Backend developer (Kotlin, Event-Driven, DevOps) - Mechanization, Zaandam

Help build the integration backbone powering warehouse mechanization. As our new Backend Engineer, you will design and develop services that connect WMS, integration platforms, and mechanized systems (WCS), enabling reliable and scalable data exchange across the supply chain. Operating in a distributed and event-driven environment, you will work on systems that handle real‑time flows of orders, stock, and operational events. Your contributions will be key to ensuring data consistency, system resilience, and the smooth coordination between digital systems and physical warehouse operations.

Build systems that matter at real scale. In this role, you will design and build backend services that support business‑critical processes used daily across the organization. Your work directly impacts system reliability, developer productivity, and the ability of teams to deliver features faster and more safely. You will work on production systems at scale, where performance, resilience, and maintainability are first‑class concerns.

Responsibilities

Design, develop, and operate backend services using modern engineering practices.

Work with technologies such as Kotlin, event‑driven architectures with Kafka.

Take ownership of services end‑to‑end: from design and implementation to production support and continuous improvement, including DevOps concerns.

Collaborate closely with product, platform, and other engineering teams to make pragmatic technical decisions.

How We Work

Engineers have real ownership and autonomy in technical decisions within architectural guiderails.

We supercharge our development workflow with DevAI tooling, automating where possible to focus on creative problem‑solving.

Code quality matters: peer reviews, clear architecture, and readable code are part of daily work.

Technical debt is acknowledged and addressed, not ignored.

We value simple, robust solutions over unnecessary complexity.

Why This Role Is Interesting for Engineers

Work on systems with real users and real impact.

Face non‑trivial engineering challenges around scalability, data flow, and reliability.

Have time and space to improve both the codebase and the way we work.

Grow technically through exposure to complex systems, experienced engineers, and meaningful ownership.

Qualifications

Experience with Kotlin.

5+ years of experience with key technologies: Spring Boot, GitHub Actions, Kubernetes, Postgres, Kafka, and Azure Cloud.

CI/CD expertise: confident working with continuous integration and deployment, including test automation and release engineering.

Experience with iterative development in cycles and adapting as needed.

Solid grasp of best practices: clean code, security, test automation, and cloud concepts.

Excellent English communication skills.

Full‑stack mentality: while you are an expert in Kotlin you will also be involved in React front‑end development with team front‑end experts.

Business‑technical translation: able to turn business needs into technical solutions and work closely with stakeholders.

Continuous improvement mindset: spotting opportunities for improvement and helping shape the technical roadmap.

Benefits

Annual salary up to€80k plus holiday allowance and a flexible bonus, depending on experience.

45 days of paid leave: 25.5 regular vacation days and 19.5 ADV days.

Flexible working hours.

Access to a challenging training curriculum– AH Tech Academy.

Excellent pension plan with employer contribution higher than the employee contribution.

Travel allowance or NS‑business card for traveling by train to Zaandam.

Attractive discounts on various insurance policies.

10% staff discount on groceries in all Albert Heijn stores, up to€300 per year.

Free Mijn Albert Heijn Premium membership with many benefits.

Company laptop and telephone.

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