Senior Backend Engineer (PHP)

Dyflexis · The Hague, Netherlands
Location
The Hague, Netherlands
Work mode
Hybrid
Type
Full-time
Seniority
Senior
Salary
€4,500–6,500 / month
Department
Development
Posted
24 Jul 2026

Verified open 2 Nov 2026 · Source: Recruitee

About the role

At Dyflexis, we help millions of employees worldwide with our workforce management software. From the bakery around the corner to international hotel and retail chains. The software is powerful, customer questions are diverse, and no two days are the same. You'll get to know the product inside out and contribute to something that's growing rapidly in more than 20 countries.

How do we do it? We work in a fast-paced environment with short communication lines. There are no unnecessary meetings and no politics.

Our Focus? Ownership, clear communication, and getting things done together. We move quickly, learn by doing, and continuously improve how we support our customers. We’re scaling across Europe and into the US, and we need a Senior Backend Engineer who turns complex labour rules into clean, reliable code.

Requirements

This is what you'll do

As our Backend Engineer, you'll build the engine behind our platform: designing features that hold up under enterprise traffic, optimizing the paths that can't afford to crack, and partnering closely with Frontend, Product, and DevOps to turn business needs into systems that simply work. Reliability doesn't just happen here, we design for it. You care about clean code, resilient systems, and top notch performance.

  • 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 through reviews, pairing and design sessions.

  • Work in focused 6-week cycles, a deliberate post-scrum method built for builders.

This is what you'll need

  • 5+ years in backend development, including at least 2 in a senior role making architecture decisions.

  • Deep PHP (Symfony) experience.

  • You’ve optimised MySQL in production and modelled a complex domain with DDD, and you can explain your choices.

  • Business sense: you ask what problem a feature solves before you build it.

  • Ownership: you ship it, you own it, also when it breaks.

  • You flag risks early and share updates without being asked.

  • You’ve helped other engineers grow.

  • Docker and GitLab CI/CD. Kubernetes is a plus

What you'll get

At Dyflexis, you'll be part of an ambitious, energetic, and customer-focused team. We offer:

  • Fixed salary up to €6.500 gross per month based on a 40-hour week (skill based).

  • Personal development budget to level up your skills.

  • 25 vacation days + your birthday off in exchange for cake.

  • An in-house chef surprising you daily with fresh lunch.

  • The best parties, drinks & trips (Winter sports, Ibiza & more).

  • Membership at ARJ Training boxing gym (home of champion Tarik & Levi Rigters).

  • Solid pension plan & 8% holiday allowance.

  • Buy or sell vacation days - you decide.

  • Travel allowance and WFH compensation.

  • Friday chair massages to kick off your weekend.

Apply now

Ready to raise the backend standard and help take Dyflexis across Europe and into the US? Hit apply. No cover letter needed, we’ll ask a few questions and get back to you quickly.


Note: Contact by job agencies and recruiters will not be appreciated.

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