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 ideal 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, adaptable compensation (transport, childcare, training, health insurance).

📌 Senior Java Backend Developer - Cloud-Native Microservices & Cryptography (Cataluña)
🏢 Giesecke+Devrient
📍 Cataluña