Senior Backend Engineer (PHP)

Up to €6.5K/month | 📍Hybrid | PHP (Symfony) 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 other 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. Right now, we're scaling across Europe and into the US, and we need a Backend Engineer that can carry that weight. This is what you'll do As our Senior 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 Infrastructure to turn business needs into systems that simply work. Reliability doesn't just happen here, we design for it. You care about clean data, resilient systems, and performance that never cracks. Not because anyone will see your code, but because they'll feel it when it fails. At Dyflexis, that's not an option. Design features that handle enterprise traffic across regionsOptimize critical paths for performance and reliabilityFollow patterns for code quality, testing, and release readinessPartner with DevOps on deployments and monitoringChampion operational excellence in engineering decisionsMentor engineers who are growing fastWork in focused 6-week cycles, a deliberate post-scrum method built for builders This is what you'll need 5+ years building backend systems that hold up under production traffic, with a hand in the architecture decisions behind themSolid experience with PHP (Symfony) and relational databases including MySQL, with real query optimization behind youYou've debugged race conditions that only appeared under load, and fixed databases that were keeling overComfortable with the trade-offs between consistency, availability, and partition toleranceYou think in systems, not tickets. When someone proposes a feature, you're already mapping failure modesComfortable with ownership: you ship it, you own it, you sleep soundlyExperience with Redis, Docker, Kubernetes, and GitLab CI/CD 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.