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Java/Kotlin Backend Engineer for Health Data Platform
Builds and maintains Java/Kotlin backend services that process large-scale health data to power a platform with global medical impact.
Java/Kotlin Backend Engineer
Build and scale an open-source e-health data platform in Java/Kotlin, using Kafka, GCP, Docker and Terraform to process massive medical datasets and power global research.
Senior Backend Engineer
Senior backend engineer building microservices and event-driven systems in Kotlin/Java (Spring Boot/Cloud) or Node/Typescript, deploying cloud-native apps with Terraform.
Backend Engineer - FinTech Platform, Kotlin/KTOR
Builds and maintains the backend of a SaaS pricing and billing platform using Kotlin and Ktor, working with PostgreSQL and collaborating across product, design, and sales teams.
Backend Engineer (Junior / Medior Level)
Build and maintain a distributed billing platform in Kotlin/KTOR, PostgreSQL, Kafka and GCP; ship features weekly and collaborate across product, sales and design.
Senior Kotlin Backend Engineer
Senior Kotlin backend engineer building event-driven microservices for global ecommerce and logistics systems using Kotlin, Quarkus, Kafka, and Spring Boot.
Lead Java/Kotlin Backend Engineer Utrecht
Lead a new JVM backend practice, designing and building scalable event-driven systems in Java/Kotlin for enterprise clients while shaping team culture and tooling.
Senior Backend Engineer New Amsterdam
Build and run production-grade backend services in Kotlin/Java with Spring Boot on cloud platforms, ensuring clean code, test coverage, and Kubernetes-based CI/CD.
Senior Backend Engineer (Kotlin)
Senior backend engineer building Kotlin microservices for a global auction platform, using Azure cloud, event-driven systems, and functional programming.
Senior Backend Engineer (Kotlin/Scala)
Build and evolve Vandebron’s energy-trading backend, migrating from Scala/ZIO to Kotlin/Spring Boot while designing scalable microservices that keep the grid 100% green.
Medior DevOps engineer
Build and maintain microservices and web apps for Dutch train scheduling using Java, Spring Boot, Kubernetes, and Angular to keep the national rail system running.
Senior Backend Engineer (Scala/Kotlin)
Build and evolve Vandebron’s energy-trading backend, migrating from Scala/ZIO to Kotlin/Spring Boot while designing scalable microservices for green energy infrastructure.
Backend Engineer (Kotlin) — Scalable APIs & Integrations
Builds and maintains Kotlin/Java backend services and APIs for a major supermarket chain, using Spring Boot and DevOps practices.
Java Backend Engineer: Real-Time, Scalable Systems (Hybrid)
Builds and scales real-time, event-driven Java systems that power the Netherlands’ energy transition, using Java 21, Spring Boot, AWS, and distributed architectures.
Senior Backend Engineer Scala/Kotlin Utrecht
Build and run event-driven backend services in Scala/Kotlin that process real-time logistics data at global scale, ensuring high availability and correctness for physical goods flows.
Kotlin Backend Engineer for Promotions | Flexible Hours
Backend engineer building Kotlin microservices and RESTful APIs to power sales promotions and campaigns for a major Dutch retailer.
Backend Software Engineer Amsterdam
Build and scale backend services in TypeScript and PostgreSQL on GCP for a telecom-focused startup, focusing on global connectivity, billing, and distributed systems.
Backend Software Engineer
Build and scale backend services in TypeScript for a telecom-focused platform, focusing on distributed systems, billing, and global connectivity on GCP.
Backend Engineer
Build core financial infrastructure for global commerce: payment flows, multi-currency ledgers, real-time tax engines, and AI-powered compliance tools from scratch.
Backend Engineer (Various Levels)
Build and maintain a distributed billing platform in Kotlin/KTOR with PostgreSQL, Kafka, and GCP; ship features weekly and collaborate across product, sales, and design.