Senior Java Developer
Location: Amsterdam, Netherlands
Work Model: Hybrid (1 day onsite per week)
Contract Duration: 6 Months
Start Date: August 2026
Experience Required: 10+ Years
About the Role
We are seeking an experienced Senior Java Developer to design, develop, and maintain enterprise-grade applications in a modern microservices environment. The ideal candidate has strong backend development expertise, experience with cloud-based CI/CD practices, and a passion for delivering high-quality, scalable software solutions within Agile teams.
Key Responsibilities
- Design, develop, test, and maintain Java-based enterprise applications.
- Build and enhance RESTful APIs and microservices using Spring Boot.
- Develop clean, maintainable, and scalable code following best practices.
- Write comprehensive unit and integration tests using JUnit and Karate/Cucumber.
- Collaborate with cross-functional Agile teams to deliver high-quality software.
- Participate in code reviews and ensure adherence to coding standards.
- Implement and maintain CI/CD pipelines.
- Troubleshoot production issues and optimize application performance.
- Contribute to continuous improvement and adoption of modern development practices.
Required Skills & Experience
Core Technologies
- 10+ years of Java software development experience.
- Strong experience with:
- Java 8 and Java 11
- Spring Boot
- Spring Framework
- Spring Batch
- Spring Security
- JAX-RS
- Kotlin
- Strong understanding of Microservices architecture.
- Experience developing REST APIs and working with HTTP and JSON.
Testing
- Experience writing:
- Unit Tests using JUnit
- Integration Tests
- API testing using Karate or Cucumber Framework
DevOps & CI/CD
- Hands-on experience with:
- Azure DevOps
- Git
- Maven
- Jenkins
- Ansible
- Artifactory
- Experience with:
- Azure repositories
- Code reviews
- Application deployment
- CI/CD pipelines
Databases & Infrastructure
- Experience with NoSQL databases, preferably Cassandra.
- Good knowledge of Linux environments.
Preferred Experience
- Banking or Payments domain experience.
- Passion for Open Source technologies.
- Experience working in large enterprise environments.
Soft Skills
- Strong analytical and problem-solving abilities.
- Excellent project and time management skills.
- Proactive, collaborative, and team-oriented mindset.
- Ability to work independently when required.
- Passion for learning and adopting new technologies.
- Strong communication and knowledge-sharing skills.
Working Environment
- Agile development environment.
- Hybrid working model with one day per week in the Amsterdam office.
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