Senior Java Automation Developer

October 6, 2026

Hybrid

Senior

El Prat de Llobregat, Spain

Worth knowing

English is required

Description

Giesecke+Devrient is hiring a Senior Java Automation Developer to lead the design and implementation of an automation framework for a cloud-native, microservices-based Trusted Service Manager backend. The role covers Java/Spring Boot 4 microservices, cryptography operations and API-first services running on Kubernetes. The engineer will build automated test suites, advanced security testing (DAST, fuzz) and integrate tests into CI/CD while mentoring the team in an agile environment.

Responsibilities

Lead the design, development, and maintenance of test automation frameworks for TSM backend microservices (Java, Spring Boot 4, Spring Cloud, MongoDB)
Implement comprehensive automated test suites (unit, integration, API, end-to-end) for cloud-native services deployed on Docker/Kubernetes
Design and execute advanced security testing: DAST and fuzz testing for APIs and cryptographic operations
Build automation around API-first architectures (REST, OpenAPI), including contract testing and API validation
Integrate automated tests into CI/CD pipelines, ensuring high coverage and fast feedback for every deployment
Incorporate cryptography-related validation into test suites, including PKI workflows, X.509 certificates, and secure key usage
Apply agile methodologies (Scrum), TDD, BDD, and secure coding/testing best practices (SAST, DAST)
Collaborate closely with backend developers, DevOps engineers, QA, and security teams to ensure robust and secure software delivery
Contribute to test observability and reporting, improving traceability, logging, and metrics for test runs
Mentor team members on test automation strategies, frameworks, and tools

Requirements

University degree in Computer Science, Software Engineering, or a related field
Strong experience as a Java developer with a focus on test automation
Hands-on experience building automation frameworks for microservices (Java, Spring Boot)
Hands-on experience building automation frameworks for API-first services (REST, OpenAPI)
Solid understanding of cloud-native architectures and deployments (Docker, Kubernetes)
Strong knowledge of security testing methodologies (DAST, fuzz testing)
Strong knowledge of SAST/DAST integration into CI/CD pipelines
Deep understanding of cryptography, PKI, and X.509 certificates, and how to validate them in automated tests
Experience working in agile teams (Scrum), with TDD and BDD
Familiarity with large-scale, high-availability distributed systems from a testing and reliability perspective
Proficient with Jira and Confluence
Proficient with Git (GitLab/GitHub)
Proficient with SonarQube, Jenkins, Nexus, Maven
Strong problem-solving skills, capable of analyzing complex systems and designing effective test strategies
Excellent communication skills and a collaborative, team-oriented mindset
Fluent English (spoken and written)

Conditions

Professional, dynamic environment where collaboration, teamwork, and innovation are valued
Be part of a team where your ideas and contributions have real impact
Schedule: Mon-Thu 8:30-17:30h, Fri 8:30-15:30h with 1h flexible start time
Hybrid work options available
Permanent contract, annual training plan, summer intensive schedule, company parking
Flexible compensation (transport, childcare, training, health insurance)
Onsite cafeteria with breakfast and lunch at subsidized prices
Location near Mercabarna exit, accessible by bus from Barcelona or El Prat

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