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Medior Backend Developer (Kotlin)

Posted 5 Sep 2026
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Work experience
3 to 25 years
Full-time / part-time
Full-time
Job function
Degree level
Required language
English (Fluent)

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How you can make a difference

Are you ready to be a part of something transformative? Join AH Stores as a Medior Kotlin Developer and help reshape a traditional tech infrastructure into a modern, cutting-edge technology landscape that touches the lives of millions of customers daily.

As a Medior Kotlin Developer, you'll play a leading role in an ongoing transformation and microservice journey. If you enjoy working with technologies like Kotlin, Java, and Kafka to build impactful applications for the Stores landscape, this role offers that opportunity.

This is how you will reinvent food retail.

  • Build a greenfield microservices architecture on Kotlin/Java for the Stores Cluster.
  • Develop technical solutions in line with systems and business process architecture.
  • Develop proofs of concept, build code, implement and execute automated testing, ensure security and code quality, and develop best practices.
  • Further enhance technical standards and guidelines.
  • Work closely within a product team, participating in agile ceremonies, story refinement, code changes, deployments, and production support activities.
  • Share your expertise and contribute to initiatives in your product cluster and the broader AH Technology Platform.
  • Develop the team’s skills and processes to deliver value as quickly as possible.

As a Medior Engineer, you are an essential part of your product team. Your team develops and supports multiple applications delivering one or more capabilities for our brands in the Netherlands. You will work closely with the Product Owner and Product Architect to develop the technology landscape. Business technology and solution consultants will support you and the rest of the team to identify requirements and find the best possible solutions.

Your office.

Together with your team you will work on inspiring projects to accelerate our transition into a hybrid Food & Tech company. We want to leverage data and technology to future-proof food shopping and make healthy food more easily accessible for everyone. At Albert Heijn, you team up with inspiring peers in the data, digital and tech domains, a community of diverse individuals who share a common goal: to create digital solutions that make (online) shopping simpler and more inspiring.

Are you ready to reinvent the way millions of people buy and enjoy their food? We invest heavily in data, digital and tech, and that includes investing in your career. Our teams work in a hybrid way, both from home and in the office.

What matters most is being part of a high-belonging team where you can be yourself and feel safe, accepted and appreciated. So don’t check all the boxes? Don’t worry, we probably don’t either 😉.

What we offer.

  • 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.
  • An excellent pension plan with a strong employer contribution.
  • A travel allowance or NS-business card for travel to and from Zaandam by train.
  • Attractive discounts on various insurance policies.
  • 10% staff discount on groceries in all Albert Heijn stores, up to €300 per year.
  • A free Mijn Albert Heijn Premium membership with many benefits.
  • A company laptop and telephone.

The recipe for maximum impact.

  • A Technology/IT Engineering Master or Bachelor degree.
  • 3+ years of experience working as a Medior Engineer in a complex corporate technology environment.
  • Broad technical knowledge including Kotlin/Java, microservices, cloud (preferably Azure and OCI), APIs, and non-functional requirements such as scalability and technical security.
  • Knowledge of event streaming and messaging platforms such as Kafka is a big plus.
  • Knowledge and experience with Agile.
  • An outstanding command of English.
  • Excellent communication skills and the ability to work within a team.
  • Already located in the Netherlands.

About Albert Heijn as an employer.

Albert Heijn is building digital solutions that support millions of customers and continues to invest in technology, data, and digital innovation. The company combines the scale of a leading food retailer with the ambition to keep reinventing food retail through modern technology.

Meet your colleagues

“We need to offer the best digital experience: that's our goal!”

Robert Němec Solution Architecture Manager

“An endless race we must win”

Christy Elgee Manager of Cyber Defense and Operations, Ahold Delhaize USA

Bij Albert Heijn hebben we één grote missie: onze klanten iedere dag weer inspireren. Ook stellen we onszelf als doel om iedere dag te verbeteren.
Albert Heijn valt samen met Etos en Gall & Gall onder de lokale merken van Ahold Delhaize, een van de grootste foodretailgroepen ter wereld.
Op ons hoofdkantoor in Zaandam, bieden wij veel mogelijkheden op het gebied van leerzame stages, Internationale traineeships en startersfuncties binnen verschillende afdelingen.

Retail
Zaandam
Active in 3 countries
375,000 employees
50% men - 50% women
Average age is 30 years