Senior PHP Backend Engineer for Enterprise Scale

Dyflexis; Den Haag; Hybrid; EUR 66,000 - 79,000; Full time

Benefits offered by this job

Personal development budget

25 vacation days + birthday off

In-house chef

Company events

Gym membership

Job summary

Dyflexis is seeking a Backend Engineer to build the engine behind our platform, designing features that handle enterprise traffic and partnering with Frontend, Product and DevOps to deliver reliable, scalable systems. You’ll own end-to-end delivery and contribute in focused 6-week cycles.

You will mentor engineers, work with cross-functional teams, and help scale our product as we expand across Europe and the US. A strong focus on ownership and clear communication is essential.

Qualifications

• 5+ years building backend systems that hold up under production traffic, with real input into the architecture decisions behind them
• Solid experience with PHP (Symfony) and relational databases like MySQL, including hands-on query optimization
• Experience debugging complex code and functionality using metrics and monitoring
• A business-first thinker: familiar with Domain-Driven Design (DDD), making sure business rules are clearly and correctly implemented in code
• Comfortable with ownership: you ship it, you own it
• Proactive by default: you flag risks and blockers early, and give status updates without being asked
• Experience with Docker and GitLab CI/CD; Kubernetes is a plus

Responsibilities

• Create technical designs for features that handle enterprise traffic across regions, and optimize the critical paths for performance and reliability
• Champion operational excellence, from code quality and testing to release readiness
• Collaborate with Product Owners, UX designers, and DevOps to turn business needs into working systems, owning it end to end and flagging early when something’s off track
• Mentor engineers who are growing fast
• Work in focused 6-week cycles, a deliberate post-scrum method built for builders

Skills

DDD

Ownership

Backend design

Tools

PHP (Symfony)

MySQL

Docker

GitLab CI/CD

Kubernetes

Job description

Dyflexis is seeking a Backend Engineer to build the engine behind our platform, designing features that handle enterprise traffic and partnering with Frontend, Product and DevOps to deliver reliable, scalable systems. You’ll own end-to-end delivery and contribute in focused 6-week cycles.

You will mentor engineers, work with cross-functional teams, and help scale our product as we expand across Europe and the US. A strong focus on ownership and clear communication is essential.