & PHP apps with Blackfire](https://www.wearedevelopers.com/videos/265-profiling-symfony-php-apps-with-blackfire) - [Chatbots are going to destroy infrastructures and your cloud bills](https://www.wearedevelopers.com/videos/1130-chatbots-are-going-to-destroy-infrastructures-and-your-cloud-bills) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)