Kotlin (or Java) Backend Engineer

Backend Engineer with a pragmatic approach to building scalable distributed systems. I specialize in developing Kotlin (or Java) backend services, event-driven architectures, data pipelines and databases.
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Portfolio

Intergamma (Aug 2021 – Jan 2026)

Replaced a monolithic ordering system with modular microservices. Subsequently developed a new fulfilment system to improve order and shipment tracking and integrated the supplier's order lifecycle.
Fulfilment System

Bol.com (Jul 2017 – Jul 2021)

Built a campaign recommendation system, enhancing personalization and improving engagement.
Campaign Recommender System

GRPPY Rabobank (Sep 2015 – Jun 2017)

Built a social group payment system. GRPPY was the iDEAL solution for groups sharing and split bills.
Social Group Payment
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