Senior Fullstack Developer

GeekSoft Consulting | Fixed Term Employment

Senior Fullstack Developer

Amsterdam, Netherlands | Posted on 09/29/2026

• Help design, build and continuously improve the clients online platform.
  
• Research, suggest and implement new technology solutions following best practices/standards.
  
• Take responsibility for the resiliency and availability of different products.
  
• Be a productive member of the team.
  

Requirements

• Senior Full Stack Developer with strong expertise in Java, Angular, Python, and SQL, with optional experience in React.
• Design and develop full-stack applications using Java, Angular, Python, and SQL.
• Work extensively with Java JDK 17 as the primary programming language.
• Develop applications using Spring Framework 5.2 and Spring Boot 2.7, including Web, Data JPA, Security, and OAuth2 modules.
• Design and implement secure and high-performance REST APIs.
• Work with Maven 3 for build and dependency management.
• Develop and deploy containerized applications using Docker, Kaniko, Helm, and Kubernetes.
• Collaborate with DevOps teams on CI/CD pipelines and cloud deployments, including Azure.
• Work with GitLab CI/CD and JFrog Artifactory.
• Develop and optimize solutions using SQL and NoSQL databases, including PostgreSQL, MongoDB, and Neo4j.
• Work with NgRx, RxJS, Node.js 18, Angular Material, and Google Material Design.
• Implement unit and integration testing using JUnit and Mockito.
• Ensure code quality and security through tools such as SonarQube and Black Duck.
• Create and maintain technical documentation using Atlassian Wiki.
• Work within Agile/Scrum and SAFe methodologies using tools such as Jira and Jira Align.
• Hands-on experience with Spring Framework and Spring Boot 2.7.
• Strong knowledge of Spring Web, Data JPA, Security, and OAuth2.
• Experience developing secure, scalable, and high-performance REST APIs.
• Strong SQL and NoSQL database experience.
• Experience with Docker, Kubernetes, Helm, and CI/CD.
• GitLab, JFrog Artifactory, and Azure cloud experience.
• Experience with JUnit, Mockito, SonarQube, and Black Duck.
• Strong understanding of Agile/Scrum; SAFe experience is preferred.
• Good documentation and communication skills.
• Python and React.js experience is an advantage.

Fixed Term Employment Contract

Work-Life Balance

Flexible Work Mode

What GeekSoft Consulting Offers

• International, collaborative consulting culture with clear career development paths.
  
• Comprehensive Dutch benefits package emphasizing well-being, mobility, and career growth.