Backend Developer Python

At Shiftbase, we build workforce software that helps people get work done. Thousands of teams across Europe rely on our platform every day to plan work, track time, and manage leave, freeing them from unnecessary admin so they can focus on what matters and what sparked their business. Our backend needs to scale in quality, reliability and speed of change.

As a Senior PHP-Backend Engineer , you are a key driver of both product delivery and platform modernisation. You work on the core of our backend, improving reliability, performance and scalability, with the explicit goal of turning Shiftbase from a platform people enjoy into a platform they love. You help evolve a mature monolithic codebase into a more modular, testable and future-proof architecture.

By modernising the foundation of the product, you directly enable better user experiences, faster iteration and higher overall product quality.

Design and deliver high-quality, scalable solutions for complex features and system components

Set the bar for technical craft through your contributions and code reviews

Define comprehensive testing strategies for complex features, championing quality within the team

Apply security best practices throughout the development lifecycle

Enable team growth

Help shape delivery practices and improve team velocity through data-informed decisions

You have deep backend engineering experience with complex, high-scale systems.

Modern PHP & architectural patterns: Comfort writing raw SQL (not just ORM abstractions) and working with complex relational schemas particularly around time-sensitive data like scheduling, timesheets and payroll where integrity and performance are critical.

Experience breaking down monoliths with good judgment about when distribution solves real problems (deployment bottlenecks, team autonomy) vs. when it adds unnecessary complexity.

Testing in legacy contexts: Practical experience with unit and integration testing, particularly incrementally improving coverage in existing systems.

You care about product quality, not just “shipping code”.

✅ You prefer being handed fully-defined solutions rather than helping shape them

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

~ Flexible working hours and remote-friendly with home–office balance tailored to how far you live from our office

~ Personal development budget of €1000 per year

~ Team BBQs, hackathons twice a year, and a strong engineering culture

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