Java & Kotlin Expert
Enterprise Java & Kotlin Development Services Netherlands
Building robust, scalable backend systems and microservices architectures. Trusted by Goldman Sachs, ING, KLM, and APM Terminals for mission-critical applications.
Java & Kotlin Expertise
Microservices Architecture
- Spring Boot microservices
- Event-driven architecture
- Hexagonal & DDD patterns
Event Sourcing & CQRS
- Axon Framework expertise
- Kafka event streaming
- PostgreSQL optimization
Enterprise Integration
- RESTful API design
- GraphQL implementation
- Spring Security & OAuth2
Java & Kotlin Technology Stack
Java 17+KotlinSpring BootSpring CloudHibernateJPAKafkaRabbitMQPostgreSQLMongoDBRedisDockerKubernetesJenkinsMavenGradle
Enterprise Java Projects
APM Terminals - Event-Driven Platform
Kotlin + Spring BootHexagonal architecture with Axon Framework
Implemented event-driven workforce planning system using Kotlin, Spring Boot, and Axon Framework. Applied hexagonal architecture and tactical Domain-Driven Design for robust, scalable solution.
Read technical deep-dive →ING Labs - Invoice Trader Platform
Java 11 + SpringFull-stack factoring platform with real-time payments
Built fulfilment process with real-time payment processing, Spring Security authentication, and comprehensive testing with Cucumber and Selenium. Deployed on Azure cloud infrastructure.
View project details →Specialized Backend Expertise
Performance Optimization
- • JVM tuning and profiling
- • Database query optimization
- • Caching strategies (Redis, Hazelcast)
- • Reactive programming with Spring WebFlux
Security & Compliance
- • Spring Security implementation
- • OAuth2 and JWT authentication
- • GDPR compliance solutions
- • Secure API design patterns
Need Enterprise Java or Kotlin Development?
Let's build robust, scalable backend systems for your business. Available for projects throughout Netherlands and remote internationally.