vacatures bij DifferentLab

Shiftbase logo

Senior PHP Backend Developer

• Hybrid
• • Zoetermeer , Zuid-Holland , Netherlands
• €5,000 - €7,000 per month
• IT / Engineering

Job description

At Shiftbase, we believe time is too valuable to waste on admin. That's why we've built a fast-growing, scalable platform that helps shift-based companies manage scheduling, time tracking, and leave more efficiently and thus freeing them to focus on what matters. With over 8,500 customers across Europe and a goal to help 250,000 businesses by 2034, we're on an exciting growth journey. Join our driven team of 75+ professionals in Zoetermeer, where speed, ownership, and innovation define how we work. At Shiftbase, you'll collaborate with top talent, shape smarter tech, and make a real impact on thousands of businesses every day.

Why join us?

Real impact: Your work powers a platform used daily by tens of thousands of people across Europe.

Strong foundations: Modern PHP, modular architecture, CI/CD, and a culture of continuous improvement.

Growth mindset: Join a talented team that values learning, ownership, and pragmatic solutions.

Forward-looking: From Open APIs to AI-enhanced functionality, we're building the next-gen workforce platform.

About the role

As a Backend Engineer, you'll be shaping the engine behind a high-impact SaaS platform. You'll design and build scalable backend functionality that solves real-world problems for our users, while helping modernize a robust codebase for the future. We're evolving a mature monolith into a modular, testable system that supports our rapid growth. You'll work on everything from API design to performance-critical processes and contribute to our ongoing shift toward clean architecture, automation and better developer experience.

What you'll do

• Build and optimize backend features that drive real user value

• Design, document and maintain our Open API for both internal and external use

• Refactor legacy components into modular, scalable services

• Write automated tests and support CI/CD best practices

• Collaborate with frontend, product and infrastructure teams

• Improve performance in complex queries, calculations and processes

• Enhance Developer Experience and reduce onboarding friction

What we're looking for

• 3+ years of backend experience with PHP (Laravel, Symfony, or similar)

• Comfortable with test automation (PHPUnit, Playwright) and CI/CD pipelines

• Skilled at balancing new feature delivery with long-term code quality

• Strong communicator who collaborates well across disciplines

• Passionate about clean code, simplicity and long-term maintainability

• Curious and open to evolving architectural approaches and tools

Bonus: Experience with DDD, Hexagonal Architecture, TypeScript, or API-first development

What we offer

• Competitive salary

• 25 vacation days (based on 40-hour contract)

• Flexible working hours, hybrid-friendly

• NS Business Card & travel reimbursement

• Personal development budget

• Team BBQs, quarterly hackathons, and a strong engineering culture

• Influence on building our engineering culture

Interested?

If you'd like to be part of our journey, please apply directly - we're looking forward to hearing from you!

Ready to make an impact at a fast-growing tech scale-up? Apply now or email us at if you have any questions.

Apply

Hybrid

• Zoetermeer , Zuid-Holland , Netherlands

€5,000 - €7,000 per month

IT / Engineering