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

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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

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• 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

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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

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• Banking or Payments domain experience.
• Passion for Open Source technologies.
• Experience working in large enterprise environments.

Soft Skills

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• 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

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• Agile development environment.
• Hybrid working model with one day per week in the Amsterdam office.

Apache, Security, GIT, JUnit, Linux, Maven, Spring, Testing