We are looking for a Senior Java Backend Developer to lead the design, development, and maintenance of secure, scalable, cloud-native microservices for our Trusted Service Manager (TSM) platform. This role focuses on backend development with Spring Boot 4, cryptographic operations, automation, and test-driven practices in a Kubernetes-based environment.
Lead the end-to-end development and implementation of TSM backend services and microservices.
Design, develop, and optimize robust Java backend applications using:
Spring Boot 4 (including Spring Boot Actuator)
Spring Cloud
Spring Data
Build, deploy, and operate cloud-native applications using:
Docker containers
Design data models and access layers using MongoDB for scalable, high-performance storage.
Drive automated testing and quality assurance:
Unit, integration, and end-to-end test automation
Security testing (SAST, DAST)
Apply and advocate agile methodologies (Scrum), engineering best practices, and secure coding standards.
Collaborate closely with architects, product owners, QA engineers, and other developers to deliver high-quality solutions.
Contribute to observability and operations using Spring Boot Actuator and monitoring/logging tools.
Creamos confianza en la era digital con tecnologías de seguridad integradas en tres áreas de negocio: Seguridad Digital, Plataformas Financieras y Tecnología Monetaria. Somos un grupo tecnológico internacional y una empresa familiar tradicional con más de 14,000 empleados en 40 países. Quizás es pronto para ti también?
Position: Senior Java Backend Developer – Cloud-Native Microservices & Cryptography




We are looking for a Senior Java Backend Developer to lead the design, development, and maintenance of secure, scalable, cloud-native microservices for our Trusted Service Manager (TSM) platform. This role focuses on backend development with Spring Boot 4, cryptographic operations, automation, and test-driven practices in a Kubernetes-based environment.
Lead the end-to-end development and implementation of TSM backend services and microservices.
Design, develop, and optimize robust Java backend applications using:
Spring Boot 4 (including Spring Boot Actuator)
Spring Cloud
Spring Data
Build, deploy, and operate cloud-native applications using:
Docker containers
Kubernetes (K8s)
Design data models and access layers using MongoDB for scalable, high-performance storage.
Drive automated testing and quality assurance:
Unit, integration, and end-to-end test automation
Security testing (SAST, DAST)
Apply and advocate agile methodologies (Scrum), engineering best practices, and secure coding standards.
Collaborate closely with architects, product owners, QA engineers, and other developers to deliver high-quality solutions.




Contribute to observability and operations using Spring Boot Actuator and monitoring/logging tools.
University degree in Computer Science, Software Engineering, or a related field.
Extensive experience as a senior backend Java developer.
Spring Boot (v4), including Spring Boot Actuator
Spring Cloud and Spring Data
Professional experience designing and implementing microservices in cloud-native environments.
Proficiency in MongoDB, including schema design, performance tuning, and operational considerations.
Solid knowledge of Docker and Kubernetes for containerized deployments and orchestration.
Experience in agile teams (Scrum) with:
Automated testing strategies
Security testing (SAST, DAST)
Hands‑on experience with Atlassian and DevOps tooling:
Jira, Confluence
Git (GitLab/GitHub)
SonarQube, Jenkins, Nexus, Maven
Fluent English (spoken and written).
Experience developing SDKs (Java or other languages) for external integration.
Knowledge of client application development (e.g., mobile or desktop clients interacting with backend APIs).
Background in financial services, payment systems, or digital currency projects.
This role is idóneo for a senior backend engineer who enjoys working on secure, high-availability microservices, is comfortable with advanced cryptography, and wants to drive automation and quality across the entire delivery lifecycle.
Hybrid work options available.
CONTRACT & BENEFITS: Permanent contract, annual training plan, summer intensive schedule, company parking, flexible compensation (transport, childcare, training, health insurance).

📌 Senior Java Backend Developer - Cloud-Native Microservices & Cryptography (El Prat de Llobregat)
🏢 Giesecke+Devrient
📍 El Prat de Llobregat